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Li Y, Gu J, Li R, Yi H, He J, Gao J. Sensory and motor cortices parcellations estimated via distance-weighted sparse representation with application to autism spectrum disorder. Prog Neuropsychopharmacol Biol Psychiatry 2024; 135:111125. [PMID: 39173993 DOI: 10.1016/j.pnpbp.2024.111125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 08/05/2024] [Accepted: 08/19/2024] [Indexed: 08/24/2024]
Abstract
BACKGROUND Motor impairments and sensory processing abnormalities are prevalent in autism spectrum disorder (ASD), closely related to the core functions of the primary motor cortex (M1) and the primary somatosensory cortex (S1). Currently, there is limited knowledge about potential therapeutic targets in the subregions of M1 and S1 in ASD patients. This study aims to map clinically significant functional subregions of M1 and S1. METHODS Resting-state functional magnetic resonance imaging data (NTD = 266) from Autism Brain Imaging Data Exchange (ABIDE) were used for subregion modeling. We proposed a distance-weighted sparse representation algorithm to construct brain functional networks. Functional subregions of M1 and S1 were identified through consensus clustering at the group level. Differences in the characteristics of functional subregions were analyzed, along with their correlation with clinical scores. RESULTS We observed symmetrical and continuous subregion organization from dorsal to ventral aspects in M1 and S1, with M1 subregions conforming to the functional pattern of the motor homunculus. Significant intergroup differences and clinical correlations were found in the dorsal and ventral aspects of M1 (p < 0.05/3, Bonferroni correction) and the ventromedial BA3 of S1 (p < 0.05/5). These functional characteristics were positively correlated with autism severity. All subregions showed significant results in the ROI-to-ROI intergroup differential analysis (p < 0.05/80). LIMITATIONS The generalizability of the segmentation model requires further evaluation. CONCLUSIONS This study highlights the significance of M1 and S1 in ASD treatment and may provide new insights into brain parcellation and the identification of therapeutic targets for ASD.
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Affiliation(s)
- Yanling Li
- School of Electrical Engineering and Electronic Information, Xihua University, 9999 Hongguang Avenue, Pixian District, Sichuan Province, Chengdu 610039, China
| | - Jiahe Gu
- School of Electrical Engineering and Electronic Information, Xihua University, 9999 Hongguang Avenue, Pixian District, Sichuan Province, Chengdu 610039, China
| | - Rui Li
- School of Electrical Engineering and Electronic Information, Xihua University, 9999 Hongguang Avenue, Pixian District, Sichuan Province, Chengdu 610039, China
| | - Hongtao Yi
- School of Electrical Engineering and Electronic Information, Xihua University, 9999 Hongguang Avenue, Pixian District, Sichuan Province, Chengdu 610039, China
| | - Junbiao He
- School of Electrical Engineering and Electronic Information, Xihua University, 9999 Hongguang Avenue, Pixian District, Sichuan Province, Chengdu 610039, China
| | - Jingjing Gao
- School of Information and Communication Engineering, University of Electronic Science and Technology of China, 2006 Xiyuan Avenue, High-tech Zone (West Zone), Sichuan Province, Chengdu 611731, China.
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2
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Gulsuna B, Güngör A, Börcek AO, Türe U. Revealing the confusion of the evolution of the term sagittal stratum. Historical overview and systematic literature review. Cortex 2024; 171:40-59. [PMID: 37979231 DOI: 10.1016/j.cortex.2023.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/14/2023] [Accepted: 10/26/2023] [Indexed: 11/20/2023]
Abstract
The fiber dissection technique is one of the earliest methods used to demonstrate the internal structures of the brain, but until the development of fiber tractography, most neuroanatomy studies were related to the cerebral cortex and less attention was given to the white matter. During the historical evolution of white matter dissection, debates have arisen about tissue preservation methods, dissection methodology, nomenclature, and efforts to adopt findings from primates to the human brain. Since its first description, the sagittal stratum has been one of the white matter structures subject to controversy and has not been sufficiently considered in the literature. With recent functional studies suggesting potential functions of the sagittal stratum, the importance of attaining a precise understanding of this structure and its constituent fiber tracts is further highlighted. This study revisits the historical background of white matter dissection, unveils the early synonymous descriptions of the sagittal stratum, and provides a systematic review of the current literature. Through evaluation of the historical statements about the sagittal stratum, we provide an understanding of the divergence and explain the reasons for the ambiguity. We believe that acquiring such an understanding will lead to further investigations on this subject, which has the potential to benefit in addressing various neuropsychiatric conditions, maintaining functional connectivity, and optimizing surgical outcomes.
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Affiliation(s)
- Beste Gulsuna
- Department of Neurosurgery, Yeditepe University School of Medicine, Istanbul, Turkey; Department of Neurological Surgery, University of California, San Francisco, CA, USA
| | - Abuzer Güngör
- Department of Neurosurgery, Yeditepe University School of Medicine, Istanbul, Turkey; Department of Neurosurgery, Istinye University Faculty of Medicine, Istanbul, Turkey
| | - Alp O Börcek
- Department of Neurosurgery, Gazi University School of Medicine, Ankara, Turkey
| | - Uğur Türe
- Department of Neurosurgery, Yeditepe University School of Medicine, Istanbul, Turkey.
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3
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Makris N, Rushmore R, Yeterian E. A proposed structural connectivity matrices approach for the superior fronto-occipital fascicle in the Harvard-Oxford Atlas comparative framework following the Pandya comparative extrapolation principle. J Comp Neurol 2023; 531:2172-2184. [PMID: 38010231 PMCID: PMC11019921 DOI: 10.1002/cne.25562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 09/19/2023] [Accepted: 10/13/2023] [Indexed: 11/29/2023]
Abstract
A key set of connections necessary for the most complex brain functions are the long association cortico-cortical fiber tracts. These pathways have been described by the Dejerines and others using post mortem histological or brain dissection techniques. Given methodological limitations, these fiber connections have not been delineated completely in humans. Although the stem portions of fiber tracts have been identified in humans, their precise origins and terminations remain to be determined. By contrast, the origins and terminations as well as the stems of long cortico-cortical association fiber pathways in monkeys have been detailed in the macaque monkey brain using experimental tract tracing methods. Deepak Pandya made major contributions to the delineation of fiber tracts in the monkey brain. In the early 1990s, he compared his observations in monkeys with the original descriptions in humans by the Dejerines. With the advent of diffusion-weighted imaging, Dr. Pandya extended this line of investigation to the human brain with Dr. Nikos Makris. In this translational analysis of long association cortico-cortical fiber tracts, they applied a principle of extrapolation from monkey to human. In the present study, we addressed the reasoning and the complex methodology in translating brain structural connectivity from monkey to human in one cortico-cortical fiber tract, namely the superior fronto-occipital fascicle, which was delineated in both species by Dr. Pandya and colleagues. Furthermore, we represented this information in the form of connectional matrices in the context of the HOA2.0-ComPaRe framework, a homological monkey-to-human translational system used in neuroimaging.
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Affiliation(s)
- Nikos Makris
- Center for Morphometric Analysis, Departments of Psychiatry and Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Psychiatry Neuroimaging Laboratory, Brigham and Women’s Hospital, Boston, MA, USA
- Department of Anatomy and Neurobiology, Boston University School of Medicine, Boston, MA, USA
| | - Richard Rushmore
- Center for Morphometric Analysis, Departments of Psychiatry and Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Psychiatry Neuroimaging Laboratory, Brigham and Women’s Hospital, Boston, MA, USA
- Department of Anatomy and Neurobiology, Boston University School of Medicine, Boston, MA, USA
| | - Edward Yeterian
- Center for Morphometric Analysis, Departments of Psychiatry and Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Psychology, Colby College, Waterville, ME, USA
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4
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Park SE, Jeon YJ, Baek HM. Benefits of high-dielectric pad for neuroimaging study in 7-Tesla MRI. J Anal Sci Technol 2023. [DOI: 10.1186/s40543-023-00380-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Open
Abstract
AbstractThis study aimed to evaluate whether the use of a high-dielectric pad is effective in increasing transmit and receive sensitivity in areas of low signal intensity in the human brain at high magnetic fields and assess its usefulness in neuroimaging studies. The novelty of this study lies in the first reported use of diffusion tensor imaging (DTI) results to evaluate the effect of the pad on neuroimaging. Six volunteers underwent MR scanning using a 7 T MR system. T1-weighted images (T1w) and diffusion-weighted images (DWI) were acquired to demonstrate the benefits of a high-dielectric pad made of barium titanate (BaTiO3). For all imaging experiments, two datasets were acquired per person, one with and one without a high-dielectric pad. Enhancement of signal sensitivity in neuroimaging has been analyzed by DTI study. Higher signal intensities and spatial contrast were demonstrated in the in T1w images acquired using high-dielectric pad than in those acquired without high-dielectric pad. Especially in DTI studies, increased quantitative anisotropy (QA) signals were observed in the corticospinal tract (CST), frontopontine tract (FPT), splenium of corpus callosum (SCC), fornix (FX), inferior fronto-occipital fasciculus (IFOF), cerebellum (CB), middle cerebellar peduncle (MCP), and body of corpus callosum (BCC) (FDR < 0.05). The signal differences accounted for an overall 20% increase. A high-dielectric pad is effective in enhancing signal intensity in human brain images acquired using 7 T MRI. Our results show that the use of such pad can increase the spatial resolution, tissue contrast, and signal intensity in neuroimaging studies. These findings suggest that high-dielectric pads may provide a relatively simple and low-cost method for spatiotemporal brain imaging studies.
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Zhao L, Zhao W, Cao J, Tu Y. Causal relationships between migraine and microstructural white matter: a Mendelian randomization study. J Headache Pain 2023; 24:10. [PMID: 36793015 PMCID: PMC9933315 DOI: 10.1186/s10194-023-01550-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 02/09/2023] [Indexed: 02/17/2023] Open
Abstract
BACKGROUND Migraine is a disabling neurological disorder with the pathophysiology yet to be understood. The microstructural alteration in brain white matter (WM) has been suggested to be related to migraine in recent studies, but these evidence are observational essentially and cannot infer a causal relationship. The present study aims to reveal the causal relationship between migraine and microstructural WM using genetic data and Mendelian randomization (MR). METHODS We collected the Genome-wide association study (GWAS) summary statistics of migraine (48,975 cases / 550,381 controls) and 360 WM imaging-derived phenotypes (IDPs) (31,356 samples) that were used to measure microstructural WM. Based on instrumental variables (IVs) selected from the GWAS summary statistics, we conducted bidirectional two-sample MR analyses to infer bidirectional causal associations between migraine and microstructural WM. In forward MR analysis, we inferred the causal effect of microstructural WM on migraine by reporting the odds ratio (OR) that quantified the risk change of migraine for per 1 standard deviation (SD) increase of IDPs. In reverse MR analysis, we inferred the causal effect of migraine on microstructural WM by reporting the β value that represented SDs of changes in IDPs were caused by migraine. RESULTS Three WM IDPs showed significant causal associations (p < 3.29 × 10- 4, Bonferroni correction) with migraine and were proved to be reliable via sensitivity analysis. The mode of anisotropy (MO) of left inferior fronto-occipital fasciculus (OR = 1.76, p = 6.46 × 10- 5) and orientation dispersion index (OD) of right posterior thalamic radiation (OR = 0.78, p = 1.86 × 10- 4) exerted significant causal effects on migraine. Migraine exerted a significant causal effect on the OD of left superior cerebellar peduncle (β = - 0.09, p = 2.78 × 10- 4). CONCLUSIONS Our findings provided genetic evidence for the causal relationships between migraine and microstructural WM, bringing new insights into brain structure for the development and experience of migraine.
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Affiliation(s)
- Lei Zhao
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Wenhui Zhao
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Jin Cao
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China.
| | - Yiheng Tu
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.
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Niu M, Palomero-Gallagher N. Architecture and connectivity of the human angular gyrus and of its homolog region in the macaque brain. Brain Struct Funct 2023; 228:47-61. [PMID: 35695934 DOI: 10.1007/s00429-022-02509-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 05/09/2022] [Indexed: 01/07/2023]
Abstract
The angular gyrus roughly corresponds to Brodmann's area 39, which is a multimodal association brain region located in the posterior apex of the human inferior parietal lobe, at its interface with the temporal and occipital lobes. It encompasses two cyto- and receptor architectonically distinct areas: caudal PGp and rostral PGa. The macaque brain does not present an angular gyrus in the strict sense, and the establishment of homologies was further hindered by the fact that Brodmann defined a single cytoarchitectonic area covering the entire guenon inferior parietal lobule in the monkey brain, i.e. area 7. Latter architectonic studies revealed the existence of 6 architectonically distinct areas within macaque area 7, further connectivity and functional imaging studies supported the hypothesis that the most posterior of these macaque areas, namely Opt and PG, may constitute the homologs of human areas PGp and PGa, respectively. The present review provides an overview of the cyto-, myelo and receptor architecture of human areas PGp and PGa, as well as of their counterparts in the macaque brain, and summarizes current knowledge on the connectivity of these brain areas. Finally, the present study elaborates on the rationale behind the definition of these homologies and their importance in translational studies.
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Affiliation(s)
- Meiqi Niu
- Institute of Neuroscience and Medicine (INM-1), Research Centre Jülich, Jülich, Germany.
| | - Nicola Palomero-Gallagher
- Institute of Neuroscience and Medicine (INM-1), Research Centre Jülich, Jülich, Germany.,C. & O. Vogt Institute for Brain Research, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany.,Department of Psychiatry, Psychotherapy, and Psychosomatics, Medical Faculty, RWTH Aachen University, Aachen, Germany
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7
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Colic L, Villa LM, Dauvermann MR, van Velzen LS, Sankar A, Goldman DA, Panchal P, Kim JA, Quatrano S, Spencer L, Constable RT, Suckling J, Goodyer IM, Schmaal L, van Harmelen AL, Blumberg HP. Brain grey and white matter structural associations with future suicidal ideation and behaviors in adolescent and young adult females with mood disorders. JCPP ADVANCES 2022; 2:e12118. [PMID: 36817186 PMCID: PMC9937714 DOI: 10.1002/jcv2.12118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background To reduce suicide in females with mood disorders, it is critical to understand brain substrates underlying their vulnerability to future suicidal ideation and behaviors (SIBs) in adolescence and young adulthood. In an international collaboration, grey and white matter structure was investigated in adolescent and young adult females with future suicidal behaviors (fSB) and ideation (fSI), and without SIBs (fnonSIB). Methods Structural (n = 91) and diffusion-weighted (n = 88) magnetic resonance imaging scans at baseline and SIB measures at follow-up on average two years later (standard deviation, SD = 1 year) were assessed in 92 females [age(SD) = 16.1(2.6) years] with bipolar disorder (BD, 28.3%) or major depressive disorder (MDD, 71.7%). One-way analyses of covariance comparing baseline regional grey matter cortical surface area, thickness, subcortical grey volumes, or white matter tensor-based fractional anisotropy across fSB (n = 40, 43.5%), fSI (n = 33, 35.9%) and fnonSIB (n = 19, 20.6%) groups were followed by pairwise comparisons in significant regions (p < 0.05). Results Compared to fnonSIBs, fSIs and fSBs showed significant decreases in cortical thickness of right inferior frontal gyrus pars orbitalis and middle temporal gyrus, fSIs of left inferior frontal gyrus, pars orbitalis. FSIs and fSBs showed lower fractional anisotropy in left uncinate fasciculus and corona radiata, and fSBs in right uncinate and superior fronto-occipital fasciculi. Conclusions The study provides preliminary evidence of grey and white matter alterations in brain regions subserving emotional and behavioral regulation and perceptual processing in adolescent and young adult females with mood disorders with, versus without, future SIBs. Findings suggest potential targets to prevent SIBs in female adolescents and young adults.
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Affiliation(s)
- Lejla Colic
- Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Jena, Germany
- German Center for Mental Health, Jena, Germany
| | - Luca M. Villa
- Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Maria R. Dauvermann
- Department of Psychiatry, University of Cambridge, Cambridge, UK
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Institute for Mental Health, School of Psychology, University of Birmingham, Birmingham, UK
| | - Laura S. van Velzen
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Anjali Sankar
- Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA
- Department of Neurology and Neurobiology Research Unit, Copenhagen University Hospital, Kobenhavn, Denmark
| | - Danielle A. Goldman
- Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA
- Interdepartmental Neuroscience Program, Yale School of Medicine, New Haven, Connecticut, USA
| | - Priyanka Panchal
- Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Jihoon A. Kim
- Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA
| | - Susan Quatrano
- Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA
| | - Linda Spencer
- Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA
| | - R. Todd Constable
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA
| | - John Suckling
- Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Ian M. Goodyer
- Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Lianne Schmaal
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Anne-Laura van Harmelen
- Department of Psychiatry, University of Cambridge, Cambridge, UK
- Institute of Education and Child Studies, Leiden University, Leiden, The Netherlands
| | - Hilary P. Blumberg
- Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA
- Child Study Center, Yale School of Medicine, New Haven, Connecticut, USA
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8
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Weng JC, Chuang YC, Zheng LB, Lee MS, Ho MC. Assessment of brain connectome alterations in male chronic smokers using structural and generalized q-sampling MRI. Brain Imaging Behav 2022; 16:1761-1775. [PMID: 35294980 DOI: 10.1007/s11682-022-00647-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2022] [Indexed: 11/26/2022]
Abstract
An association has been shown between chronic cigarette smoking and structural abnormalities in the brain areas related to several functions relevant to addictive behavior. However, few studies have focused on the structural alternations of chronic smoking by using magnetic resonance imaging (MRI). Also, it remains unclear how structural alternations are associated with tobacco-dependence severity and the positive/negative outcome expectances. The q-sampling imaging (GQI) is an advanced diffusion MRI technique that can reconstruct more precise and consistent images of complex oriented fibers than other methods. We aimed to use GQI to evaluate the impact of the neurological structure caused by chronic smoking. Sixty-seven chronic smokers and 43 nonsmokers underwent a MRI scan. The tobacco dependence severity and the positive/negative outcome expectancies were assessed via self-report. We used GQI with voxel-based statistical analysis (VBA) to evaluate structural brain and connectivity abnormalities. Graph theoretical analysis (GTA) and network-based statistical (NBS) analysis were also performed to identify the structural network differences among groups. Chronic smokers had smaller GM and WM volumes in the bilateral frontal lobe and bilateral frontal region. The GM/WM volumes correlated with dependence severity and outcome expectancies in the brain areas involving high-level functions. Chronic smokers had shape changes in the left hippocampal head and tail and the inferior brain stem. Poorer WM integrity in chronic smokers was found in the left middle frontal region, the right superior fronto-occipital fasciculus, the right temporal region, the left parahippocampus, the left anterior internal capsule, and the right inferior parietal region. WM integrity correlated with dependence severity and outcome expectancies in brain areas involving high-level functions. Chronic smokers had decreased local segregation and global integration among the brain regions and networks. Our results provide further evidence indicating that chronic smoking may be associated with brain structure and connectivity changes.
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Affiliation(s)
- Jun-Cheng Weng
- Department of Medical Imaging and Radiological Sciences, Graduate Institute of Artificial Intelligence, Chang Gung University, 33302, Taoyuan, Taiwan
- Medical Imaging Research Center, Institute for Radiological Research, Chang Gung University, Chang Gung Memorial Hospital at Linkou, 33302, Taoyuan, Taiwan
- Department of Psychiatry, Chang Gung Memorial Hospital, 61363, Chiayi, Taiwan
| | - Yu-Chen Chuang
- Department of Medical Imaging and Radiological Sciences, Graduate Institute of Artificial Intelligence, Chang Gung University, 33302, Taoyuan, Taiwan
- Institute of Medical Device and Imaging, National Taiwan University College of Medicine, 10051, Taipei, Taiwan
| | - Li-Bang Zheng
- Department of Medical Imaging and Radiological Sciences, Graduate Institute of Artificial Intelligence, Chang Gung University, 33302, Taoyuan, Taiwan
| | - Ming-Shih Lee
- Department of Medical Laboratory and Biotechnology, Chung Shan Medical University, 40201, Taichung, Taiwan
- Clinical Laboratory, Chung Shan Medical University Hospital, 40201, Taichung, Taiwan
| | - Ming-Chou Ho
- Department of Psychology, Chung Shan Medical University, 40201, Taichung, Taiwan.
- Clinical Psychological Room, Chung Shan Medical University Hospital, 40201, Taichung, Taiwan.
- Department of Psychology, Chung Shan Medical University, No.110, Sec. 1, Chien-Kuo N. Road, 402, Taichung, Taiwan.
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9
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Bullock DN, Hayday EA, Grier MD, Tang W, Pestilli F, Heilbronner SR. A taxonomy of the brain's white matter: twenty-one major tracts for the 21st century. Cereb Cortex 2022; 32:4524-4548. [PMID: 35169827 PMCID: PMC9574243 DOI: 10.1093/cercor/bhab500] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/06/2021] [Accepted: 12/07/2021] [Indexed: 01/26/2023] Open
Abstract
The functional and computational properties of brain areas are determined, in large part, by their connectivity profiles. Advances in neuroimaging and network neuroscience allow us to characterize the human brain noninvasively, but a comprehensive understanding of the human brain demands an account of the anatomy of brain connections. Long-range anatomical connections are instantiated by white matter, which itself is organized into tracts. These tracts are often disrupted by central nervous system disorders, and they can be targeted by neuromodulatory interventions, such as deep brain stimulation. Here, we characterized the connections, morphology, traversal, and functions of the major white matter tracts in the brain. There are major discrepancies across different accounts of white matter tract anatomy, hindering our attempts to accurately map the connectivity of the human brain. However, we are often able to clarify the source(s) of these discrepancies through careful consideration of both histological tract-tracing and diffusion-weighted tractography studies. In combination, the advantages and disadvantages of each method permit novel insights into brain connectivity. Ultimately, our synthesis provides an essential reference for neuroscientists and clinicians interested in brain connectivity and anatomy, allowing for the study of the association of white matter's properties with behavior, development, and disorders.
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Affiliation(s)
- Daniel N Bullock
- Department of Psychological and Brain Sciences, Program in Neuroscience, Indiana University Bloomington, Bloomington, IN 47405, USA,Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA
| | - Elena A Hayday
- Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA
| | - Mark D Grier
- Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA
| | | | | | - Sarah R Heilbronner
- Address correspondence to Sarah R. Heilbronner, Department of Neuroscience, University of Minnesota, 2-164 Jackson Hall, 321 Church St SE, Minneapolis, MN 55455, USA.
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10
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Landers MJ, Baene WD, Rutten GJ, Mandonnet E. The third branch of the superior longitudinal system. J Neurosurg Sci 2022; 65:548-559. [PMID: 35128918 DOI: 10.23736/s0390-5616.21.05423-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
One of the major associative fiber pathways in the brain is the superior longitudinal system. This review discusses the current knowledge gained from studies on the third branch of the superior longitudinal system (SLS) regarding its anatomy, functional role in healthy individuals, results from lesion-symptom mapping studies and intraoperative electrostimulation studies. The results of these studies clearly indicate that the third branch of the SLS is a distinct pathway, as seen both from a functional and anatomical perspective. The third branch of the SLS should be distinguished from the long segment of the arcuate fasciculus, that courses along its trajectory but seems implicated in different functions. Moreover, these studies also provide substantial evidence that the right and left third branch of the SLS have different functional roles. Finally, a hypothesis for an integrated anatomo-functional model is proposed, that describes three subcomponents of the third branch of the superior longitudinal system.
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Affiliation(s)
- Maud J Landers
- Department of Neurosurgery, Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands.,Department of Cognitive Neuropsychology, University of Tilburg, Tilburg, the Netherlands
| | - Wouter de Baene
- Department of Cognitive Neuropsychology, University of Tilburg, Tilburg, the Netherlands
| | - Geert J Rutten
- Department of Neurosurgery, Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands.,Department of Cognitive Neuropsychology, University of Tilburg, Tilburg, the Netherlands
| | - Emmanuel Mandonnet
- University of Paris, Paris, France - .,Frontlab, Institut du Cerveau (ICM), CNRS UMR 7225, INSERM U1127, Paris, France.,Service of Neurosurgery, Lariboisière Hospital, Paris, France
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11
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Frot M, Mauguière F, Garcia-Larrea L. Insular Dichotomy in the Implicit Detection of Emotions in Human Faces. Cereb Cortex 2022; 32:4215-4228. [PMID: 35029677 DOI: 10.1093/cercor/bhab477] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 11/03/2021] [Accepted: 11/23/2021] [Indexed: 12/17/2022] Open
Abstract
The functional roles of the insula diverge between its posterior portion (PI), mainly connected with somato-sensory and motor areas, and its anterior section (AI) connected with the frontal, limbic, and cingulate regions. We report intracranial recordings of local field evoked potentials from PI, AI, and the visual fusiform gyrus to a full array of emotional faces including pain while the individuals' attention was diverted from emotions. The fusiform gyrus and PI responded equally to all types of faces, including neutrals. Conversely, the AI responded only to emotional faces, maximally to pain and fear, while remaining insensitive to neutrals. The two insular sectors reacted with almost identical latency suggesting their parallel initial activation via distinct functional routes. The consistent responses to all emotions, together with the absence of response to neutral faces, suggest that early responses in the AI reflect the immediate arousal value and behavioral relevance of emotional stimuli, which may be subserved by "fast track" routes conveying coarse-spatial-frequency information via the superior colliculus and dorsal pulvinar. Such responses precede the conscious detection of the stimulus' precise signification and valence, which need network interaction and information exchange with other brain areas, for which the AI is an essentialhub.
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Affiliation(s)
- Maud Frot
- Central Integration of Pain (NeuroPain) Lab-Lyon Neuroscience Research Center, INSERM U1028, CNRS, UMR5292, Université Claude Bernard, Bron 69677, France
| | - François Mauguière
- Central Integration of Pain (NeuroPain) Lab-Lyon Neuroscience Research Center, INSERM U1028, CNRS, UMR5292, Université Claude Bernard, Bron 69677, France
| | - Luis Garcia-Larrea
- Central Integration of Pain (NeuroPain) Lab-Lyon Neuroscience Research Center, INSERM U1028, CNRS, UMR5292, Université Claude Bernard, Bron 69677, France
- Centre d'Evaluation et de Traitement de la Douleur, Hospices Civils de Lyon, Lyon 69003, France
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12
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Goldwaser EL, Du X, Adhikari BM, Kvarta M, Chiappelli J, Hare S, Marshall W, Savransky A, Carino K, Bruce H, Acheson A, Kochunov P, Elliot Hong L. Role of White Matter Microstructure in Impulsive Behavior. J Neuropsychiatry Clin Neurosci 2022; 34:254-260. [PMID: 35040662 PMCID: PMC9289076 DOI: 10.1176/appi.neuropsych.21070167] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVE Increased impulsivity is a hallmark trait of some neuropsychiatric illnesses, including addiction, traumatic brain injury, and externalizing disorders. The authors hypothesized that altered cerebral white matter microstructure may also underwrite normal individual variability in impulsive behaviors and tested this among healthy individuals. METHODS Impulsivity and diffusion tensor imaging (DTI) data were collected from 74 healthy adults (32 women; mean age=36.6 years [SD=13.6]). Impulsivity was evaluated using the Barratt Impulsiveness Scale-11, which provides a total score and scores for three subdomains: attentional, motor, and nonplanning impulsiveness. DTI was processed using the Enhancing Neuro Imaging Genetics Through Meta Analysis-DTI analysis pipeline to measure whole-brain and regional white matter fractional anisotropy (FA) values in 24 tracts. RESULTS Whole-brain total average FA was inversely correlated with motor impulsiveness (r=-0.32, p=0.007) and positively correlated with nonplanning impulsiveness (r=0.29, p=0.02); these correlations were significant after correction for multiple comparisons. Additional significant correlations were observed for motor impulsiveness and regional FA values for the corticospinal tract (r=-0.29, p=0.01) and for nonplanning impulsiveness and regional FA values for the superior fronto-occipital fasciculus (r=0.32, p=0.008). CONCLUSIONS These results provide initial evidence that the motor and nonplanning subdomains of impulsive behavior are linked to specific white matter microstructural connectivity, supporting the notion that impulsivity is in part a network-based construct involving white matter microstructural integrity among otherwise healthy populations.
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Affiliation(s)
- Eric L. Goldwaser
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Xiaoming Du
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Bhim M. Adhikari
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Mark Kvarta
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Joshua Chiappelli
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Stephanie Hare
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Wyatt Marshall
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Anya Savransky
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Kathleen Carino
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Heather Bruce
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Ashley Acheson
- Psychiatry and Behavioral Science, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Peter Kochunov
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - L. Elliot Hong
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
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13
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Qiao Y, He X, Zhang J, Liang Y, Shao W, Zhang Z, Zhang S, Peng D. The Associations Between White Matter Disruptions and Cognitive Decline at the Early Stage of Subcortical Vascular Cognitive Impairment: A Case-Control Study. Front Aging Neurosci 2021; 13:681208. [PMID: 34408641 PMCID: PMC8364958 DOI: 10.3389/fnagi.2021.681208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 06/04/2021] [Indexed: 11/13/2022] Open
Abstract
Objective Emerging evidence suggests that white matter (WM) disruption is associated with the incidence of subcortical vascular cognitive impairment (SVCI). However, our knowledge regarding this relationship in the early stage of SVCI is limited. We aimed to investigate the associations between WM disruptions and cognitive declines at the early stage of SVCI. Method We performed a case–control study, involving 22 cases and 19 controls. The cases were patients at the early stage of SVCI, which was defined as subcortical ischemic vascular disease with normal global cognitive measures (pre-SVCI). The controls were healthy people matched by age, sex, and education years. We assessed the differences in a battery of neuropsychological tests between the two groups, investigated the diffusion changes in 40 WM tracts among the participants via an atlas-based segmentation strategy, and compared the differences between the cases and controls by multiple linear regression analysis. We then evaluated the relationships between diffusion indices and cognitive assessment scores by Pearson’s correlation. Results The pre-SVCI group exhibited significant differences in the Montreal cognitive assessment (MoCA), Rey–Osterrieth Complex Figure (R-O)-copy, and Trail Making Test (TMT)-B test compared with the controls. Compared with the controls, some long associative and projective bundles, such as the right anterior corona radiata (ACR), the right inferior fronto-occipital fasciculus (IFOF), and the left external capsule (EC), were extensively damaged in cases after Bonferroni correction (p < 0.05/40). Damages to specific fibers, such as the right ACR, IFOF, and posterior thalamic radiation (PTR), exhibited significant correlations with declines in MoCA, R-O delay, and the Mini-Mental State Examination (MMSE), respectively, after Bonferroni correction (p < 0.05/14). Conclusion Long WM tracts, especially those in the right hemisphere, were extensively damaged in the pre-SVCI patients and correlated with declines in executive functions and spatial processing. Patients of pre-SVCI are likely at an ultra-early stage of SVCI, and there is a very high risk of this condition becoming SVCI.
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Affiliation(s)
- Yanan Qiao
- Department of Neurology, China-Japan Friendship Hospital, Beijing, China
| | - Xuwen He
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Junying Zhang
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Ying Liang
- School of Biomedical Engineering, Capital Medical University, Beijing, China
| | - Wen Shao
- Department of Neurology, China-Japan Friendship Hospital, Beijing, China
| | - Zhanjun Zhang
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Sihang Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Dantao Peng
- Department of Neurology, China-Japan Friendship Hospital, Beijing, China
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14
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Roux A, Lemaitre AL, Deverdun J, Ng S, Duffau H, Herbet G. Combining Electrostimulation With Fiber Tracking to Stratify the Inferior Fronto-Occipital Fasciculus. Front Neurosci 2021; 15:683348. [PMID: 34093122 PMCID: PMC8172990 DOI: 10.3389/fnins.2021.683348] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 04/23/2021] [Indexed: 12/13/2022] Open
Abstract
The inferior fronto-occipital fasciculus (IFOF) is one of the longest association fiber tracts of the brain. According to the most recent anatomical studies, it may be formed by several layers, suggesting a role in multiple cognitive functions. However, to date, no attempt has been made to dissociate the functional contribution of the IFOF subpathways. In this study, real-time, cortico-subcortical mapping with direct electrostimulation was performed in 111 patients operated on in wide-awake surgery for a right low-grade glioma. Patients performed two behavioral tasks during stimulation, tapping, respectively, mentalizing and visual semantic cognition-two functions supposed to be partly mediated by the IFOF. Responsive white matter sites were first subjected to a clustering analysis to assess potential topological differences in network organization. Then they were used as seeds to generate streamline tractograms based on the HC1021 diffusion dataset (template-based approach). The tractograms obtained for each function were overlapped and contrasted to determine whether some fiber pathways were more frequently involved in one or the other function. The obtained results not only provided strong evidence for a role of the right IFOF in both functions, but also revealed that the tract is dissociable into two functional strata according to a ventral (semantic) and dorsal (mentalizing) compartmentalization. Besides, they showed a high degree of anatomo-functionnal variability across patients in the functional implication of the IFOF, possibly related to symmetrical/hemispheric differences in network organization. Collectively, these findings support the view that the right IFOF is a functionally multi-layered structure, with nevertheless interindividual variations.
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Affiliation(s)
- Alexandre Roux
- Department of Neurosurgery, GHU Paris, Sainte-Anne Hospital, Paris, France.,Université de Paris, Sorbonne Paris Cité, Paris, France.,Inserm UMR 1266, IMA-Brain, Institute of Psychiatry and Neurosciences of Paris, Paris, France
| | - Anne-Laure Lemaitre
- Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France
| | - Jeremy Deverdun
- Department of Neuroradiology, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France.,I2FH, Institut d'Imagerie Fonctionnelle Humaine, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France
| | - Sam Ng
- Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France.,Institute of Functional Genomics, University of Montpellier, INSERM, CNRS, Montpellier, France
| | - Hugues Duffau
- Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France.,Institute of Functional Genomics, University of Montpellier, INSERM, CNRS, Montpellier, France
| | - Guillaume Herbet
- Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France.,Institute of Functional Genomics, University of Montpellier, INSERM, CNRS, Montpellier, France
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15
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Bugain M, Dimech Y, Torzhenskaya N, Thiebaut de Schotten M, Caspers S, Muscat R, Bajada CJ. Occipital Intralobar fasciculi: a description, through tractography, of three forgotten tracts. Commun Biol 2021; 4:433. [PMID: 33785859 PMCID: PMC8010026 DOI: 10.1038/s42003-021-01935-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 03/03/2021] [Indexed: 02/01/2023] Open
Abstract
Diffusion MRI paired with tractography has facilitated a non-invasive exploration of many association, projection, and commissural fiber tracts. However, there is still a scarcity of research studies related to intralobar association fibers. The Dejerines' (two of the most notable neurologists of 19th century France) gave an in-depth description of the intralobar fibers of the occipital lobe. Unfortunately, their exquisite work has since been sparsely cited in the modern literature. This work gives a modern description of many of the occipital intralobar lobe fibers described by the Dejerines. We perform a virtual dissection and reconstruct the tracts using diffusion MRI tractography. The dissection is guided by the Dejerines' treatise, Anatomie des Centres Nerveux. As an accompaniment to this article, we provided a French-to-English translation of the treatise portion concerning five intra-occipital tracts, namely: the stratum calcarinum, the stratum proprium cunei, the vertical occipital fasciculus of Wernicke, the transverse fasciculus of the cuneus and the transverse fasciculus of the lingual lobule of Vialet. It was possible to reconstruct all but one of these tracts. For completeness, the recently described sledge runner fasciculus, although not one of the Dejerines' tracts, was identified and successfully reconstructed.
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Affiliation(s)
- Maeva Bugain
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, The University of Malta, Msida, Malta
| | - Yana Dimech
- Department of Cognitive Sciences, Faculty of Media and Knowledge Sciences, The University of Malta, Msida, Malta
| | - Natalia Torzhenskaya
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, The University of Malta, Msida, Malta
| | - Michel Thiebaut de Schotten
- Brain Connectivity and Behaviour Laboratory, Sorbonne Universities, Paris, France
- Groupe d'Imagerie Neurofonctionnelle, Institut des Maladies Neurodégénératives -UMR 5293, CNRS, CEA University of Bordeaux, Bordeaux, France
| | - Svenja Caspers
- Institute of Neuroscience and Medicine (INM-1), Research Centre Juelich, Juelich, Germany
- Institute for Anatomy I, Medical Faculty, Heinrich-Heine-University Duesseldorf, Duesseldorf, Germany
| | - Richard Muscat
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, The University of Malta, Msida, Malta
| | - Claude J Bajada
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, The University of Malta, Msida, Malta.
- Institute of Neuroscience and Medicine (INM-1), Research Centre Juelich, Juelich, Germany.
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16
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Visuoperceptive Impairments in Severe Alcohol Use Disorder: A Critical Review of Behavioral Studies. Neuropsychol Rev 2021; 31:361-384. [PMID: 33591477 DOI: 10.1007/s11065-020-09469-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 11/29/2020] [Indexed: 01/13/2023]
Abstract
The present literature review is aimed at offering a comprehensive and critical view of behavioral data collected during the past seventy years concerning visuoperception in severe alcohol use disorders (AUD). To pave the way for a renewal of research and clinical approaches in this very little understood field, this paper (1) provides a critical review of previous behavioral studies exploring visuoperceptive processing in severe AUD, (2) identifies the alcohol-related parameters and demographic factors that influence the deficits, and (3) addresses the limitations of this literature and their implications for current clinical strategies. By doing so, this review highlights the presence of visuoperceptive deficits but also shows how the lack of in-depth studies exploring the visual system in this clinical population results in the current absence of integration of these deficits in the dominant models of vision. Given the predominance of vision in everyday life, we stress the need to better delineate the extent, the specificity, and the actual implications of the deficits for severe AUD.
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17
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Creupelandt C, D'Hondt F, Maurage P. Neural correlates of visuoperceptive changes in severe alcohol use disorder: A critical review of neuroimaging and electrophysiological findings. J Neurosci Res 2021; 99:1253-1275. [PMID: 33550638 DOI: 10.1002/jnr.24799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/04/2021] [Accepted: 01/06/2021] [Indexed: 01/04/2023]
Abstract
Visuoperceptive deficits are frequently reported in severe alcohol use disorder (SAUD) and are considered as pervasive and persistent in time. While this topic of investigation has previously driven researchers' interest, far fewer studies have focused on visuoperception in SAUD since the '90s, leaving open central questions regarding the origin and implications of these deficits. To renew research in the field and provide a solid background to work upon, this paper reviews the neural correlates of visuoperception in SAUD, based on data from neuroimaging and electrophysiological studies. Results reveal structural and functional changes within the visual system but also in the connections between occipital and frontal areas. We highlight the lack of integration of these findings in the dominant models of vision which stress the dynamic nature of the visual system and consider the presence of both bottom-up and top-down cerebral mechanisms. Visuoperceptive changes are also discussed in the framework of long-lasting debates regarding the influence of demographic and alcohol-related factors, together stressing the presence of inter-individual differences. Capitalizing on this review, we provide guidelines to inform future research, and ultimately improve clinical care.
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Affiliation(s)
- Coralie Creupelandt
- Louvain Experimental Psychopathology Research Group (UCLEP), Faculté de Psychologie, Psychological Sciences Research Institute (IPSY), UCLouvain, Louvain-la-Neuve, Belgium
| | - Fabien D'Hondt
- Univ. Lille, Inserm, CHU Lille, U1172 - LilNCog - Lille Neuroscience & Cognition, Lille, France.,CHU Lille, Clinique de Psychiatrie, CURE, Lille, France.,Centre National de Ressources et de Résilience Lille-Paris (CN2R), Lille, France
| | - Pierre Maurage
- Louvain Experimental Psychopathology Research Group (UCLEP), Faculté de Psychologie, Psychological Sciences Research Institute (IPSY), UCLouvain, Louvain-la-Neuve, Belgium
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18
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Errante A, Ziccarelli S, Mingolla G, Fogassi L. Grasping and Manipulation: Neural Bases and Anatomical Circuitry in Humans. Neuroscience 2021; 458:203-212. [PMID: 33516776 DOI: 10.1016/j.neuroscience.2021.01.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 01/14/2021] [Accepted: 01/20/2021] [Indexed: 02/09/2023]
Abstract
Neurophysiological and neuroimaging evidence suggests a significant contribution of several brain areas, including subdivisions of the parietal and the premotor cortex, during the processing of different components of hand and arm movements. Many investigations improved our knowledge about the neural processes underlying the execution of reaching and grasping actions, while few studies have directly investigated object manipulation. Most studies on the latter topic concern the use of tools to achieve specific goals. Yet, there are very few studies on pure manipulation performed in order to explore and recognize objects, as well as on manipulation performed with a high level of manual dexterity. Another dimension that is quite neglected by the available studies on grasping and manipulation is, on the one hand, the contribution of the subcortical nodes, first of all the basal ganglia and cerebellum, to these functions, and, on the other hand, recurrent connections of these structures with cortical areas. In the first part, we have reviewed the parieto-premotor and subcortical circuits underlying reaching and grasping in humans, with a focus on functional neuroimaging data. Then, we have described the main structures recruited during object manipulation. We have also reported the contribution of recent structural connectivity techniques whereby the cortico-cortical and cortico-subcortical connections of grasping-related and manipulation-related areas in the human brain can be determined. Based on our review, we have concluded that studies on cortical and subcortical circuits involved in grasping and manipulation might be promising to provide new insights about motor learning and brain plasticity in patients with motor disorders.
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Affiliation(s)
- Antonino Errante
- Department of Medicine and Surgery, University of Parma, via Volturno 39, 43125 Parma, Italy
| | - Settimio Ziccarelli
- Department of Medicine and Surgery, University of Parma, via Volturno 39, 43125 Parma, Italy
| | - Gloria Mingolla
- Department of Medicine and Surgery, University of Parma, via Volturno 39, 43125 Parma, Italy
| | - Leonardo Fogassi
- Department of Medicine and Surgery, University of Parma, via Volturno 39, 43125 Parma, Italy.
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19
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Gutierrez CE, Skibbe H, Nakae K, Tsukada H, Lienard J, Watakabe A, Hata J, Reisert M, Woodward A, Yamaguchi Y, Yamamori T, Okano H, Ishii S, Doya K. Optimization and validation of diffusion MRI-based fiber tracking with neural tracer data as a reference. Sci Rep 2020; 10:21285. [PMID: 33339834 PMCID: PMC7749185 DOI: 10.1038/s41598-020-78284-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 11/24/2020] [Indexed: 11/29/2022] Open
Abstract
Diffusion-weighted magnetic resonance imaging (dMRI) allows non-invasive investigation of whole-brain connectivity, which can reveal the brain’s global network architecture and also abnormalities involved in neurological and mental disorders. However, the reliability of connection inferences from dMRI-based fiber tracking is still debated, due to low sensitivity, dominance of false positives, and inaccurate and incomplete reconstruction of long-range connections. Furthermore, parameters of tracking algorithms are typically tuned in a heuristic way, which leaves room for manipulation of an intended result. Here we propose a general data-driven framework to optimize and validate parameters of dMRI-based fiber tracking algorithms using neural tracer data as a reference. Japan’s Brain/MINDS Project provides invaluable datasets containing both dMRI and neural tracer data from the same primates. A fundamental difference when comparing dMRI-based tractography and neural tracer data is that the former cannot specify the direction of connectivity; therefore, evaluating the fitting of dMRI-based tractography becomes challenging. The framework implements multi-objective optimization based on the non-dominated sorting genetic algorithm II. Its performance is examined in two experiments using data from ten subjects for optimization and six for testing generalization. The first uses a seed-based tracking algorithm, iFOD2, and objectives for sensitivity and specificity of region-level connectivity. The second uses a global tracking algorithm and a more refined set of objectives: distance-weighted coverage, true/false positive ratio, projection coincidence, and commissural passage. In both experiments, with optimized parameters compared to default parameters, fiber tracking performance was significantly improved in coverage and fiber length. Improvements were more prominent using global tracking with refined objectives, achieving an average fiber length from 10 to 17 mm, voxel-wise coverage of axonal tracts from 0.9 to 15%, and the correlation of target areas from 40 to 68%, while minimizing false positives and impossible cross-hemisphere connections. Optimized parameters showed good generalization capability for test brain samples in both experiments, demonstrating the flexible applicability of our framework to different tracking algorithms and objectives. These results indicate the importance of data-driven adjustment of fiber tracking algorithms and support the validity of dMRI-based tractography, if appropriate adjustments are employed.
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Affiliation(s)
- Carlos Enrique Gutierrez
- Neural Computation Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan.
| | - Henrik Skibbe
- Brain Image Analysis Unit, RIKEN Center for Brain Science, Wako, Japan
| | - Ken Nakae
- Integrated Systems Biology Laboratory, Department of Systems Science, Graduate School of Informatics, Kyoto University, Kyoto, Japan
| | - Hiromichi Tsukada
- Neural Computation Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Jean Lienard
- Neural Computation Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Akiya Watakabe
- Laboratory for Molecular Analysis of Higher Brain Function, RIKEN Center for Brain Science, Wako, Japan
| | - Junichi Hata
- Laboratory for Marmoset Neural Architecture, RIKEN Center for Brain Science, Wako, Japan.,Division of Regenerative Medicine, The Jikei University School of Medicine, Tokyo, Japan.,Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - Marco Reisert
- Department of Medical Physics and Stereotaxy, Medical Center, Faculty of Medicine, University Freiburg, Freiburg, Germany
| | | | - Yoko Yamaguchi
- Applied Electronics Laboratory, Kanazawa Institute of Technology, Nonoichi, Japan.,Graduate School of Information Science and Technology, The University of Tokyo, Tokyo, Japan.,Laboratory for Cognitive Brain Mapping, RIKEN Center for Brain Science, Wako, Japan
| | - Tetsuo Yamamori
- Laboratory for Molecular Analysis of Higher Brain Function, RIKEN Center for Brain Science, Wako, Japan
| | - Hideyuki Okano
- Laboratory for Marmoset Neural Architecture, RIKEN Center for Brain Science, Wako, Japan.,Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - Shin Ishii
- Integrated Systems Biology Laboratory, Department of Systems Science, Graduate School of Informatics, Kyoto University, Kyoto, Japan
| | - Kenji Doya
- Neural Computation Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
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20
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Takemura H, Palomero-Gallagher N, Axer M, Gräßel D, Jorgensen MJ, Woods R, Zilles K. Anatomy of nerve fiber bundles at micrometer-resolution in the vervet monkey visual system. eLife 2020; 9:e55444. [PMID: 32844747 PMCID: PMC7532002 DOI: 10.7554/elife.55444] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 08/22/2020] [Indexed: 12/11/2022] Open
Abstract
Although the primate visual system has been extensively studied, detailed spatial organization of white matter fiber tracts carrying visual information between areas has not been fully established. This is mainly due to the large gap between tracer studies and diffusion-weighted MRI studies, which focus on specific axonal connections and macroscale organization of fiber tracts, respectively. Here we used 3D polarization light imaging (3D-PLI), which enables direct visualization of fiber tracts at micrometer resolution, to identify and visualize fiber tracts of the visual system, such as stratum sagittale, inferior longitudinal fascicle, vertical occipital fascicle, tapetum and dorsal occipital bundle in vervet monkey brains. Moreover, 3D-PLI data provide detailed information on cortical projections of these tracts, distinction between neighboring tracts, and novel short-range pathways. This work provides essential information for interpretation of functional and diffusion-weighted MRI data, as well as revision of wiring diagrams based upon observations in the vervet visual system.
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Affiliation(s)
- Hiromasa Takemura
- Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology, and Osaka UniversityOsakaJapan
- Graduate School of Frontier Biosciences, Osaka UniversityOsakaJapan
| | - Nicola Palomero-Gallagher
- Institute of Neuroscience and Medicine INM-1, Research Centre JülichJülichGermany
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH AachenAachenGermany
- C. & O. Vogt Institute for Brain Research, Heinrich-Heine-UniversityDüsseldorfGermany
| | - Markus Axer
- Institute of Neuroscience and Medicine INM-1, Research Centre JülichJülichGermany
| | - David Gräßel
- Institute of Neuroscience and Medicine INM-1, Research Centre JülichJülichGermany
| | - Matthew J Jorgensen
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of MedicineWinston-SalemUnited States
| | - Roger Woods
- Ahmanson-Lovelace Brain Mapping Center, Departments of Neurology and of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, UCLALos AngelesUnited States
| | - Karl Zilles
- Institute of Neuroscience and Medicine INM-1, Research Centre JülichJülichGermany
- JARA - Translational Brain MedicineAachenGermany
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21
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Kljajevic V, Erramuzpe A. Dorsal White Matter Integrity and Name Retrieval in Midlife. Curr Aging Sci 2020; 12:55-61. [PMID: 31589112 PMCID: PMC7059877 DOI: 10.2174/1874609812666190614110214] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 05/09/2019] [Accepted: 05/14/2019] [Indexed: 12/19/2022]
Abstract
Abstract: Background: Recent findings on retrieval of proper names in cognitively healthy middle-aged persons indicate that Tip-Of-The-Tongue (TOT) states occurring during proper name retrieval implicate inferior frontal (BA 44) and parietal (BA 40) cortical areas. Such findings give rise to the possibility that anatomical connectivity via dorsal white matter may be associated with difficulties in name retrieval in midlife. Objectives & Method: Using Diffusion Tensor Imaging, we examined in vivo microstructural properties of white matter in 72 cognitively healthy Middle-Aged (MA) and 59 Young Adults (YA), comparing their naming abilities as well as testing, for possible associations between dorsal white matter integrity and naming abilities in the MA group. Results: The MA group was better in retrieving correct names (U = 1525.5, p = .006), but they also retrieved more incorrect names than YA believing they had retrieved the correct ones (U = 1265.5, p < .001). Furthermore, despite being more familiar with the tested names than YA (U = 930, p < .001), MA experienced significantly more TOTs relative to YA (U = 1498.5, p = .004). Tract-based spatial statistics showed significant group differences in values of fractional anisotropy (FA), mean diffusivity, axial diffusivity, radial diffusivity, and mode of anisotropy in a range of white matter tracts. In the MA group, FA values in the right Superior Longitudinal Fasciculus (SLF) were positively correlated with “don’t know” scores (rs = .287, p = .014). Conclusion: The association of SLF integrity and name retrieval ability in midlife indicates a need to revisit the models of name retrieval that posit no role for dorsal white matter in proper name retrieval.
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Kurzawski JW, Mikellidou K, Morrone MC, Pestilli F. The visual white matter connecting human area prostriata and the thalamus is retinotopically organized. Brain Struct Funct 2020; 225:1839-1853. [PMID: 32535840 PMCID: PMC7321903 DOI: 10.1007/s00429-020-02096-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Accepted: 06/05/2020] [Indexed: 11/30/2022]
Abstract
The human visual system is capable of processing visual information from fovea to the far peripheral visual field. Recent fMRI studies have shown a full and detailed retinotopic map in area prostriata, located ventro-dorsally and anterior to the calcarine sulcus along the parieto-occipital sulcus with strong preference for peripheral and wide-field stimulation. Here, we report the anatomical pattern of white matter connections between area prostriata and the thalamus encompassing the lateral geniculate nucleus (LGN). To this end, we developed and utilized an automated pipeline comprising a series of Apps that run openly on the cloud computing platform brainlife.io to analyse 139 subjects of the Human Connectome Project (HCP). We observe a continuous and extended bundle of white matter fibers from which two subcomponents can be extracted: one passing ventrally parallel to the optic radiations (OR) and another passing dorsally circumventing the lateral ventricle. Interestingly, the loop travelling dorsally connects the thalamus with the central visual field representation of prostriata located anteriorly, while the other loop travelling more ventrally connects the LGN with the more peripheral visual field representation located posteriorly. We then analyse an additional cohort of 10 HCP subjects using a manual plane extraction method outside brainlife.io to study the relationship between the two extracted white matter subcomponents and eccentricity, myelin and cortical thickness gradients within prostriata. Our results are consistent with a retinotopic segregation recently demonstrated in the OR, connecting the LGN and V1 in humans and reveal for the first time a retinotopic segregation regarding the trajectory of a fiber bundle between the thalamus and an associative visual area.
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Affiliation(s)
| | - Kyriaki Mikellidou
- Department of Psychology and Center for Applied Neuroscience, University of Cyprus, Nicosia, Cyprus
| | - Maria Concetta Morrone
- IRCCS Stella Maris, Viale del Tirreno, 331, Pisa, Italy.,Department of Translational Research On New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Franco Pestilli
- Department of Psychological and Brain Sciences, Program in Neuroscience and Program in Cognitive Science, Indiana University, 1101 E 10th Street, Bloomington, IN, 47401, USA.
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Takeuchi H, Taki Y, Matsudaira I, Ikeda S, dos S. Kawata KH, Nouchi R, Sakaki K, Nakagawa S, Nozawa T, Yokota S, Araki T, Hanawa S, Ishibashi R, Yamazaki S, Kawashima R. Convergent creative thinking performance is associated with white matter structures: Evidence from a large sample study. Neuroimage 2020; 210:116577. [DOI: 10.1016/j.neuroimage.2020.116577] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 12/29/2019] [Accepted: 01/19/2020] [Indexed: 01/28/2023] Open
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24
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Li Y, Huang P, Guo T, Guan X, Gao T, Sheng W, Zhou C, Wu J, Song Z, Xuan M, Gu Q, Xu X, Yang Y, Zhang M. Brain structural correlates of depressive symptoms in Parkinson's disease patients at different disease stage. Psychiatry Res Neuroimaging 2020; 296:111029. [PMID: 31918166 DOI: 10.1016/j.pscychresns.2019.111029] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 12/26/2019] [Accepted: 12/27/2019] [Indexed: 12/13/2022]
Abstract
Parkinson's disease (PD) pathology may damage emotion circuit and cause depression. We investigated whether the neural basis of depressive symptoms varies at different PD stages. Seventy-six healthy controls (HC) and 98 PD patients (divided into early and middle stage groups) underwent brain magnetic resonance imaging (MRI) and general neuropsychological tests. Voxel-based morphometry and tract-based analysis were used to study the association between brain structural alterations and the Hamilton Depression Scale 17 Item (HAMD-17) scores in different groups. Comparing with HC group, PD patients showed widespread brain alterations in both gray and white matter. The HAMD-17 scores were positively correlated with GM volume in the right pre-central gyrus of early PD patients. In the middle stage group, HAMD-17 scores were positively correlated with GM volume in midbrain and right superior temporal gyrus, and negatively associated with GM volume in left anterior cingulate and superior frontal gyrus. In white matter analysis, The HAMD-17 scores were positively correlated with fractional anisotropy value of the bilateral inferior fronto-occipital fasciculus in the early stage group, but not the middle stage group. We concluded that the neural basis of depressive symptoms might be distinct in different stages of PD, implying the need for differential treatments.
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Affiliation(s)
- Yanxuan Li
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine 310000, Hangzhou, China; Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University 325000, Wenzhou, China
| | - Peiyu Huang
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine 310000, Hangzhou, China
| | - Tao Guo
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine 310000, Hangzhou, China
| | - Xiaojun Guan
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine 310000, Hangzhou, China
| | - Ting Gao
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine 310000, Hangzhou, China
| | - Wenshuang Sheng
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University 325000, Wenzhou, China
| | - Cheng Zhou
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine 310000, Hangzhou, China
| | - Jingjing Wu
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine 310000, Hangzhou, China
| | - Zhe Song
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No.88 Jiefang Road, Shangcheng District, Hangzhou 310009, China
| | - Min Xuan
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine 310000, Hangzhou, China
| | - Quanquan Gu
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine 310000, Hangzhou, China
| | - Xiaojun Xu
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine 310000, Hangzhou, China
| | - Yunjun Yang
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University 325000, Wenzhou, China.
| | - Minming Zhang
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine 310000, Hangzhou, China.
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25
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Maltais M, de Souto Barreto P, Perus L, Mangin JF, Grigis A, Chupin M, Bouyahia A, Gabelle A, Delrieux J, Rolland Y, Vellas B. Prospective Associations Between Diffusion Tensor Imaging Parameters and Frailty in Older Adults. J Am Geriatr Soc 2020; 68:1050-1055. [PMID: 31981370 DOI: 10.1111/jgs.16343] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 12/18/2019] [Accepted: 12/18/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Cross-sectional associations have been found between frail individuals and worse white matter (WM) integrity. However, the prospective association between WM integrity and frailty is still unclear. Our objectives were to measure associations between WM integrity using diffusion tensor imaging (DTI) and the 5-year worsening of frailty in community-dwelling older adults. DESIGN Secondary analysis of the randomized controlled Multidomain Alzheimer Preventive Trial (MAPT). SETTING Thirteen memory centers in France and Monaco between 2008 and 2011. PARTICIPANTS Participants (mean age = 74.7 ± 3.9 years) with no dementia at baseline who had functional magnetic resonance imaging performed as part of the MAPT study (n = 227). MEASUREMENTS Fractional anisotropy and mean diffusivity (MD), axial diffusivity (AxD), and radial diffusivity (RD) were acquired for 10 different brain regions. Frailty was assessed by the Fried frailty phenotype (score from 0 to 5, higher is worse) at up to seven time points for 5 years. Mixed effect ordinal logistic regression model was used to assess the prospective association between DTI parameters (independent variables) and frailty (dependent variable). All the analyses were adjusted for age, sex, baseline total intracranial volume, and the presence of one of the following cardiovascular risk factors (hypertension, diabetes, and/or hypercholesterolemia). RESULTS A statistically significant association was found between the RD, AxD, and MD for different brain regions (anterior limb of internal capsule, external capsule, posterior corona radiata, posterior thalamic radiation, superior corona radiata, superior frontal occipital fasciculus, and superior longitudinal fasciculus) and worsening of frailty over 5 years after adjusting for multiple comparisons. CONCLUSIONS This is the first study to show that WM integrity is associated with frailty in older adults. The mechanisms related to these results require further investigation. J Am Geriatr Soc 68:1050-1055, 2020.
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Affiliation(s)
- Mathieu Maltais
- Gérontopôle de Toulouse, Institut du Vieillissement, Centre Hospitalo-Universitaire de Toulouse, Toulouse, France
| | - Philipe de Souto Barreto
- Gérontopôle de Toulouse, Institut du Vieillissement, Centre Hospitalo-Universitaire de Toulouse, Toulouse, France.,France Faculté de Médecine, Unités mixtes de recherche (UMR) Institut national de la santé et de la recherche médicale (INSERM) 1027, University of Toulouse III, Toulouse, France
| | - Lisa Perus
- Memory Resources and Research Center, Montpellier University Hospital, INSERM U1061, University of Montpellier i-Site Montpellier Université d'Excellence (MUSE), Montpellier, France
| | - Jean-François Mangin
- CATI Multicenter Neuroimaging Platform, Neurospin, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Paris Saclay University, Gif sur Yvette, France
| | - Antoine Grigis
- CATI Multicenter Neuroimaging Platform, Neurospin, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Paris Saclay University, Gif sur Yvette, France
| | - Marie Chupin
- CATI Multicenter Neuroimaging Platform, Neurospin, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Paris Saclay University, Gif sur Yvette, France
| | - Ali Bouyahia
- CATI Multicenter Neuroimaging Platform, Neurospin, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Paris Saclay University, Gif sur Yvette, France
| | - Audrey Gabelle
- Memory Resources and Research Center, Montpellier University Hospital, INSERM U1061, University of Montpellier i-Site Montpellier Université d'Excellence (MUSE), Montpellier, France
| | - Julien Delrieux
- Gérontopôle de Toulouse, Institut du Vieillissement, Centre Hospitalo-Universitaire de Toulouse, Toulouse, France
| | - Yves Rolland
- Gérontopôle de Toulouse, Institut du Vieillissement, Centre Hospitalo-Universitaire de Toulouse, Toulouse, France.,France Faculté de Médecine, Unités mixtes de recherche (UMR) Institut national de la santé et de la recherche médicale (INSERM) 1027, University of Toulouse III, Toulouse, France
| | - Bruno Vellas
- Gérontopôle de Toulouse, Institut du Vieillissement, Centre Hospitalo-Universitaire de Toulouse, Toulouse, France.,France Faculté de Médecine, Unités mixtes de recherche (UMR) Institut national de la santé et de la recherche médicale (INSERM) 1027, University of Toulouse III, Toulouse, France
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26
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Liu X, Kinoshita M, Shinohara H, Hori O, Ozaki N, Nakada M. Does the superior fronto-occipital fascicle exist in the human brain? Fiber dissection and brain functional mapping in 90 patients with gliomas. NEUROIMAGE-CLINICAL 2020; 25:102192. [PMID: 32014826 PMCID: PMC6997620 DOI: 10.1016/j.nicl.2020.102192] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/19/2019] [Accepted: 01/20/2020] [Indexed: 01/04/2023]
Abstract
Existence of superior fronto-occipital fascicle (SFOF) in humans is controversial. Fiber dissection in vitro revealed Muratoff and Probst bundles but not SFOF. Direct functional mappings for SFOF were performed in 90 awake craniotomies. Eight of total 453 positive sites were located in the region believed to be SFOF. The anatomo-functional features suggest that SFOF might not exist in human brain.
The presence of the superior fronto-occipital fascicle (SFOF) has been reported in the Rhesus monkey; however, it is a subject of controversy in humans. The aim of this study is to identify the SFOF using both in vitro and in vivo anatomo-functional analyses. This study consisted of two approaches. First, one acallosal brain and 12 normal postmortem hemispheres (five left and seven right sides) were dissected under a microscope using Klingler's fiber dissection technique. We focused on the medial subcallosal area superior to the Muratoff bundle, which has been indicated as a principal target area of the SFOF in previous studies. Second, 90 patients underwent awake craniotomy for gliomas with direct electrical stimulations. Functional examinations for visual, ataxic, and cognitive tasks were performed and 453 positive mapping sites were investigated by voxel-based morphometry analysis to establish the functions of the SFOF. The corticostriatal fibers, or the Muratoff bundle, and thalamic peduncle fibers joined in the area of the caudate nucleus, making thalamic peduncle/ corticostriatal bundles, which ran antero-posteriorly in the anterior subcallosal area and radiated from the caudate superior margin in the posterior subcallosal area. However, no SFOF fiber bundle crossed perpendicular to the thalamic peduncle/ corticostriatal bundles in the posterior subcallosal area. In the acallosal hemispheres, Probst bundles were confirmed and the subcallosal areas did not show a specific organization different from the normal brain. Hence, we could not detect a long and continuous association fascicle connecting the frontal lobe and occipital or parietal lobe in the target areas. Furthermore, in the in vivo functional mappings of awake surgery and voxel-based morphometry analysis, eight positive points on the SFOF were selected from the total 453 positive points, but their functions were not related with visual processing and spatial awareness, as has been reported in previous studies. In conclusion, in the present study we attempted to investigate the existence of the SFOF using an anatomical and functional approach. According to our results, the SFOF may not exist in the human brain.
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Affiliation(s)
- Xiaoliang Liu
- Department of Neurosurgery, Kanazawa University,13-1 Takara-machi, Kanazawa, 920-8641 Japan; Department of Neurosurgery, The First Hospital of Jilin University, China
| | - Masashi Kinoshita
- Department of Neurosurgery, Kanazawa University,13-1 Takara-machi, Kanazawa, 920-8641 Japan.
| | | | - Osamu Hori
- Department of Neuroanatomy, Kanazawa University, Japan
| | - Noriyuki Ozaki
- Department of Functional anatomy, Kanazawa University, Japan
| | - Mitsutoshi Nakada
- Department of Neurosurgery, Kanazawa University,13-1 Takara-machi, Kanazawa, 920-8641 Japan
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27
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Creupelandt C, D'Hondt F, Maurage P. Towards a Dynamic Exploration of Vision, Cognition and Emotion in Alcohol-Use Disorders. Curr Neuropharmacol 2019; 17:492-506. [PMID: 30152285 PMCID: PMC6712295 DOI: 10.2174/1570159x16666180828100441] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 07/30/2018] [Accepted: 08/17/2018] [Indexed: 11/23/2022] Open
Abstract
Abstract: Visuoperceptive impairments are among the most frequently reported deficits in alcohol-use disorders, but only very few studies have investigated their origin and interactions with other categories of dysfunctions. Besides, these deficits have generally been interpreted in a linear bottom-up perspective, which appears very restrictive with respect to the new models of vision developed in healthy populations. Indeed, new theories highlight the predictive nature of the visual system and demonstrate that it interacts with higher-level cognitive functions to generate top-down predictions. These models nota-bly posit that a fast but coarse visual analysis involving magnocellular pathways helps to compute heuristic guesses regard-ing the identity and affective value of inputs, which are used to facilitate conscious visual recognition. Building on these new proposals, the present review stresses the need to reconsider visual deficits in alcohol-use disorders as they might have cru-cial significance for core features of the pathology, such as attentional bias, loss of inhibitory control and emotion decoding impairments. Centrally, we suggest that individuals with severe alcohol-use disorders could present with magnocellular dam-age and we defend a dynamic explanation of the deficits. Rather than being restricted to high-level processes, deficits could start at early visual stages and then extend and potentially intensify during following steps due to reduced cerebral connec-tivity and dysfunctional cognitive/emotional regions. A new research agenda is specifically provided to test these hypotheses.
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Affiliation(s)
- Coralie Creupelandt
- Laboratory for Experimental Psychopathology, Psychological Science Research Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium.,SCALab-Sciences Cognitives et Sciences Affectives, CNRS, UMR 9193, Université de Lille, Lille, France
| | - Fabien D'Hondt
- SCALab-Sciences Cognitives et Sciences Affectives, CNRS, UMR 9193, Université de Lille, Lille, France.,CHU Lille, Clinique de Psychiatrie, CURE, Lille, France
| | - Pierre Maurage
- Laboratory for Experimental Psychopathology, Psychological Science Research Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
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28
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Siuda-Krzywicka K, Witzel C, Chabani E, Taga M, Coste C, Cools N, Ferrieux S, Cohen L, Seidel Malkinson T, Bartolomeo P. Color Categorization Independent of Color Naming. Cell Rep 2019; 28:2471-2479.e5. [DOI: 10.1016/j.celrep.2019.08.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/17/2019] [Accepted: 07/30/2019] [Indexed: 01/21/2023] Open
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29
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Puglisi G, Sciortino T, Rossi M, Leonetti A, Fornia L, Conti Nibali M, Casarotti A, Pessina F, Riva M, Cerri G, Bello L. Preserving executive functions in nondominant frontal lobe glioma surgery: an intraoperative tool. J Neurosurg 2019; 131:474-480. [PMID: 30265193 DOI: 10.3171/2018.4.jns18393] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 04/23/2018] [Indexed: 01/17/2023]
Abstract
OBJECTIVE The goal of surgery for gliomas is maximal tumor removal while preserving the patient's full functional integrity. At present during frontal tumor removal, this goal is mostly achieved, although the risk of impairing the executive functions (EFs), and thus the quality of life, remains significant. The authors investigated the accuracy of an intraoperative version of the Stroop task (iST), adapted for intraoperative mapping, to detect EF-related brain sites by evaluating the impact of the iST brain mapping on preserving functional integrity following a maximal tumor resection. METHODS Forty-five patients with nondominant frontal gliomas underwent awake surgery; brain mapping was used to establish the functional boundaries for the resection. In 18 patients language, praxis, and motor functions, but not EFs (control group), were mapped intraoperatively at the cortical-subcortical level. In 27 patients, in addition to language, praxis, and motor functions, EFs were mapped with the iST at the cortical-subcortical level (Stroop group). In both groups the EF performance was evaluated preoperatively, at 7 days and 3 months after surgery. RESULTS The iST was successfully administered in all patients. Consistent interferences, such as color-word inversion/latency, were obtained by stimulating precise white matter sites below the inferior and middle frontal gyri, anterior to the insula and over the putamen, and these were used to establish the posterior functional limit of the resection. Procedures implemented with iST dramatically reduced the EF deficits at 3 months. The EOR was similar in Stroop and control groups. CONCLUSIONS Brain mapping with the iST allows identification and preservation of the frontal lobe structures involved in inhibition of automatic responses, reducing the incidence of postoperative EF deficits and enhancing the further posterior and inferior margin of tumor resection.
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Affiliation(s)
- Guglielmo Puglisi
- 2Laboratory of Motor Control, Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, and Humanitas Research Hospital, IRCCS, Milano, Italy
- 3Neurosurgical Oncology Unit, Humanitas Research Hospital, IRCCS, Milano, Italy; and
| | - Tommaso Sciortino
- 1Neurosurgical Oncology Unit, Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, and Humanitas Research Hospital, IRCCS, Milano, Italy
| | - Marco Rossi
- 1Neurosurgical Oncology Unit, Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, and Humanitas Research Hospital, IRCCS, Milano, Italy
| | - Antonella Leonetti
- 2Laboratory of Motor Control, Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, and Humanitas Research Hospital, IRCCS, Milano, Italy
- 3Neurosurgical Oncology Unit, Humanitas Research Hospital, IRCCS, Milano, Italy; and
| | - Luca Fornia
- 2Laboratory of Motor Control, Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, and Humanitas Research Hospital, IRCCS, Milano, Italy
| | - Marco Conti Nibali
- 1Neurosurgical Oncology Unit, Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, and Humanitas Research Hospital, IRCCS, Milano, Italy
| | - Alessandra Casarotti
- 3Neurosurgical Oncology Unit, Humanitas Research Hospital, IRCCS, Milano, Italy; and
| | - Federico Pessina
- 3Neurosurgical Oncology Unit, Humanitas Research Hospital, IRCCS, Milano, Italy; and
| | - Marco Riva
- 3Neurosurgical Oncology Unit, Humanitas Research Hospital, IRCCS, Milano, Italy; and
- 4Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, and Humanitas Research Hospital, IRCCS, Milano, Italy
| | - Gabriella Cerri
- 2Laboratory of Motor Control, Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, and Humanitas Research Hospital, IRCCS, Milano, Italy
| | - Lorenzo Bello
- 1Neurosurgical Oncology Unit, Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, and Humanitas Research Hospital, IRCCS, Milano, Italy
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30
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Colás I, Chica AB, Ródenas E, Busquier H, Olivares G, Triviño M. Conscious perception in patients with prefrontal damage. Neuropsychologia 2019; 129:284-293. [DOI: 10.1016/j.neuropsychologia.2019.03.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 01/25/2019] [Accepted: 03/06/2019] [Indexed: 11/24/2022]
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31
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Mancini M, Vos SB, Vakharia VN, O'Keeffe AG, Trimmel K, Barkhof F, Dorfer C, Soman S, Winston GP, Wu C, Duncan JS, Sparks R, Ourselin S. Automated fiber tract reconstruction for surgery planning: Extensive validation in language-related white matter tracts. Neuroimage Clin 2019; 23:101883. [PMID: 31163386 PMCID: PMC6545442 DOI: 10.1016/j.nicl.2019.101883] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/18/2019] [Accepted: 05/25/2019] [Indexed: 12/30/2022]
Abstract
Diffusion MRI and tractography hold great potential for surgery planning, especially to preserve eloquent white matter during resections. However, fiber tract reconstruction requires an expert with detailed understanding of neuroanatomy. Several automated approaches have been proposed, using different strategies to reconstruct the white matter tracts in a supervised fashion. However, validation is often limited to comparison with manual delineation by overlap-based measures, which is limited in characterizing morphological and topological differences. In this work, we set up a fully automated pipeline based on anatomical criteria that does not require manual intervention, taking advantage of atlas-based criteria and advanced acquisition protocols available on clinical-grade MRI scanners. Then, we extensively validated it on epilepsy patients with specific focus on language-related bundles. The validation procedure encompasses different approaches, including simple overlap with manual segmentations from two experts, feasibility ratings from external multiple clinical raters and relation with task-based functional MRI. Overall, our results demonstrate good quantitative agreement between automated and manual segmentation, in most cases better performances of the proposed method in qualitative terms, and meaningful relationships with task-based fMRI. In addition, we observed significant differences between experts in terms of both manual segmentation and external ratings. These results offer important insights on how different levels of validation complement each other, supporting the idea that overlap-based measures, although quantitative, do not offer a full perspective on the similarities and differences between automated and manual methods.
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Affiliation(s)
- Matteo Mancini
- Centre for Medical Image Computing, University College London, London, United Kingdom.
| | - Sjoerd B Vos
- Centre for Medical Image Computing, University College London, London, United Kingdom; Epilepsy Society MRI Unit, Chalfont St Peter, United Kingdom
| | - Vejay N Vakharia
- Department of Clinical and Experimental Epilepsy, University College London, London, United Kingdom; National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
| | - Aidan G O'Keeffe
- Department of Statistical Science, University College London, London, UK
| | - Karin Trimmel
- Epilepsy Society MRI Unit, Chalfont St Peter, United Kingdom; Department of Clinical and Experimental Epilepsy, University College London, London, United Kingdom; National Hospital for Neurology and Neurosurgery, Queen Square, London, UK; Department of Neurology, Medical University of Vienna, Vienna, Austria
| | - Frederik Barkhof
- Centre for Medical Image Computing, University College London, London, United Kingdom; Brain Repair and Rehabilitation, University College London, London, UK; Radiology & Nuclear Medicine, VU University Medical Centre, Amsterdam, Netherlands
| | - Christian Dorfer
- Department of Neurosurgery, Vienna General Hospital, Medical University of Vienna, Vienna, Austria
| | - Salil Soman
- Harvard Medical School, Beth Israel Deaconess Medical Center, Department of Radiology, Boston, MA 00215, United States
| | - Gavin P Winston
- Epilepsy Society MRI Unit, Chalfont St Peter, United Kingdom; Department of Clinical and Experimental Epilepsy, University College London, London, United Kingdom; Department of Medicine, Division of Neurology, Queen's University, Kingston, Ontario, Canada
| | - Chengyuan Wu
- Department of Neurosurgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - John S Duncan
- Epilepsy Society MRI Unit, Chalfont St Peter, United Kingdom; Department of Clinical and Experimental Epilepsy, University College London, London, United Kingdom; National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
| | - Rachel Sparks
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, UK
| | - Sebastien Ourselin
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, UK
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32
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Bajada CJ, Banks B, Lambon Ralph MA, Cloutman LL. Reconnecting with Joseph and Augusta Dejerine: 100 years on. Brain 2019; 140:2752-2759. [PMID: 28969389 PMCID: PMC5841156 DOI: 10.1093/brain/awx225] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 07/26/2017] [Indexed: 11/14/2022] Open
Affiliation(s)
- Claude J Bajada
- Neuroscience and Aphasia Research Unit (NARU), Division of Neuroscience and Experimental Psychology, School of Biological Sciences, The University of Manchester, UK
| | - Briony Banks
- Neuroscience and Aphasia Research Unit (NARU), Division of Neuroscience and Experimental Psychology, School of Biological Sciences, The University of Manchester, UK
| | - Matthew A Lambon Ralph
- Neuroscience and Aphasia Research Unit (NARU), Division of Neuroscience and Experimental Psychology, School of Biological Sciences, The University of Manchester, UK
| | - Lauren L Cloutman
- Neuroscience and Aphasia Research Unit (NARU), Division of Neuroscience and Experimental Psychology, School of Biological Sciences, The University of Manchester, UK
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33
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Burchi E, Makris N, Lee MR, Pallanti S, Hollander E. Compulsivity in Alcohol Use Disorder and Obsessive Compulsive Disorder: Implications for Neuromodulation. Front Behav Neurosci 2019; 13:70. [PMID: 31139059 PMCID: PMC6470293 DOI: 10.3389/fnbeh.2019.00070] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 03/22/2019] [Indexed: 01/22/2023] Open
Abstract
Alcohol use Disorder (AUD) is one of the leading causes of morbidity and mortality worldwide. The progression of the disorder is associated with the development of compulsive alcohol use, which in turn contributes to the high relapse rate and poor longer term functioning reported in most patients, even with treatment. While the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) defines AUD by a cluster of symptoms, parsing its heterogeneous phenotype by domains of behavior such as compulsivity may be a critical step to improve outcomes of this condition. Still, neurobiological underpinnings of compulsivity need to be fully elucidated in AUD in order to better design targeted treatment strategies. In this manuscript, we review and discuss findings supporting common mechanisms between AUD and OCD, dissecting the construct of compulsivity and focusing specifically on characteristic disruptions in habit learning and cognitive control in the two disorders. Finally, neuromodulatory interventions are proposed as a probe to test compulsivity as key pathophysiologic feature of AUD, and as a potential therapy for the subgroup of individuals with compulsive alcohol use, i.e., the more resistant stage of the disorder. This transdiagnostic approach may help to destigmatize the disorder, and suggest potential treatment targets across different conditions.
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Affiliation(s)
- Elisabetta Burchi
- Department of Psychiatry and Behavioral Sciences, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY, United States.,Department of Health Sciences, University of Florence, Florence, Italy
| | - Nikolaos Makris
- Center for Morphometric Analysis, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States.,Psychiatry Neuroimaging Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Mary R Lee
- Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism and National Institute on Drug Abuse, Bethesda, MD, United States
| | - Stefano Pallanti
- Department of Psychiatry and Behavioral Sciences, Stanford University Medical Center, Stanford, CA, United States
| | - Eric Hollander
- Department of Psychiatry and Behavioral Sciences, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY, United States
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34
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Yan X, Wang Y, Xu L, Liu Y, Song S, Ding K, Zhou Y, Jiang T, Lin X. Altered Functional Connectivity of the Primary Visual Cortex in Adult Comitant Strabismus: A Resting-State Functional MRI Study. Curr Eye Res 2018; 44:316-323. [PMID: 30375900 DOI: 10.1080/02713683.2018.1540642] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
PURPOSE The aim of this study was to examine the functional connectivity between the primary visual cortex and other cortical areas during rest in normal subjects and patients with comitant strabismus using functional magnetic resonance imaging (fMRI). METHODS A prospective, observational study was conducted. Ten patients with comitant exotropia and eleven matched healthy subjects underwent resting-state fMRI with their eyes closed. Resting-state fMRI was performed using a 3.0 T MR scanner. The primary visual cortex was subdivided into anterior and posterior subdivisions. The resting-state functional connectivities within the primary visual cortex and between the primary visual cortex and other cortical areas were calculated for each group and compared between the strabismic and normal control groups. fMRI data were analyzed using Statistical Parametric Mapping software and Analysis of Functional NeuroImages software. RESULTS Compared with the normal controls, patients with comitant strabismus had increased functional connectivity between the posterior primary visual cortex and other cortical areas, especially the visual cortex [Brodmann area 19 (BA19)] and other oculomotor regions, such as the frontal eye field (BA6). CONCLUSIONS The fMRI results suggest that ongoing and permanent cortical changes occur in patients with comitant strabismus. Disrupted brain functional connectivities are associated with abnormal eye movement and loss of stereopsis. Our study provides a neurological basis for understanding the pathophysiology of comitant strabismus, which may prompt new areas of research to more precisely define this basis and extend these findings to enhance diagnosis and treatment.
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Affiliation(s)
- Xiaohe Yan
- b Shenzhen Key Laboratory of Ophthalmology , Shenzhen Eye Hospital , Jinan University, Shenzhen , China.,c School of Optometry , Shenzhen University , Shenzhen , China
| | - Yun Wang
- d The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders , Beijing Anding Hospital , Capital Medical University, Beijing , China.,e Advanced Innovation Center for Human Brain Protection , Capital Medical University , Beijing , China.,f Key Laboratory of Behavioral Science & Magnetic Resonance Imaging Research Center , Institute of Psychology, Chinese Academy of Sciences , Beijing , China
| | - Lijuan Xu
- g Brainnetome Center , Institute of Automation, Chinese Academy of Sciences , Beijing , China.,h National Laboratory of Pattern Recognition , Institute of Automation, Chinese Academy of Sciences , Beijing , China
| | - Yong Liu
- g Brainnetome Center , Institute of Automation, Chinese Academy of Sciences , Beijing , China.,h National Laboratory of Pattern Recognition , Institute of Automation, Chinese Academy of Sciences , Beijing , China
| | - Shaojie Song
- a State Key Laboratory of Ophthalmology , Zhongshan Ophthalmic Center, Sun Yat-sen University , Guangzhou , China
| | - Kun Ding
- a State Key Laboratory of Ophthalmology , Zhongshan Ophthalmic Center, Sun Yat-sen University , Guangzhou , China
| | - Yuan Zhou
- f Key Laboratory of Behavioral Science & Magnetic Resonance Imaging Research Center , Institute of Psychology, Chinese Academy of Sciences , Beijing , China
| | - Tianzi Jiang
- g Brainnetome Center , Institute of Automation, Chinese Academy of Sciences , Beijing , China.,h National Laboratory of Pattern Recognition , Institute of Automation, Chinese Academy of Sciences , Beijing , China
| | - Xiaoming Lin
- a State Key Laboratory of Ophthalmology , Zhongshan Ophthalmic Center, Sun Yat-sen University , Guangzhou , China
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35
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Mandonnet E, Sarubbo S, Petit L. The Nomenclature of Human White Matter Association Pathways: Proposal for a Systematic Taxonomic Anatomical Classification. Front Neuroanat 2018; 12:94. [PMID: 30459566 PMCID: PMC6232419 DOI: 10.3389/fnana.2018.00094] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 10/17/2018] [Indexed: 12/27/2022] Open
Abstract
The heterogeneity and complexity of white matter (WM) pathways of the human brain were discretely described by pioneers such as Willis, Stenon, Malpighi, Vieussens and Vicq d'Azyr up to the beginning of the 19th century. Subsequently, novel approaches to the gross dissection of brain internal structures have led to a new understanding of WM organization, notably due to the works of Reil, Gall and Burdach highlighting the fascicular organization of WM. Meynert then proposed a definitive tripartite organization in association, commissural and projection WM pathways. The enduring anatomical work of Dejerine at the turn of the 20th century describing WM pathways in detail has been the paramount authority on this topic (including its terminology) for over a century, enriched sporadically by studies based on blunt Klingler dissection. Currently, diffusion-weighted magnetic resonance imaging (DWI) is used to reveal the WM fiber tracts of the human brain in vivo by measuring the diffusion of water molecules, especially along axons. It is then possible by tractography to reconstitute the WM pathways of the human brain step by step at an unprecedented level of precision in large cohorts. However, tractography algorithms, although powerful, still face the complexity of the organization of WM pathways, and there is a crucial need to benefit from the exact definitions of the trajectories and endings of all WM fascicles. Beyond such definitions, the emergence of DWI-based tractography has mostly revealed strong heterogeneity in naming the different bundles, especially the long-range association pathways. This review addresses the various terminologies known for the WM association bundles, aiming to describe the rules of arrangements followed by these bundles and to propose a new nomenclature based on the structural wiring diagram of the human brain.
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Affiliation(s)
| | - Silvio Sarubbo
- Division of Neurosurgery, Structural and Functional Connectivity Lab, Azienda Provinciale per i Servizi Sanitari (APSS), Trento, Italy
| | - Laurent Petit
- Groupe d’Imagerie Neurofonctionnelle, Institut des Maladies Neurodégénératives—UMR 5293, CNRS, CEA University of Bordeaux, Bordeaux, France
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36
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Rossi A, Moura L, Miranda M, Muszkat M, Mello C, Bueno O. Latent class analysis of attention and white matter correlation in children with attention-deficit/hyperactivity disorder. Braz J Med Biol Res 2018; 51:e7653. [PMID: 30304132 PMCID: PMC6172928 DOI: 10.1590/1414-431x20187653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 07/30/2018] [Indexed: 02/08/2023] Open
Abstract
This study aimed to explore attentional patterns among children with inattentive attention-deficit/hyperactivity disorder (ADHD-I) and children with typical development (TD), using a latent class analysis (LCA). Patterns of brain connectivity were also explored. The sample comprised 29 ADHD-I and 29 TD matched children. An LCA was conducted to reclassify subjects according to their attentional performance, considering cognitive measures of attention and behavioral symptoms, regardless of group of origin. The new clusters were then compared in respect to brain white matter measurements (extracted from diffusion tensor imaging). Participants were rearranged in 2 new latent classes, according to their performance in an attention task and the results of behavioral scales, resulting in groups with more homogeneous attentional profiles. A comparison of the 2 new classes using the white matter measurements revealed increased fractional anisotropy in the left inferior fronto-occipital fasciculus and left inferior longitudinal fasciculus for the class composed by participants with a higher risk of attentional problems. The findings indicated that it was possible to observe variability regarding neuropsychological profile, accompanied by underpinning neurobiological differences, even among individuals with the same disorder subtype - inattentive ADHD. This specific data-driven clustering analysis may help to enhance understanding of the pathophysiology of the disorder's phenotypes.
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Affiliation(s)
- A.S.U. Rossi
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil
| | - L.M. Moura
- Centro de Matemática, Computação e Cognição, Universidade Federal do ABC, SP, Brasil
| | - M.C. Miranda
- Departamento de Psicologia, Curso de Pós-graduação em Psicossomática, Universidade Ibirapuera, São Paulo, SP, Brasil
| | - M. Muszkat
- Programa de Educação e Saúde da Infância e Adolescência, Universidade Federal de São Paulo, Guarulhos, SP, Brasil
| | - C.B. Mello
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil
| | - O.F.A. Bueno
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil
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37
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Dalla Barba G, Brazzarola M, Barbera C, Marangoni S, Causin F, Bartolomeo P, Thiebaut de Schotten M. Different patterns of confabulation in left visuo-spatial neglect. Exp Brain Res 2018; 236:2037-2046. [PMID: 29744565 DOI: 10.1007/s00221-018-5281-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 05/03/2018] [Indexed: 01/06/2023]
Abstract
Confabulating patients produce statements and actions that are unintentionally incongruous to their history, background, present and future situation. Here we present the very unusual case of a patient with right hemisphere damage and signs of left visual neglect, who, when presented with visual stimuli, confabulated both for consciously undetected and for consciously detected left-sided details. Advanced anatomical investigation suggested a disconnection between the parietal and the temporal lobes in the right hemisphere. A disconnection between the ventral cortical visual stream and the dorsal fronto-parietal networks in the right hemisphere may contribute to confabulatory behaviour by restricting processing of left-sided stimuli to pre-conscious stages in the ventral visual stream.
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Affiliation(s)
- Gianfranco Dalla Barba
- INSERM, Paris, France.,Institut de la Mémoire et de la Maladie d'Alzheimer (IM2A), Département de Neurologie, Hôpital de la Pitié-Salpêtrière, Sorbonne Université, Paris, France.,Dipartimento di Scienze della Vita, Università degli Studi di Trieste, Trieste, Italy.,Centro Medico di Foniatria, Unità Operativa Complessa di Riabilitazione Neurocognitiva, Padova, Italy
| | - Marta Brazzarola
- Centro Medico di Foniatria, Unità Operativa Complessa di Riabilitazione Neurocognitiva, Padova, Italy
| | - Claudia Barbera
- Centro Medico di Foniatria, Unità Operativa Complessa di Riabilitazione Neurocognitiva, Padova, Italy
| | - Sara Marangoni
- Centro Medico di Foniatria, Unità Operativa Complessa di Riabilitazione Neurocognitiva, Padova, Italy
| | - Francesco Causin
- Azienda Ospedaliera di Padova, Unità Operativa Complessa di Neuroradiologia, Padova, Italy
| | - Paolo Bartolomeo
- Inserm U 1127, CNRS UMR 7225, Sorbonne Université, Institut du Cerveau et de la Moelle épinière, ICM, Hôpital de la Pitié-Salpêtrière, 47 Boulevard de l'Hôpital, CS 21414, 75646, Paris Cedex 13, France.
| | - Michel Thiebaut de Schotten
- Inserm U 1127, CNRS UMR 7225, Sorbonne Université, Institut du Cerveau et de la Moelle épinière, ICM, Hôpital de la Pitié-Salpêtrière, 47 Boulevard de l'Hôpital, CS 21414, 75646, Paris Cedex 13, France.,Brain Connectivity Behaviour group, Sorbonne Universities, Paris, France.,Groupe d'Imagerie Neurofonctionnelle, Institut des Maladies Neurodégénératives-UMR 5293, CNRS, CEA University of Bordeaux, Bordeaux, France
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38
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Ghaziri J, Tucholka A, Girard G, Houde JC, Boucher O, Gilbert G, Descoteaux M, Lippé S, Rainville P, Nguyen DK. The Corticocortical Structural Connectivity of the Human Insula. Cereb Cortex 2018; 27:1216-1228. [PMID: 26683170 DOI: 10.1093/cercor/bhv308] [Citation(s) in RCA: 177] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The insula is a complex structure involved in a wide range of functions. Tracing studies on nonhuman primates reveal a wide array of cortical connections in the frontal (orbitofrontal and prefrontal cortices, cingulate areas and supplementary motor area), parietal (primary and secondary somatosensory cortices) and temporal (temporal pole, auditory, prorhinal and entorhinal cortices) lobes. However, recent human tractography studies have not observed connections between the insula and the cingulate cortices, although these structures are thought to be functionally intimately connected. In this work, we try to unravel the structural connectivity between these regions and other known functionally connected structures, benefiting from a higher number of subjects and the latest state-of-the-art high angular resolution diffusion imaging (HARDI) tractography algorithms with anatomical priors. By performing an HARDI tractography analysis on 46 young normal adults, our study reveals a wide array of connections between the insula and the frontal, temporal, parietal and occipital lobes as well as limbic regions, with a rostro-caudal organization in line with tracing studies in macaques. Notably, we reveal for the first time in humans a clear structural connectivity between the insula and the cingulate, parahippocampal, supramarginal and angular gyri as well as the precuneus and occipital regions.
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Affiliation(s)
- Jimmy Ghaziri
- Département de Neurosciences.,Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montréal, QC, Canada
| | - Alan Tucholka
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montréal, QC, Canada.,BarcelonaBeta Brain Research Center, Pasqual Maragall Foundation, Barcelona, Spain.,Département de Radiologie, CHUM hôpital Notre-Dame, Montréal, QC, Canada.,Centre de recherche du CHU Hôpital Sainte-Justine, Montréal, QC, Canada
| | - Gabriel Girard
- Sherbrooke Connectivity Imaging Lab (SCIL), Computer Science department, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Jean-Christophe Houde
- Sherbrooke Connectivity Imaging Lab (SCIL), Computer Science department, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Olivier Boucher
- Centre de recherche en neuropsychologie et cognition, Département de Psychologie.,Centre de recherche du CHU Hôpital Sainte-Justine, Montréal, QC, Canada
| | | | - Maxime Descoteaux
- Sherbrooke Connectivity Imaging Lab (SCIL), Computer Science department, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Sarah Lippé
- Centre de recherche en neuropsychologie et cognition, Département de Psychologie.,Centre de recherche du CHU Hôpital Sainte-Justine, Montréal, QC, Canada
| | - Pierre Rainville
- Centre de recherche en neuropsychologie et cognition, Département de Psychologie.,Département de Stomatologie, Université de Montréal, Montréal, QC, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada
| | - Dang Khoa Nguyen
- Département de Neurosciences.,Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montréal, QC, Canada.,Service de Neurologie, CHUM Hôpital Notre-Dame, Montréal, QC, Canada
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39
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Diffusion tensor imaging and tractography of the white matter in normal aging: The rate-of-change differs between segments within tracts. Magn Reson Imaging 2018; 45:113-119. [DOI: 10.1016/j.mri.2017.03.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 02/21/2017] [Accepted: 03/25/2017] [Indexed: 12/13/2022]
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40
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Vassal F, Pommier B, Sontheimer A, Lemaire JJ. Inter-individual variations and hemispheric asymmetries in structural connectivity patterns of the inferior fronto-occipital fascicle: a diffusion tensor imaging tractography study. Surg Radiol Anat 2017; 40:129-137. [PMID: 29285657 DOI: 10.1007/s00276-017-1966-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 12/20/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE Precise knowledge of the structural connectivity of white matter fascicles could yield new insights into function and is important for neurosurgical planning. Therefore, we aimed to provide a detailed map of the cortical terminations of the inferior fronto-occipital fascicle (IFOF), with special emphasis on putative inter-individual variations and hemispheric asymmetries. METHODS Deterministic diffusion tensor imaging-based tractography was used to perform virtual dissection of the IFOF in 20 healthy subjects. The IFOF was probed from a single seed region of interest placed within the external/extreme capsule, i.e. the white matter region of "obligatory passage" along the known path of the IFOF. This enabled to reconstruct all the fibers belonging to the IFOF and to provide the complete map of their cortical terminations. RESULTS We observed widespread projections over a total of 11 cortical territories within the occipital, parietal, temporal and frontal lobes. Importantly, compared to previous studies we consistently found some inter-individual variability with several distinct patterns connecting subsets of the 11 cortical territories, and tangible differences between the two hemispheres. IFOF terminations within the superior parietal lobule were rightward lateralized, whereas terminations within the inferior frontal gyrus were leftward lateralized. CONCLUSIONS Our results provide a clinically relevant map of IFOF's cortical terminations, including intra- and inter-individual variations. Right-left differences in connectivity patterns might be related to known functional asymmetries in the human brain, and reinforce the general evidence that the IFOF likely supports distinct clinical features and functional roles according to the (affected) hemisphere, such as language and spatial attention.
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Affiliation(s)
- François Vassal
- IGCNC (Image-Guided Clinical Neuroscience and Connectomics), CNRS, Sigma, Institut Pascal, UMR 6602, Université d'Auvergne, Clermont-Ferrand, France. .,Service de Neurochirurgie, Hôpital Nord, Centre Hospitalier Universitaire, Saint-Etienne, France. .,Department of Neurosurgery, University Hospital of Saint-Etienne, Saint-Etienne, France.
| | - Benjamin Pommier
- Service de Neurochirurgie, Hôpital Nord, Centre Hospitalier Universitaire, Saint-Etienne, France
| | - Anna Sontheimer
- IGCNC (Image-Guided Clinical Neuroscience and Connectomics), CNRS, Sigma, Institut Pascal, UMR 6602, Université d'Auvergne, Clermont-Ferrand, France.,Service de Neurochirurgie, Hôpital Gabriel Montpied, Centre Hospitalier Universitaire, Clermont-Ferrand, France
| | - Jean-Jacques Lemaire
- IGCNC (Image-Guided Clinical Neuroscience and Connectomics), CNRS, Sigma, Institut Pascal, UMR 6602, Université d'Auvergne, Clermont-Ferrand, France.,Service de Neurochirurgie, Hôpital Gabriel Montpied, Centre Hospitalier Universitaire, Clermont-Ferrand, France
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41
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Bao Y, Wang Y, Wang W, Wang Y. The Superior Fronto-Occipital Fasciculus in the Human Brain Revealed by Diffusion Spectrum Imaging Tractography: An Anatomical Reality or a Methodological Artifact? Front Neuroanat 2017; 11:119. [PMID: 29321729 PMCID: PMC5733543 DOI: 10.3389/fnana.2017.00119] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Accepted: 11/27/2017] [Indexed: 12/23/2022] Open
Abstract
The existence of the superior fronto-occipital fasciculus (SFOF) in the human brain remains controversial. The aim of the present study was to clarify the existence, course, and terminations of the SFOF. High angular diffusion spectrum imaging (DSI) analysis was performed on six healthy adults and on a template of 842 subjects from the Human Connectome Project. To verify tractography results, we performed fiber microdissections of four post-mortem human brains. Based on DSI tractography, we reconstructed the SFOF in the subjects and the template from the Human Connectome Project that originated from the rostral and medial parts of the superior and middle frontal gyri. By tractography, we found that the fibers formed a compact fascicle at the level of the anterior horn of the lateral ventricle coursing above the head of caudate nucleus, medial to the corona radiate and under the corpus callosum (CC), and terminated at the parietal region via the lower part of the caudate nucleus. We consider that this fiber bundle observed by tractography is the SFOF, although it terminates mainly at the parietal region, rather than occipital lobe. By contrast, we were unable to identify a fiber bundle corresponding to the SFOF in our fiber dissection study. Although we did not provide definite evidence of the SFOF in the human brain, these findings may be useful for future studies in this field.
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Affiliation(s)
- Yue Bao
- Department of Neurosurgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yong Wang
- Department of Neurosurgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Wei Wang
- Department of Neurosurgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yibao Wang
- Department of Neurosurgery, The First Affiliated Hospital of China Medical University, Shenyang, China
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42
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Rice LJ, Lagopoulos J, Brammer M, Einfeld SL. Microstructural white matter tract alteration in Prader-Willi syndrome: A diffusion tensor imaging study. AMERICAN JOURNAL OF MEDICAL GENETICS PART C-SEMINARS IN MEDICAL GENETICS 2017; 175:362-367. [DOI: 10.1002/ajmg.c.31572] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 06/27/2017] [Accepted: 07/05/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Lauren J. Rice
- Brain and Mind Centre; University of Sydney; Camperdown Australia
| | - Jim Lagopoulos
- Brain and Mind Centre; University of Sydney; Camperdown Australia
- Queensland Mind and Neuroscience Thompson Institute; University of the Sunshine Coast; Maroochydore DC Australia
| | - Michael Brammer
- Brain and Mind Centre; University of Sydney; Camperdown Australia
- Department of Neuroimaging; Institute of Psychiatry; King's College London; London UK
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43
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Structural connectivity in spatial attention network: reconstruction from left hemispatial neglect. Brain Imaging Behav 2017; 12:309-323. [DOI: 10.1007/s11682-017-9698-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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44
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Functional connectivity between prefrontal and parietal cortex drives visuo-spatial attention shifts. Neuropsychologia 2017; 99:81-91. [PMID: 28254653 PMCID: PMC5415819 DOI: 10.1016/j.neuropsychologia.2017.02.024] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 12/13/2016] [Accepted: 02/26/2017] [Indexed: 11/20/2022]
Abstract
It is well established that the frontal eye-fields (FEF) in the dorsal attention network (DAN) guide top-down selective attention. In addition, converging evidence implies a causal role for the FEF in attention shifting, which is also known to recruit the ventral attention network (VAN) and fronto-striatal regions. To investigate the causal influence of the FEF as (part of) a central hub between these networks, we applied thetaburst transcranial magnetic stimulation (TBS) off-line, combined with functional magnetic resonance (fMRI) during a cued visuo-spatial attention shifting paradigm. We found that TBS over the right FEF impaired performance on a visual discrimination task in both hemifields following attention shifts, while only left hemifield performance was affected when participants were cued to maintain the focus of attention. These effects recovered ca. 20 min post stimulation. Furthermore, particularly following attention shifts, TBS suppressed the neural signal in bilateral FEF, right inferior and superior parietal lobule (IPL/SPL) and bilateral supramarginal gyri (SMG). Immediately post stimulation, functional connectivity was impaired between right FEF and right SMG as well as right putamen. Importantly, the extent of decreased connectivity between right FEF and right SMG correlated with behavioural impairment following attention shifts. The main finding of this study demonstrates that influences from right FEF on SMG in the ventral attention network causally underly attention shifts, presumably by enabling disengagement from the current focus of attention. Thetaburst stimulation to the right FEF temporarily impairs bilateral attention shifts. Lateralised behavioural deficits in the contralateral hemifield are observed when cued to maintain attention. These effects recover ca. 20 min post stimulation. During shifts, neural activity is suppressed following right FEF TBS in the dorsal attention network and supramarginal gyri. Influences from right FEF to SMG causally underlie attention shifts, presumably by enabling disengagement from current focus.
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Sampath D, Sathyanesan M, Newton SS. Cognitive dysfunction in major depression and Alzheimer's disease is associated with hippocampal-prefrontal cortex dysconnectivity. Neuropsychiatr Dis Treat 2017; 13:1509-1519. [PMID: 28652752 PMCID: PMC5476659 DOI: 10.2147/ndt.s136122] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Cognitive dysfunction is prevalent in psychiatric disorders. Deficits are observed in multiple domains, including working memory, executive function, attention, and information processing. Disability caused by cognitive dysfunction is frequently as debilitating as the prominent emotional disturbances. Interactions between the hippocampus and the prefrontal cortex are increasingly appreciated as an important link between cognition and emotion. Recent developments in optogenetics, imaging, and connectomics can enable the investigation of this circuit in a manner that is relevant to disease pathophysiology. The goal of this review is to shed light on the contributions of this circuit to cognitive dysfunction in neuropsychiatric disorders, focusing on Alzheimer's disease and depression.
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Affiliation(s)
- Dayalan Sampath
- Division of Basic Biomedical Sciences, Sanford School of Medicine, University of South Dakota, Vermillion
| | - Monica Sathyanesan
- Division of Basic Biomedical Sciences, Sanford School of Medicine, University of South Dakota, Vermillion.,Sioux Falls VA Healthcare System, Sioux Falls, SD, USA
| | - Samuel S Newton
- Division of Basic Biomedical Sciences, Sanford School of Medicine, University of South Dakota, Vermillion.,Sioux Falls VA Healthcare System, Sioux Falls, SD, USA
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Carter AR, McAvoy MP, Siegel JS, Hong X, Astafiev SV, Rengachary J, Zinn K, Metcalf NV, Shulman GL, Corbetta M. Differential white matter involvement associated with distinct visuospatial deficits after right hemisphere stroke. Cortex 2016; 88:81-97. [PMID: 28081452 DOI: 10.1016/j.cortex.2016.12.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 07/07/2016] [Accepted: 12/08/2016] [Indexed: 02/05/2023]
Abstract
Visuospatial attention depends on the integration of multiple processes, and people with right hemisphere lesions after a stroke may exhibit severe or no visuospatial deficits. The anatomy of core components of visuospatial attention is an area of intense interest. Here we examine the relationship between the disruption of core components of attention and lesion distribution in a heterogeneous group (N = 70) of patients with right hemisphere strokes regardless of the presence of clinical neglect. Deficits of lateralized spatial orienting, measured as the difference in reaction times for responding to visual targets in the contralesional or ipsilesional visual field, and deficits in re-orienting attention, as measured by the difference in reaction times for invalidly versus validly cued targets, were measured using a computerized spatial orienting task. Both measures were related through logistic regression and a novel ridge regression method to anatomical damage measured with magnetic resonance imaging. While many regions were common to both deficit maps, a deficit in lateralized spatial orienting was more associated with lesions in the white matter underlying the posterior parietal cortex, and middle and inferior frontal gyri. A deficit in re-orienting of attention toward unattended locations was associated with lesions in the white matter of the posterior parietal cortex, insular cortex and less so with white matter involvement of the anterior frontal lobe. An hodological analysis also supports this partial dissociation between the white matter tracts that are damaged in lateralized spatial biases versus impaired re-orienting. Our results underscore that the integrity of fronto-parietal white matter tracts is crucial for visuospatial attention and that different attention components are mediated by partially distinct neuronal substrates.
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Affiliation(s)
- Alex R Carter
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA.
| | - Mark P McAvoy
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Joshua S Siegel
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Xin Hong
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Serguei V Astafiev
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Jennifer Rengachary
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Kristi Zinn
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Nicholas V Metcalf
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Gordon L Shulman
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Maurizio Corbetta
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA; Department of Radiology, Washington University School of Medicine, St. Louis, MO, USA; Department of Anatomy and Neurobiology, Washington University School of Medicine, St. Louis, MO, USA
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Moro V, Pernigo S, Tsakiris M, Avesani R, Edelstyn NM, Jenkinson PM, Fotopoulou A. Motor versus body awareness: Voxel-based lesion analysis in anosognosia for hemiplegia and somatoparaphrenia following right hemisphere stroke. Cortex 2016; 83:62-77. [DOI: 10.1016/j.cortex.2016.07.001] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 05/06/2016] [Accepted: 07/06/2016] [Indexed: 01/01/2023]
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Raybaud C. Cerebral hemispheric low-grade glial tumors in children: preoperative anatomic assessment with MRI and DTI. Childs Nerv Syst 2016; 32:1799-811. [PMID: 27659823 DOI: 10.1007/s00381-016-3188-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 07/07/2016] [Indexed: 12/01/2022]
Abstract
PURPOSE The aims of this study are to analyze how the nature and the behavior of low-grade glial tumors (LGGT) in children may correlate with the anatomy of the cerebral hemispheres and to evaluate the consequent impact of diffusion tensor imaging (DTI) techniques in the presurgical assessment. METHODS This is a combined review of a series of 155 cases of LGGT and of the recent literature on the subject. RESULTS The cases retrieved from our data bank were divided in central hemispheric tumors (basal ganglia and thalami) (36 cases), glioneuronal cortical-based tumors (49 cases), and glial tumors of the cerebral mantle (70 cases). A close correlation was found in the thalamus between the primary location of the tumor (juxta-ventricular, inferior, lateral, bilateral) and its extension (ventricular lumen, midbrain and mesial temporal, globus pallidus, respectively) which may relate to the connectivity. Among the glioneuronal tumors, most gangliogliomas were located in the temporal lobe and especially in the mesial temporal structures. In addition, the morphologic feature of the ganglioglioma was different there from the neocortical areas. As a complementary approach, DTI data may assist in evaluating the structure and the extension of the LGGT, in addition to planning the surgical strategy. CONCLUSIONS In the cerebral hemispheres like in the rest of the central nervous system, there is some degree of correlation between the anatomy and the nature, appearance, and behavior of the LGGT in children.
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Affiliation(s)
- Charles Raybaud
- Division of Neuroradiology, Hospital for Sick Children, University of Toronto, 555 University Avenue, Toronto, ON, M5G1X8, Canada.
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Lucas-Jiménez O, Díez-Cirarda M, Ojeda N, Peña J, Cabrera-Zubizarreta A, Ibarretxe-Bilbao N. Verbal Memory in Parkinson's Disease: A Combined DTI and fMRI Study. JOURNAL OF PARKINSONS DISEASE 2016; 5:793-804. [PMID: 27070003 PMCID: PMC4927836 DOI: 10.3233/jpd-150623] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Background: While significant progress has been made to determine the functional role of specific gray matter areas underlying verbal memory in Parkinson’s disease (PD), very little is known about the relationship between these regions and their underlying white matter structures. Objective: The objectives of this study were (1) to investigate verbal memory, fractional anisotropy and brain activation differences between PD patients and healthy controls (HC), (2) to explore the neuroanatomical and neurofunctional correlates of verbal memory in PD, and (3) to investigate the relationship between these neuroanatomical and neurofunctional verbal memory correlates in PD. Methods: Functional magnetic resonance imaging (fMRI) while performing a verbal memory paradigm and diffusion tensor imaging data (DTI), were acquired in 37 PD patients and 15 age-, sex-, and education-matched HC. Results: PD patients showed verbal recognition memory impairment, lower fractional anisotropy in the anterior cingulate tract, and lower brain activation in the inferior orbitofrontal cortex compared to HC. Brain activation in the inferior orbitofrontal cortex correlated significantly with verbal recognition memory impairment in PD patients. In addition, a relationship between brain activation in the inferior orbitofrontal cortex and fractional anisotropy of the uncinate fasciculus was found in PD. Conclusions: These results reveal that deficits in verbal memory in PD are accompanied by functional brain activation changes, but also have specific structural correlates related to white matter microstructural integrity.
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Affiliation(s)
- Olaia Lucas-Jiménez
- Department of Methods and Experimental Psychology, Faculty of Psychology and Education, University of Deusto, Bilbao, Basque Country, Spain
| | - María Díez-Cirarda
- Department of Methods and Experimental Psychology, Faculty of Psychology and Education, University of Deusto, Bilbao, Basque Country, Spain
| | - Natalia Ojeda
- Department of Methods and Experimental Psychology, Faculty of Psychology and Education, University of Deusto, Bilbao, Basque Country, Spain
| | - Javier Peña
- Department of Methods and Experimental Psychology, Faculty of Psychology and Education, University of Deusto, Bilbao, Basque Country, Spain
| | | | - Naroa Ibarretxe-Bilbao
- Department of Methods and Experimental Psychology, Faculty of Psychology and Education, University of Deusto, Bilbao, Basque Country, Spain
- Correspondence to: Dr. Naroa Ibarretxe-Bilbao, Faculty of Psychology and Education. University of Deusto, Avda Universidades 24, (48007), Bilbao, Spain. Tel.: +34 944 139 000/Ext.: 2892; E-mail:
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Wu Y, Sun D, Wang Y, Wang Y. Subcomponents and Connectivity of the Inferior Fronto-Occipital Fasciculus Revealed by Diffusion Spectrum Imaging Fiber Tracking. Front Neuroanat 2016; 10:88. [PMID: 27721745 PMCID: PMC5033953 DOI: 10.3389/fnana.2016.00088] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 09/09/2016] [Indexed: 12/20/2022] Open
Abstract
The definitive structure and functional role of the inferior fronto-occipital fasciculus (IFOF) are still controversial. In this study, we aimed to investigate the connectivity, asymmetry, and segmentation patterns of this bundle. High angular diffusion spectrum imaging (DSI) analysis was performed on 10 healthy adults and a 90-subject DSI template (NTU-90 Atlas). In addition, a new tractography approach based on the anatomic subregions and two regions of interest (ROI) was evaluated for the fiber reconstructions. More widespread anterior-posterior connections than previous “standard” definition of the IFOF were found. This distinct pathway demonstrated a greater inter-subjects connective variability with a maximum of 40% overlap in its central part. The statistical results revealed no asymmetry between the left and right hemispheres and no significant differences existed in distributions of the IFOF according to sex. In addition, five subcomponents within the IFOF were identified according to the frontal areas of originations. As the subcomponents passed through the anterior floor of the external capsule, the fibers radiated to the posterior terminations. The most common connection patterns of the subcomponents were as follows: IFOF-I, from frontal polar cortex to occipital pole, inferior occipital lobe, middle occipital lobe, superior occipital lobe, and pericalcarine; IFOF-II, from orbito-frontal cortex to occipital pole, inferior occipital lobe, middle occipital lobe, superior occipital lobe, and pericalcarine; IFOF-III, from inferior frontal gyrus to inferior occipital lobe, middle occipital lobe, superior occipital lobe, occipital pole, and pericalcarine; IFOF-IV, from middle frontal gyrus to occipital pole, and inferior occipital lobe; IFOF-V, from superior frontal gyrus to occipital pole, inferior occipital lobe, and middle occipital lobe. Our work demonstrates the feasibility of high resolution diffusion tensor tractography with sufficient sensitivity to elucidate more anatomical details of the IFOF. And we provides a new framework for subdividing the IFOF for better understanding its functional role in the human brain.
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Affiliation(s)
- Yupeng Wu
- Department of Neurosurgery, The First Affiliated Hospital of China Medical University Shenyang, China
| | - Dandan Sun
- Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University Shenyang, China
| | - Yong Wang
- Department of Neurosurgery, The First Affiliated Hospital of China Medical University Shenyang, China
| | - Yibao Wang
- Department of Neurosurgery, The First Affiliated Hospital of China Medical University Shenyang, China
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