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Fehr T, Mehrens S, Haag MC, Amelung A, Gloy K. Changes in Spatiotemporal Dynamics of Default Network Oscillations between 19 and 29 Years of Age. Brain Sci 2024; 14:671. [PMID: 39061412 PMCID: PMC11274777 DOI: 10.3390/brainsci14070671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 06/15/2024] [Accepted: 06/20/2024] [Indexed: 07/28/2024] Open
Abstract
The exploration of functional resting-state brain developmental parameters and measures can help to improve scientific, psychological, and medical applications. The present work focussed on both traditional approaches, such as topographical power analyses at the signal space level, and advanced approaches, such as the exploration of age-related dynamics of source space data. The results confirmed the expectation that the third life decade would show a kind of stability in oscillatory signal and source-space-related parameters. However, from a source dynamics perspective, different frequency ranges appear to develop quite differently, as reflected in age-related sequential network communication profiles. Among other discoveries, the left anterior cingulate source location could be shown to reduce bi-directional network communication in the lower alpha band, whereas it differentiated its uni- and bidirectional communication dynamics to sub-cortical and posterior brain locations. Higher alpha oscillations enhanced communication dynamics between the thalamus and particularly frontal areas. In conclusion, resting-state data appear to be, at least in part, functionally reorganized in the default mode network, while quantitative measures, such as topographical power and regional source activity, did not correlate with age in the third life decade. In line with other authors, we suggest the further development of a multi-perspective approach in biosignal analyses.
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Affiliation(s)
- Thorsten Fehr
- Institute for Psychology, University of Bremen, 28357 Bremen, Germany (K.G.)
- Center for Advanced Imaging, University of Bremen, 28357 Bremen, Germany
| | - Sophia Mehrens
- Institute for Psychology, University of Bremen, 28357 Bremen, Germany (K.G.)
| | | | - Anneke Amelung
- Institute for Psychology, University of Bremen, 28357 Bremen, Germany (K.G.)
| | - Kilian Gloy
- Institute for Psychology, University of Bremen, 28357 Bremen, Germany (K.G.)
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Leskinen S, Singha S, Mehta NH, Quelle M, Shah HA, D'Amico RS. Applications of Functional Magnetic Resonance Imaging to the Study of Functional Connectivity and Activation in Neurological Disease: A Scoping Review of the Literature. World Neurosurg 2024; 189:185-192. [PMID: 38843969 DOI: 10.1016/j.wneu.2024.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 06/02/2024] [Indexed: 07/09/2024]
Abstract
BACKGROUND Functional magnetic resonance imaging (fMRI) has transformed our understanding of brain's functional architecture, providing critical insights into neurological diseases. This scoping review synthesizes the current landscape of fMRI applications across various neurological domains, elucidating the evolving role of both task-based and resting-state fMRI in different settings. METHODS We conducted a comprehensive scoping review following the Preferred Reporting Items for Systematic Review and Meta-Analyses Extension for Scoping Reviews guidelines. Extensive searches in Medline/PubMed, Embase, and Web of Science were performed, focusing on studies published between 2003 and 2023 that utilized fMRI to explore functional connectivity and regional activation in adult patients with neurological conditions. Studies were selected based on predefined inclusion and exclusion criteria, with data extracted. RESULTS We identified 211 studies, covering a broad spectrum of neurological disorders including mental health, movement disorders, epilepsy, neurodegeneration, traumatic brain injury, cerebrovascular accidents, vascular abnormalities, neurorehabilitation, neuro-critical care, and brain tumors. The majority of studies utilized resting-state fMRI, underscoring its prominence in identifying disease-specific connectivity patterns. Results highlight the potential of fMRI to reveal the underlying pathophysiological mechanisms of various neurological conditions, facilitate diagnostic processes, and potentially guide therapeutic interventions. CONCLUSIONS fMRI serves as a powerful tool for elucidating complex neural dynamics and pathologies associated with neurological diseases. Despite the breadth of applications, further research is required to standardize fMRI protocols, improve interpretative methodologies, and enhance the translation of imaging findings to clinical practice. Advances in fMRI technology and analytics hold promise for improving the precision of neurological assessments and interventions.
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Affiliation(s)
- Sandra Leskinen
- State University of New York Downstate Medical Center, New York, USA
| | - Souvik Singha
- Department of Neurological Surgery, Lenox Hill Hospital/Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New York, NY, USA.
| | - Neel H Mehta
- Department of Neurosurgery, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA
| | | | - Harshal A Shah
- Department of Neurological Surgery, Lenox Hill Hospital/Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New York, NY, USA
| | - Randy S D'Amico
- Department of Neurological Surgery, Lenox Hill Hospital/Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New York, NY, USA
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Sultana T, Hasan MA, Kang X, Liou-Johnson V, Adamson MM, Razi A. Neural mechanisms of emotional health in traumatic brain injury patients undergoing rTMS treatment. Mol Psychiatry 2023; 28:5150-5158. [PMID: 37414927 DOI: 10.1038/s41380-023-02159-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 06/16/2023] [Accepted: 06/22/2023] [Indexed: 07/08/2023]
Abstract
Emotional dysregulation such as that seen in depression, are a long-term consequence of mild traumatic brain injury (TBI), that can be improved by using neuromodulation treatments such as repetitive transcranial magnetic stimulation (rTMS). Previous studies provide insights into the changes in functional connectivity related to general emotional health after the application of rTMS procedures in patients with TBI. However, these studies provide little understanding of the underlying neuronal mechanisms that drive the improvement of the emotional health in these patients. The current study focuses on inferring the effective (causal) connectivity changes and their association with emotional health, after rTMS treatment of cognitive problems in TBI patients (N = 32). Specifically, we used resting state functional magnetic resonance imaging (fMRI) together with spectral dynamic causal model (spDCM) to investigate changes in brain effective connectivity, before and after the application of high frequency (10 Hz) rTMS over left dorsolateral prefrontal cortex. We investigated the effective connectivity of the cortico-limbic network comprised of 11 regions of interest (ROIs) which are part of the default mode, salience, and executive control networks, known to be implicated in emotional processing. The results indicate that overall, among extrinsic connections, the strength of excitatory connections decreased while that of inhibitory connections increased after the neuromodulation. The cardinal region in the analysis was dorsal anterior cingulate cortex (dACC) which is considered to be the most influenced during emotional health disorders. Our findings implicate the altered connectivity of dACC with left anterior insula and medial prefrontal cortex, after the application of rTMS, as a potential neural mechanism underlying improvement of emotional health. Our investigation highlights the importance of these brain regions as treatment targets in emotional processing in TBI.
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Affiliation(s)
- Tajwar Sultana
- Department of Computer and Information Systems Engineering, NED University of Engineering & Technology, Karachi, 75270, Pakistan
- Department of Biomedical Engineering, NED University of Engineering & Technology, Karachi, 75270, Pakistan
- Neurocomputation Laboratory, National Centre of Artificial Intelligence, Peshawar, Pakistan
| | - Muhammad Abul Hasan
- Department of Biomedical Engineering, NED University of Engineering & Technology, Karachi, 75270, Pakistan
- Neurocomputation Laboratory, National Centre of Artificial Intelligence, Peshawar, Pakistan
| | - Xiaojian Kang
- WRIISC-WOMEN, VA Palo Alto Healthcare System, Palo Alto, CA, 94304, USA
- Rehabilitation Service, Veterans Affairs Palo Alto Healthcare System (VAPAHCS), 3801 Miranda Avenue, Palo Alto, CA, 94304, USA
| | - Victoria Liou-Johnson
- Rehabilitation Service, Veterans Affairs Palo Alto Healthcare System (VAPAHCS), 3801 Miranda Avenue, Palo Alto, CA, 94304, USA
- Clinical Excellence Research Center, Stanford University School of Medicine, Stanford, CA, 94304, USA
| | - Maheen Mausoof Adamson
- WRIISC-WOMEN, VA Palo Alto Healthcare System, Palo Alto, CA, 94304, USA
- Rehabilitation Service, Veterans Affairs Palo Alto Healthcare System (VAPAHCS), 3801 Miranda Avenue, Palo Alto, CA, 94304, USA
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, 94304, USA
| | - Adeel Razi
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, VIC, 3800, Australia.
- Wellcome Centre for Human Neuroimaging, University College London, WC1N 3AR, London, United Kingdom.
- CIFAR Azrieli Global Scholars Program, CIFAR, Toronto, ON, Canada.
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Ryan D, Mirbagheri S, Yahyavi-Firouz-Abadi N. The Current State of Functional MR Imaging for Trauma Prognostication. Neuroimaging Clin N Am 2023; 33:299-313. [PMID: 36965947 DOI: 10.1016/j.nic.2023.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
Abstract
In this review, we discuss the basics of functional MRI (fMRI) techniques including task-based and resting state fMRI, and overview the major findings in patients with traumatic brain injury. We summarize the studies that have longitudinally evaluated the changes in brain connectivity and task-related activation in trauma patients during different phases of trauma. We discuss how these data may potentially be used for prognostication, treatment planning, or monitoring and management of trauma patients.
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Affiliation(s)
- Daniel Ryan
- Southern Illinois University School of Medicine, 401 East Carpenter Street, Springfield, IL, USA
| | - Saeedeh Mirbagheri
- University of Vermont Medical Center, 111 Colchester Avenue, Burlington, VT 05401, USA
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Vinh To X, Soni N, Medeiros R, Alateeq K, Nasrallah FA. Traumatic brain injury alterations in the functional connectome are associated with neuroinflammation but not tau in a P30IL tauopathy mouse model. Brain Res 2022; 1789:147955. [PMID: 35636493 DOI: 10.1016/j.brainres.2022.147955] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/19/2022] [Accepted: 05/25/2022] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Traumatic Brain Injury (TBI) is often associated with long-term cognitive deficits and altered brain networks which have been linked with accumulation of neurofibrillary tau tangles and neuroinflammation. In this work, we investigated the changes in the brain post-TBI in an Alzheimer's disease pR5 tauopathy model and evaluated the contribution of tauopathy and neuroinflammation to connectivity alterations using resting-state functional Magnetic Resonance Imaging (rs-fMRI). METHOD 26 P301L tau transgenic mice of 8-9 months of age (21-35 g) expressing the human tau isoform carrying the pathogenic P301L mutation were used for the study. Animals were assessed at day 1 and 7 post-injury/craniotomy and were randomly divided into four groups. All animals underwent an MRI scan on a 9.4 T Bruker system where rsfMRI was acquired. Following imaging, brains were stained with pSer (396 + 404), glial fibrillary acidic protein (GFAP), and ionised calcium-binding adaptor molecule-1 (Iba-1). Group-information-guided Independent Component Analysis (GIG-ICA) and region-of-interest (ROI)-based network connectivity approaches were applied. Principal Component Regression was applied to predict connectivity network strength from the corresponding ROIs. RESULTS TBI mice showed decreased functional connectivity in the dentate gyrus, thalamus, and other areas compared to sham animals at day 1 post-injury with the majority of changes resolving at day 7. Principal Component Regression showed only the contralateral CA1 network strength was correlated with the CA1's astrocyte and microglia cell density and the ipsilateral thalamus network strength was correlated with the ipsilateral thalamus' astrocyte and microglia cell density. CONCLUSION We present the first report on the temporal alterations in functional connectivity in a P30IL mouse model following TBI. Connectivity between key regions known to be affected in Alzheimer's disease were short-term and reversible following injury. Connectivity strength in CA1 and thalamus showed significant correlation with astrocyte and microglial cell density but not tau density.
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Affiliation(s)
- Xuan Vinh To
- The Queensland Brain Institute, The University of Queensland, St. Lucia, QLD, Australia
| | - Neha Soni
- The Queensland Brain Institute, The University of Queensland, St. Lucia, QLD, Australia
| | - Rodrigo Medeiros
- The Queensland Brain Institute, The University of Queensland, St. Lucia, QLD, Australia
| | - Khawlah Alateeq
- The Queensland Brain Institute, The University of Queensland, St. Lucia, QLD, Australia
| | - Fatima A Nasrallah
- The Queensland Brain Institute, The University of Queensland, St. Lucia, QLD, Australia; The University of California, Irvine, The United States of America.
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Wilde EA, Wanner I, Kenney K, Gill J, Stone JR, Disner S, Schnakers C, Meyer R, Prager EM, Haas M, Jeromin A. A Framework to Advance Biomarker Development in the Diagnosis, Outcome Prediction, and Treatment of Traumatic Brain Injury. J Neurotrauma 2022; 39:436-457. [PMID: 35057637 PMCID: PMC8978568 DOI: 10.1089/neu.2021.0099] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Elisabeth A. Wilde
- University of Utah, Neurology, 383 Colorow, Salt Lake City, Utah, United States, 84108
- VA Salt Lake City Health Care System, 20122, 500 Foothill Dr., Salt Lake City, Utah, United States, 84148-0002
| | - Ina Wanner
- UCLA, Semel Institute, NRB 260J, 635 Charles E. Young Drive South, Los Angeles, United States, 90095-7332, ,
| | - Kimbra Kenney
- Uniformed Services University of the Health Sciences, Neurology, Center for Neuroscience and Regenerative Medicine, 4301 Jones Bridge Road, Bethesda, Maryland, United States, 20814
| | - Jessica Gill
- National Institutes of Health, National Institute of Nursing Research, 1 cloister, Bethesda, Maryland, United States, 20892
| | - James R. Stone
- University of Virginia, Radiology and Medical Imaging, Box 801339, 480 Ray C. Hunt Dr. Rm. 185, Charlottesville, Virginia, United States, 22903, ,
| | - Seth Disner
- Minneapolis VA Health Care System, 20040, Minneapolis, Minnesota, United States
- University of Minnesota Medical School Twin Cities, 12269, 10Department of Psychiatry and Behavioral Sciences, Minneapolis, Minnesota, United States
| | - Caroline Schnakers
- Casa Colina Hospital and Centers for Healthcare, 6643, Pomona, California, United States
- Ronald Reagan UCLA Medical Center, 21767, Los Angeles, California, United States
| | - Restina Meyer
- Cohen Veterans Bioscience, 476204, New York, New York, United States
| | - Eric M Prager
- Cohen Veterans Bioscience, 476204, External Affairs, 535 8th Ave, New York, New York, United States, 10018
| | - Magali Haas
- Cohen Veterans Bioscience, 476204, 535 8th Avenue, 12th Floor, New York City, New York, United States, 10018,
| | - Andreas Jeromin
- Cohen Veterans Bioscience, 476204, Translational Sciences, Cambridge, Massachusetts, United States
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Stein A, Iyer KK, Khetani AM, Barlow KM. Changes in working memory-related cortical responses following pediatric mild traumatic brain injury: A longitudinal fMRI study. JOURNAL OF CONCUSSION 2021. [DOI: 10.1177/20597002211006541] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Persistent post-concussion symptoms (PPCS) lasting longer than 4 weeks affect 25% of children with mild traumatic brain injury (mTBI) or concussion. Working memory (WM) problems are a common complaint in children with PPCS. Despite normal function on traditional neuropsychological tests, these children exhibit aberrant cortical responses within the dorsolateral prefrontal cortex (dlPFC) and default mode network (DMN) regions – both of which are implicated in WM. Using a prospective, longitudinal cohort study design, we investigated changes in cortical fMRI responses within the dlPFC and DMN during an nback WM task at two timepoints: one and two months post-injury. Across these timepoints, the primary outcome was change in cortical activations (increase in BOLD) and deactivations (decrease in BOLD) of both dlPFC and DMN. Twenty-nine children (mean age 15.49 ± 2.15; 48.3% male) with fMRI scans at both timepoints were included, following data quality control. Student’s t-tests were used to examine cortical activations across time and task difficulty. ANCOVA F-tests examined cortical responses after removal of baseline across time, task difficulty and recovery. Volumes of interest (5 mm sphere) were placed in peak voxel regions of the DMN and dlPFC to compare cortical responses between recovered and unrecovered participants over time (one-way ANOVA). Between one and two months post-injury, we found significant increases in dlPFC activations and significant activations and deactivations in the DMN with increasing task difficulty, alongside improved task performance. Cortical responses of the DMN and bilateral dlPFC displayed increased intensity in recovered participants, together with improved attention and behavioural symptoms. Overall, our findings suggest evidence of neural compensation and ongoing cognitive recovery from pediatric TBI over time between one and two months post injury in children with PPCS. These results highlight the wider and persisting implications of mTBI in children, whose maturing brains are particularly vulnerable to TBI.
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Affiliation(s)
- Athena Stein
- Acquired Brain Injury in Children Research Program, Child Health Research Centre, Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - Kartik K Iyer
- Acquired Brain Injury in Children Research Program, Child Health Research Centre, Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - Aneesh M Khetani
- Department of Pediatrics, University of Calgary, Calgary, Canada
| | - Karen M Barlow
- Acquired Brain Injury in Children Research Program, Child Health Research Centre, Faculty of Medicine, The University of Queensland, Brisbane, Australia
- Department of Pediatrics, University of Calgary, Calgary, Canada
- Queensland Pediatric Rehabilitation Service, Queensland Children's Hospital, Brisbane, Australia
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Wypych A, Wierzchowska M, Burduk P, Zawada E, Nadolska K, Serafin Z. Cortical presentation of language functions in patients after total laryngectomy: a fMRI study. Neuroradiology 2020; 62:843-849. [PMID: 32253455 PMCID: PMC7311494 DOI: 10.1007/s00234-020-02407-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/13/2020] [Indexed: 11/26/2022]
Abstract
Purpose The aim of this study is to use functional magnetic resonance (fMRI) to analyse the cortical presentation of selected language functions in patients after a total laryngectomy. Methods Eighteen patients after total laryngectomy treated with electrolarynx speech and 18 volunteers were included. The mean number of patients’ post-operative speech rehabilitation sessions was five (range of 3–8 sessions). Four paradigms were used, including noun generation, pseudoword reading, reading phrases with pseudowords, and nonliteral sign reproduction. Results In noun, the most significant difference between the groups was the stronger activation of both lingual gyri in the volunteers. Pseudoword reading resulted in stronger activations in patients than in volunteers in the lingual gyri, the right cerebellum, the right Broca’s area, and the right parietal operculum. Reading phrases with pseudowords involved different parts of the Brodmann area 40. During nonliteral sign reproduction, there was a stronger activation of the left Broca’s area in volunteers and a stronger activation of the left premotor cortex in patients. Conclusion This study provides evidence of altered cortical activation in response to language tasks in patients after a laryngectomy compared with healthy volunteers, which may be considered brain plasticity in response to a laryngectomy.
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Affiliation(s)
- Aleksandra Wypych
- The Interdisciplinary Center for Modern Technologies, Nicolaus Copernicus University, Toruń, Poland
| | - Małgorzata Wierzchowska
- Department of Otolaryngology, Oncology and Oral and Maxillofacial Surgery, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland
| | - Paweł Burduk
- Department of Otolaryngology, Oncology and Oral and Maxillofacial Surgery, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland
| | - Elżbieta Zawada
- Department of Radiology and Diagnostic Imaging, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland
- Department of Geriatrics, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland
| | - Katarzyna Nadolska
- Department of Radiology and Diagnostic Imaging, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland
| | - Zbigniew Serafin
- Department of Radiology and Diagnostic Imaging, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland.
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