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Satoer D, Koudstaal PJ, Visch-Brink E, van der Giessen RS. Cerebellar-Induced Aphasia After Stroke: Evidence for the "Linguistic Cerebellum". CEREBELLUM (LONDON, ENGLAND) 2024; 23:1457-1465. [PMID: 38244134 PMCID: PMC11269354 DOI: 10.1007/s12311-024-01658-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/13/2024] [Indexed: 01/22/2024]
Abstract
The cerebellum is traditionally known to subserve motor functions. However, for several decades, the concept of the "cerebellar cognitive affective syndrome" has evolved. Studies in healthy participants and patients have confirmed the cerebellar role in language. The exact involvement of the cerebellum regarding cerebellar aphasia remains uncertain. We included 43 cerebellar stroke patients who were tested at 3 months post-onset with the Boston Naming Test (BNT), the Token Test (TT), and the Diagnostic Instrument for Mild Aphasia (DIMA). Lesion side (left/right) and volume (cm3) were investigated. Patients significantly deviated on the following: BNT (p<0.001), TT (p<0.05), DIMA subtests: sentences repetition (p=0.001), semantic odd-picture-out (p<0.05), sentence completion (p<0.05) without an effect of lesion location (left/right) or volume (cm3) (p>0.05). Our clinical study confirms a non-lateralized cerebellar aphasia post-stroke, characterized by impairments in word retrieval, phonology, semantics, and syntax resembling cerebral-induced aphasia. The integral cerebellum appears to interact with eloquent cortico-subcortical language areas.
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Affiliation(s)
- Djaina Satoer
- Department of Neurosurgery, Erasmus MC University Medical Center, Dr. Molewaterplein 40, room Na-2106, 3015, GD, Rotterdam, The Netherlands.
| | - Peter J Koudstaal
- Department of Neurology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Evy Visch-Brink
- Department of Neurosurgery, Erasmus MC University Medical Center, Dr. Molewaterplein 40, room Na-2106, 3015, GD, Rotterdam, The Netherlands
- Department of Neurology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
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Marino S, Menna G, Bilgin L, Mattogno PP, Gaudino S, Quaranta D, Caraglia N, Olivi A, Berger MS, Doglietto F, Della Pepa GM. "False friends" in Language Subcortical Mapping: A Systematic Literature Review. World Neurosurg 2024:S1878-8750(24)01132-X. [PMID: 38968990 DOI: 10.1016/j.wneu.2024.06.156] [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: 04/23/2024] [Revised: 06/27/2024] [Accepted: 06/28/2024] [Indexed: 07/07/2024]
Abstract
BACKGROUND Subcortical brain mapping in awake glioma surgery might optimize the extent of resection while minimizing neurological morbidity, but it requires a correct interpretation of responses evoked during surgery. To define, with a systematic review: 1) a comprehensive 'map' of the principal white matter bundles involved in awake surgery on language-related networks, describing the most employed tests and the expected responses; 2) In linguistics, a false friend is a word in a different language that looks or sounds like a word in given language but differs significantly in meaning. Similarly, our aim is to give the surgeons a comprehensive review of potentially misleading responses, namely "false friends", in subcortical language mapping. METHODS Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed. Standardized data extraction was conducted. RESULTS Out of a total of 224 initial papers, 67 were included for analysis. Expected responses, common tests, and potential "false friends" were recorded for each of the following white matter bundles: frontal aslant tract, superior and inferior longitudinal fascicles, arcuate fascicle, inferior fronto-occipital fascicle, uncinate fascicle. Practical examples are discussed to underline the risk of intraoperative fallouts ("false friends") that might lead to an early interruption (false positive) or a risky surgical removal (false negative). CONCLUSIONS This paper represents a critical review of the present status of subcortical awake mapping and underlines practical "false-friend" in mapping critical crossroads in language-related networks.
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Affiliation(s)
- Salvatore Marino
- Neurosurgery Unit, Department of Neurosciences, Catholic University School of Medicine, Rome, Italy
| | - Grazia Menna
- Neurosurgery Unit, Department of Neurosciences, Catholic University School of Medicine, Rome, Italy
| | - Lal Bilgin
- Neurosurgery Unit, Department of Neurosciences, Catholic University School of Medicine, Rome, Italy
| | - Pier Paolo Mattogno
- Neurosurgery Unit, Department of Neurosciences, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy
| | - Simona Gaudino
- Diagnostic Neuroradiology Unit, Department of Radiological and Hematological Sciences, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Davide Quaranta
- Neurology Unit, Neurorehabilitation and Neuropsychology Service, Fondazione Policlinico Universitario "A. Gemelli", Istituto di Ricovero e Cura a Carattere Scientifico, San Giovanni Rotondo, Italy
| | - Naike Caraglia
- Neurology Unit, Neurorehabilitation and Neuropsychology Service, Fondazione Policlinico Universitario "A. Gemelli", Istituto di Ricovero e Cura a Carattere Scientifico, San Giovanni Rotondo, Italy
| | - Alessandro Olivi
- Neurosurgery Unit, Department of Neurosciences, Catholic University School of Medicine, Rome, Italy; Neurosurgery Unit, Department of Neurosciences, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy
| | - Mitchel S Berger
- Department of Neurological Surgery, University of California, San Francisco, California, USA
| | - Francesco Doglietto
- Neurosurgery Unit, Department of Neurosciences, Catholic University School of Medicine, Rome, Italy; Neurosurgery Unit, Department of Neurosciences, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy
| | - Giuseppe Maria Della Pepa
- Neurosurgery Unit, Department of Neurosciences, Catholic University School of Medicine, Rome, Italy; Neurosurgery Unit, Department of Neurosciences, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy.
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Toba MN, Malkinson TS, Howells H, Mackie MA, Spagna A. Same, Same but Different? A Multi-Method Review of the Processes Underlying Executive Control. Neuropsychol Rev 2024; 34:418-454. [PMID: 36967445 DOI: 10.1007/s11065-023-09577-4] [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: 02/17/2022] [Accepted: 09/26/2022] [Indexed: 03/29/2023]
Abstract
Attention, working memory, and executive control are commonly considered distinct cognitive functions with important reciprocal interactions. Yet, longstanding evidence from lesion studies has demonstrated both overlap and dissociation in their behavioural expression and anatomical underpinnings, suggesting that a lower dimensional framework could be employed to further identify processes supporting goal-directed behaviour. Here, we describe the anatomical and functional correspondence between attention, working memory, and executive control by providing an overview of cognitive models, as well as recent data from lesion studies, invasive and non-invasive multimodal neuroimaging and brain stimulation. We emphasize the benefits of considering converging evidence from multiple methodologies centred on the identification of brain mechanisms supporting goal-driven behaviour. We propose that expanding on this approach should enable the construction of a comprehensive anatomo-functional framework with testable new hypotheses, and aid clinical neuroscience to intervene on impairments of executive functions.
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Affiliation(s)
- Monica N Toba
- Laboratory of Functional Neurosciences (UR UPJV 4559), University Hospital of Amiens and University of Picardie Jules Verne, Amiens, France.
- CHU Amiens Picardie - Site Sud, Centre Universitaire de Recherche en Santé, Avenue René Laënnec, 80054, Amiens Cedex 1, France.
| | - Tal Seidel Malkinson
- Paris Brain Institute, ICM, Hôpital de La Pitié-Salpêtrière, Sorbonne Université, Inserm U 1127, CNRS UMR 7225, 75013, Paris, France
- Université de Lorraine, CRAN, F-54000, Nancy, France
| | - Henrietta Howells
- Laboratory of Motor Control, Department of Medical Biotechnologies and Translational Medicine, Humanitas Research Hospital, IRCCS, Università Degli Studi Di Milano, Milan, Italy
| | - Melissa-Ann Mackie
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Alfredo Spagna
- Department of Psychology, Columbia University, New York, NY, 10025, USA.
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Du L, Ye F, Gao W, Yang A, Luan J, Xu M, Lv K, Hu P, Liu B, Yu H, Wang Y, Huang W, Shu N, Ouyang G, Yin Q, Shmuel A, Wang Y, Zhang Q, Xu P, Ma G. Decreased brain iron deposition based on quantitative susceptibility mapping correlates with reduced neurodevelopmental status in children with autism spectrum disorder. Cereb Cortex 2024; 34:63-71. [PMID: 38696609 DOI: 10.1093/cercor/bhae081] [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: 10/30/2023] [Revised: 01/24/2024] [Accepted: 02/12/2024] [Indexed: 05/04/2024] Open
Abstract
To investigate potential correlations between the susceptibility values of certain brain regions and the severity of disease or neurodevelopmental status in children with autism spectrum disorder (ASD), 18 ASD children and 15 healthy controls (HCs) were recruited. The neurodevelopmental status was assessed by the Gesell Developmental Schedules (GDS) and the severity of the disease was evaluated by the Autism Behavior Checklist (ABC). Eleven brain regions were selected as regions of interest and the susceptibility values were measured by quantitative susceptibility mapping. To evaluate the diagnostic capacity of susceptibility values in distinguishing ASD and HC, the receiver operating characteristic (ROC) curve was computed. Pearson and Spearman partial correlation analysis were used to depict the correlations between the susceptibility values, the ABC scores, and the GDS scores in the ASD group. ROC curves showed that the susceptibility values of the left and right frontal white matter had a larger area under the curve in the ASD group. The susceptibility value of the right globus pallidus was positively correlated with the GDS-fine motor scale score. These findings indicated that the susceptibility value of the right globus pallidus might be a viable imaging biomarker for evaluating the neurodevelopmental status of ASD children.
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Affiliation(s)
- Lei Du
- Department of Radiology, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang, Beijing 100029, China
- Department of Radiology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, No. 52 Fucheng Road, Haidian, Beijing 100142, China
| | - Fang Ye
- Department of Pediatrics, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang, Beijing 100029, China
| | - Wenwen Gao
- Department of Radiology, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang, Beijing 100029, China
- Department of Radiology, the Sixth Medical Center of People's Liberation Army (PLA) General Hospital, No. 6 Fucheng Road, Haidian, Beijing 100048, China
| | - Aocai Yang
- Department of Radiology, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang, Beijing 100029, China
| | - Jixin Luan
- Department of Radiology, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang, Beijing 100029, China
| | - Manxi Xu
- Department of Radiology, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang, Beijing 100029, China
| | - Kuan Lv
- Department of Radiology, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang, Beijing 100029, China
| | - Pianpian Hu
- Department of Radiology, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang, Beijing 100029, China
| | - Bing Liu
- Department of Radiology, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang, Beijing 100029, China
| | - Hongwei Yu
- Department of Radiology, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang, Beijing 100029, China
| | - Yuli Wang
- Department of Radiology, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang, Beijing 100029, China
| | - Weijie Huang
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, No. 19 Xinjiekouwai Road, Haidian, Beijing 100875, China
| | - Ni Shu
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, No. 19 Xinjiekouwai Road, Haidian, Beijing 100875, China
| | - Gaoxiang Ouyang
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, No. 19 Xinjiekouwai Road, Haidian, Beijing 100875, China
| | - Qian Yin
- School of Artificial Intelligence, Beijing Normal University, No. 19 Xinjiekouwai Road, Haidian, Beijing 100875, China
| | - Amir Shmuel
- McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, 45 Sherbrooke St W, Montreal, QC, Canada
- Department of Neurology and Neurosurgery, Physiology, and Biomedical Engineering, McGill University, 45 Sherbrooke St W, Montreal, QC, Canada
| | - Yunfeng Wang
- Department of Pediatrics, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang, Beijing 100029, China
| | - Qi Zhang
- Department of Pediatrics, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang, Beijing 100029, China
| | - Pengfei Xu
- Department of Pediatrics, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang, Beijing 100029, China
| | - Guolin Ma
- Department of Radiology, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang, Beijing 100029, China
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Chiang H, Mudar RA, Dugas CS, Motes MA, Kraut MA, Hart J. A modified neural circuit framework for semantic memory retrieval with implications for circuit modulation to treat verbal retrieval deficits. Brain Behav 2024; 14:e3490. [PMID: 38680077 PMCID: PMC11056716 DOI: 10.1002/brb3.3490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 01/23/2024] [Accepted: 04/03/2024] [Indexed: 05/01/2024] Open
Abstract
Word finding difficulty is a frequent complaint in older age and disease states, but treatment options are lacking for such verbal retrieval deficits. Better understanding of the neurophysiological and neuroanatomical basis of verbal retrieval function may inform effective interventions. In this article, we review the current evidence of a neural retrieval circuit central to verbal production, including words and semantic memory, that involves the pre-supplementary motor area (pre-SMA), striatum (particularly caudate nucleus), and thalamus. We aim to offer a modified neural circuit framework expanded upon a memory retrieval model proposed in 2013 by Hart et al., as evidence from electrophysiological, functional brain imaging, and noninvasive electrical brain stimulation studies have provided additional pieces of information that converge on a shared neural circuit for retrieval of memory and words. We propose that both the left inferior frontal gyrus and fronto-polar regions should be included in the expanded circuit. All these regions have their respective functional roles during verbal retrieval, such as selection and inhibition during search, initiation and termination of search, maintenance of co-activation across cortical regions, as well as final activation of the retrieved information. We will also highlight the structural connectivity from and to the pre-SMA (e.g., frontal aslant tract and fronto-striatal tract) that facilitates communication between the regions within this circuit. Finally, we will discuss how this circuit and its correlated activity may be affected by disease states and how this circuit may serve as a novel target engagement for neuromodulatory treatment of verbal retrieval deficits.
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Affiliation(s)
- Hsueh‐Sheng Chiang
- Department of NeurologyUniversity of Texas Southwestern Medical CenterDallasTexasUSA
- School of Behavioral and Brain SciencesThe University of Texas at DallasRichardsonTexasUSA
| | - Raksha A. Mudar
- Department of Speech and Hearing ScienceUniversity of Illinois Urbana‐ChampaignChampaignIllinoisUSA
| | - Christine S. Dugas
- School of Behavioral and Brain SciencesThe University of Texas at DallasRichardsonTexasUSA
| | - Michael A. Motes
- School of Behavioral and Brain SciencesThe University of Texas at DallasRichardsonTexasUSA
| | - Michael A. Kraut
- Department of Radiology and Radiological ScienceJohns Hopkins UniversityBaltimoreMarylandUSA
| | - John Hart
- Department of NeurologyUniversity of Texas Southwestern Medical CenterDallasTexasUSA
- School of Behavioral and Brain SciencesThe University of Texas at DallasRichardsonTexasUSA
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Fedorenko E, Ivanova AA, Regev TI. The language network as a natural kind within the broader landscape of the human brain. Nat Rev Neurosci 2024; 25:289-312. [PMID: 38609551 DOI: 10.1038/s41583-024-00802-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2024] [Indexed: 04/14/2024]
Abstract
Language behaviour is complex, but neuroscientific evidence disentangles it into distinct components supported by dedicated brain areas or networks. In this Review, we describe the 'core' language network, which includes left-hemisphere frontal and temporal areas, and show that it is strongly interconnected, independent of input and output modalities, causally important for language and language-selective. We discuss evidence that this language network plausibly stores language knowledge and supports core linguistic computations related to accessing words and constructions from memory and combining them to interpret (decode) or generate (encode) linguistic messages. We emphasize that the language network works closely with, but is distinct from, both lower-level - perceptual and motor - mechanisms and higher-level systems of knowledge and reasoning. The perceptual and motor mechanisms process linguistic signals, but, in contrast to the language network, are sensitive only to these signals' surface properties, not their meanings; the systems of knowledge and reasoning (such as the system that supports social reasoning) are sometimes engaged during language use but are not language-selective. This Review lays a foundation both for in-depth investigations of these different components of the language processing pipeline and for probing inter-component interactions.
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Affiliation(s)
- Evelina Fedorenko
- Brain and Cognitive Sciences Department, Massachusetts Institute of Technology, Cambridge, MA, USA.
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA.
- The Program in Speech and Hearing in Bioscience and Technology, Harvard University, Cambridge, MA, USA.
| | - Anna A Ivanova
- School of Psychology, Georgia Institute of Technology, Atlanta, GA, USA
| | - Tamar I Regev
- Brain and Cognitive Sciences Department, Massachusetts Institute of Technology, Cambridge, MA, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA
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7
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Lawrence A, Carvajal M, Ormsby J. Beyond Broca's and Wernicke's: Functional Mapping of Ancillary Language Centers Prior to Brain Tumor Surgery. Tomography 2023; 9:1254-1275. [PMID: 37489468 PMCID: PMC10366753 DOI: 10.3390/tomography9040100] [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: 04/20/2023] [Revised: 06/21/2023] [Accepted: 06/23/2023] [Indexed: 07/26/2023] Open
Abstract
Functional MRI is a well-established tool used for pre-surgical planning to help the neurosurgeon have a roadmap of critical functional areas that should be avoided, if possible, during surgery to minimize morbidity for patients with brain tumors (though this also has applications for surgical resection of epileptogenic tissue and vascular lesions). This article reviews the locations of secondary language centers within the brain along with imaging findings to help improve our confidence in our knowledge on language lateralization. Brief overviews of these language centers and their contributions to the language networks will be discussed. These language centers include primary language centers of "Broca's Area" and "Wernicke's Area". However, there are multiple secondary language centers such as the dorsal lateral prefrontal cortex (DLPFC), frontal eye fields, pre- supplemental motor area (pre-SMA), Basal Temporal Language Area (BTLA), along with other areas of activation. Knowing these foci helps to increase self-assurance when discussing the nature of laterality with the neurosurgeon. By knowing secondary language centers for language lateralization, via fMRI, one can feel confident on providing neurosurgeon colleagues with appropriate information on the laterality of language in preparation for surgery.
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Affiliation(s)
- Ashley Lawrence
- Center for Neuropsychological Services, University of New Mexico, MSC 10 5530 1 University of New Mexico, Albuquerque, NM 87131-5001, USA
| | - Michael Carvajal
- Center for Neuropsychological Services, University of New Mexico, MSC 10 5530 1 University of New Mexico, Albuquerque, NM 87131-5001, USA
| | - Jacob Ormsby
- Department of Radiology, University of New Mexico, MSC 10 5530 1 University of New Mexico, Albuquerque, NM 87131-5001, USA
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Catena Baudo M, Villamil F, Paolinelli PS, Domenech NC, Cervio A, Ferrara LA, Bendersky M. Frontal Aslant Tract and Its Role in Language: A Journey Through Tractographies and Dissections. World Neurosurg 2023; 173:e738-e747. [PMID: 36889642 DOI: 10.1016/j.wneu.2023.02.145] [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: 11/29/2022] [Revised: 02/25/2023] [Accepted: 02/27/2023] [Indexed: 03/09/2023]
Abstract
BACKGROUND The frontal aslant tract (FAT) is a bilateral tract located within each frontal lobe. It connects the supplementary motor area in the superior frontal gyrus with the pars opercularis in the inferior frontal gyrus. There is a new and broader conceptualization of this tract called the extended FAT (eFAT). The eFAT tract role is believed to be related to several brain functions, including verbal fluency as one of its main domains. METHODS Tractographies were performed by using DSI Studio software on a template of 1065 healthy human brains. The tract was observed in a three-dimensional plane. The Laterality Index was calculated based on the length, volume, and diameter of fibers. A t test was performed to verify the statistical significance of global asymmetry. The results were compared with cadaveric dissections performed according to the Klingler technique. An illustrative case enlightens the neurosurgical application of this anatomic knowledge. RESULTS The eFAT communicates the superior frontal gyrus with the Broca area (within the left hemisphere) or its contralateral homotopic area within the nondominant hemisphere. We measured the commisural fibers, traced cingulate, striatal, and insular connections and showed the existence of new frontal projections as part of the main structure. The tract did not show a significant asymmetry between the hemispheres. CONCLUSIONS The tract was successfully reconstructed, focusing on its morphology and anatomic characteristics.
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Affiliation(s)
- Melanie Catena Baudo
- Living Anatomy Laboratory, Anatomy Department, School of Medicine, University of Buenos Aires (UBA), Buenos Aires, Argentina.
| | - Facundo Villamil
- Laboratory of Neuroanatomy, Anatomy Department, School of Medicine, University of Buenos Aires (UBA), Buenos Aires, Argentina; Department of Neurosurgery, Microsurgical Neuroanatomy Laboratory, FLENI, Buenos Aires, Argentina
| | - Pablo Sebastían Paolinelli
- Laboratory of Neuroanatomy, Anatomy Department, School of Medicine, University of Buenos Aires (UBA), Buenos Aires, Argentina
| | - Nicolás Cristian Domenech
- Living Anatomy Laboratory, Anatomy Department, School of Medicine, University of Buenos Aires (UBA), Buenos Aires, Argentina
| | - Andres Cervio
- Department of Neurosurgery, FLENI, Buenos Aires, Argentina
| | - Lucía Alba Ferrara
- ENyS (Studies in Neurosciences and Complex Systems), National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina; Psicology Department, School of Medicine, Austral University, Buenos Aires, Argentina
| | - Mariana Bendersky
- Living Anatomy Laboratory, Anatomy Department, School of Medicine, University of Buenos Aires (UBA), Buenos Aires, Argentina; ENyS (Studies in Neurosciences and Complex Systems), National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina; National University A. Jauretche (UNAJ), El Cruce Hospital Néstor Kirchner, Buenos Aires, Argentina
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Shekari E, Nozari N. A narrative review of the anatomy and function of the white matter tracts in language production and comprehension. Front Hum Neurosci 2023; 17:1139292. [PMID: 37051488 PMCID: PMC10083342 DOI: 10.3389/fnhum.2023.1139292] [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: 01/06/2023] [Accepted: 02/24/2023] [Indexed: 03/28/2023] Open
Abstract
Much is known about the role of cortical areas in language processing. The shift towards network approaches in recent years has highlighted the importance of uncovering the role of white matter in connecting these areas. However, despite a large body of research, many of these tracts' functions are not well-understood. We present a comprehensive review of the empirical evidence on the role of eight major tracts that are hypothesized to be involved in language processing (inferior longitudinal fasciculus, inferior fronto-occipital fasciculus, uncinate fasciculus, extreme capsule, middle longitudinal fasciculus, superior longitudinal fasciculus, arcuate fasciculus, and frontal aslant tract). For each tract, we hypothesize its role based on the function of the cortical regions it connects. We then evaluate these hypotheses with data from three sources: studies in neurotypical individuals, neuropsychological data, and intraoperative stimulation studies. Finally, we summarize the conclusions supported by the data and highlight the areas needing further investigation.
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Affiliation(s)
- Ehsan Shekari
- Department of Neuroscience, Iran University of Medical Sciences, Tehran, Iran
| | - Nazbanou Nozari
- Department of Psychology, Carnegie Mellon University, Pittsburgh, PA, United States
- Center for the Neural Basis of Cognition (CNBC), Pittsburgh, PA, United States
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Collée E, Vincent A, Visch-Brink E, De Witte E, Dirven C, Satoer D. Localization patterns of speech and language errors during awake brain surgery: a systematic review. Neurosurg Rev 2023; 46:38. [PMID: 36662312 PMCID: PMC9859901 DOI: 10.1007/s10143-022-01943-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 11/22/2022] [Accepted: 12/31/2022] [Indexed: 01/21/2023]
Abstract
Awake craniotomy with direct electrical stimulation (DES) is the standard treatment for patients with eloquent area gliomas. DES detects speech and language errors, which indicate functional boundaries that must be maintained to preserve quality of life. During DES, traditional object naming or other linguistic tasks such as tasks from the Dutch Linguistic Intraoperative Protocol (DuLIP) can be used. It is not fully clear which speech and language errors occur in which brain locations. To provide an overview and to update DuLIP, a systematic review was conducted in which 102 studies were included, reporting on speech and language errors and the corresponding brain locations during awake craniotomy with DES in adult glioma patients up until 6 July 2020. The current findings provide a crude overview on language localization. Even though subcortical areas are in general less often investigated intraoperatively, still 40% out of all errors was reported at the subcortical level and almost 60% at the cortical level. Rudimentary localization patterns for different error types were observed and compared to the dual-stream model of language processing and the DuLIP model. While most patterns were similar compared to the models, additional locations were identified for articulation/motor speech, phonology, reading, and writing. Based on these patterns, we propose an updated DuLIP model. This model can be applied for a more adequate "location-to-function" language task selection to assess different linguistic functions during awake craniotomy, to possibly improve intraoperative language monitoring. This could result in a better postoperative language outcome in the future.
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Affiliation(s)
- Ellen Collée
- Department of Neurosurgery, Erasmus MC University Medical Centre, Doctor Molewaterplein 40, NA2118, 3015, GD, Rotterdam, the Netherlands.
| | - Arnaud Vincent
- Department of Neurosurgery, Erasmus MC University Medical Centre, Doctor Molewaterplein 40, NA2118, 3015, GD, Rotterdam, the Netherlands
| | - Evy Visch-Brink
- Department of Neurosurgery, Erasmus MC University Medical Centre, Doctor Molewaterplein 40, NA2118, 3015, GD, Rotterdam, the Netherlands
| | - Elke De Witte
- Department of Neurosurgery, Erasmus MC University Medical Centre, Doctor Molewaterplein 40, NA2118, 3015, GD, Rotterdam, the Netherlands
| | - Clemens Dirven
- Department of Neurosurgery, Erasmus MC University Medical Centre, Doctor Molewaterplein 40, NA2118, 3015, GD, Rotterdam, the Netherlands
| | - Djaina Satoer
- Department of Neurosurgery, Erasmus MC University Medical Centre, Doctor Molewaterplein 40, NA2118, 3015, GD, Rotterdam, the Netherlands
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Karpychev V, Bolgina T, Malytina S, Zinchenko V, Ushakov V, Ignatyev G, Dragoy O. Greater volumes of a callosal sub-region terminating in posterior language-related areas predict a stronger degree of language lateralization: A tractography study. PLoS One 2022; 17:e0276721. [PMID: 36520829 PMCID: PMC9754228 DOI: 10.1371/journal.pone.0276721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 10/13/2022] [Indexed: 12/23/2022] Open
Abstract
Language lateralization is the most intriguing trait of functional asymmetry for cognitive functions. Nowadays, ontogenetic determinants of this trait are largely unknown, but there are efforts to find its anatomical correlates. In particular, a white matter interhemispheric connection-the corpus callosum-has been proposed as such. In the present study, we aimed to find the association between the degree of language lateralization and metrics of the callosal sub-regions. We applied a sentence completion fMRI task to measure the degree of language lateralization in a group of healthy participants balanced for handedness. We obtained the volumes and microstructural properties of callosal sub-regions with two tractography techniques, diffusion tensor imaging (DTI) and constrained spherical deconvolution (CSD). The analysis of DTI-based metrics did not reveal any significant associations with language lateralization. In contrast, CSD-based analysis revealed that the volumes of a callosal sub-region terminating in the core posterior language-related areas predict a stronger degree of language lateralization. This finding supports the specific inhibitory model implemented through the callosal fibers projecting into the core posterior language-related areas in the degree of language lateralization, with no relevant contribution of other callosal sub-regions.
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Affiliation(s)
| | | | | | - Victoria Zinchenko
- Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of the Moscow Department of Health, Moscow, Russia
| | - Vadim Ushakov
- National Research Center “Kurchatov Institute”, Moscow, Russia
- Institute for Advanced Brain Studies, Lomonosov Moscow State University, Moscow, Russia
| | | | - Olga Dragoy
- HSE University, Moscow, Russia
- Institute of Linguistics, Russian Academy of Sciences, Moscow, Russia
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12
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Fiore G, Abete-Fornara G, Forgione A, Tariciotti L, Pluderi M, Borsa S, Bana C, Cogiamanian F, Vergari M, Conte V, Caroli M, Locatelli M, Bertani GA. Indication and eligibility of glioma patients for awake surgery: A scoping review by a multidisciplinary perspective. Front Oncol 2022; 12:951246. [PMID: 36212495 PMCID: PMC9532968 DOI: 10.3389/fonc.2022.951246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
Background Awake surgery (AS) permits intraoperative mapping of cognitive and motor functions, allowing neurosurgeons to tailor the resection according to patient functional boundaries thus preserving long-term patient integrity and maximizing extent of resection. Given the increased risks of the awake scenario, the growing importance of AS in surgical practice favored the debate about patient selection concerning both indication and eligibility criteria. Nonetheless, a systematic investigation is lacking in the literature. Objective To provide a scoping review of the literature concerning indication and eligibility criteria for AS in patients with gliomas to answer the questions:1) "What are the functions mostly tested during AS protocols?" and 2) "When and why should a patient be excluded from AS?". Materials and methods Pertinent studies were retrieved from PubMed, PsycArticles and Cochrane Central Register of Controlled Trials (CENTRAL), published until April 2021 according to the PRISMA Statement Extension for Scoping Reviews. The retrieved abstracts were checked for the following features being clearly stated: 1) the population described as being composed of glioma(LGG or HGG) patients; 2) the paper had to declare which cognitive or sensorimotor function was tested, or 2bis)the decisional process of inclusion/exclusion for AS had to be described from at least one of the following perspectives: neurosurgical, neurophysiological, anesthesiologic and psychological/neuropsychological. Results One hundred and seventy-eight studies stated the functions being tested on 8004 patients. Language is the main indication for AS, even if tasks and stimulation techniques changed over the years. It is followed by monitoring of sensorimotor and visuospatial pathways. This review demonstrated an increasing interest in addressing other superior cognitive functions, such as executive functions and emotions. Forty-five studies on 2645 glioma patients stated the inclusion/exclusion criteria for AS eligibility. Inability to cooperate due to psychological disorder(i.e. anxiety),severe language deficits and other medical conditions(i.e.cardiovascular diseases, obesity, etc.)are widely reported as exclusion criteria for AS. However, a very few papers gave scale exact cut-off. Likewise, age and tumor histology are not standardized parameters for patient selection. Conclusion Given the broad spectrum of functions that might be safely and effectively monitored via AS, neurosurgeons and their teams should tailor intraoperative testing on patient needs and background as well as on tumor location and features. Whenever the aforementioned exclusion criteria are not fulfilled, AS should be strongly considered for glioma patients.
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Affiliation(s)
- Giorgio Fiore
- Department of Neurosurgery, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Giorgia Abete-Fornara
- Department of Neurosurgery, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Arianna Forgione
- Department of Neurosurgery, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Leonardo Tariciotti
- Department of Neurosurgery, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Mauro Pluderi
- Department of Neurosurgery, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Stefano Borsa
- Department of Neurosurgery, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Cristina Bana
- Department of Neuropathophysiology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Filippo Cogiamanian
- Department of Neuropathophysiology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Maurizio Vergari
- Department of Neuropathophysiology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Valeria Conte
- Neuro Intensive Care Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Manuela Caroli
- Department of Neurosurgery, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Marco Locatelli
- Department of Neurosurgery, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Giulio Andrea Bertani
- Department of Neurosurgery, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- *Correspondence: Giulio Andrea Bertani,
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13
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Segregated circuits for phonemic and semantic fluency: A novel patient-tailored disconnection study. Neuroimage Clin 2022; 36:103149. [PMID: 35970113 PMCID: PMC9400120 DOI: 10.1016/j.nicl.2022.103149] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 08/05/2022] [Accepted: 08/07/2022] [Indexed: 12/14/2022]
Abstract
Phonemic and semantic fluency are neuropsychological tests widely used to assess patients' language and executive abilities and are highly sensitive tests in detecting language deficits in glioma patients. However, the networks that are involved in these tasks could be distinct and suggesting either a frontal (phonemic) or temporal (semantic) involvement. 42 right-handed patients (26 male, mean age = 52.5 years, SD=±13.3) were included in this retrospective study. Patients underwent awake (54.8%) or asleep (45.2%) surgery for low-grade (16.7%) or high-grade-glioma (83.3%) in the frontal (64.3%) or temporal lobe (35.7%) of the left (50%) or right (50%) hemisphere. Pre-operative tractography was reconstructed for each patient, with segmentation of the inferior fronto-occipital fasciculus (IFOF), arcuate fasciculus (AF), uncinate fasciculus (UF), inferior longitudinal fasciculus (ILF), third branch of the superior longitudinal fasciculus (SLF-III), frontal aslant tract (FAT), and cortico-spinal tract (CST). Post-operative percentage of damage and disconnection of each tract, based on the patients' surgical cavities, were correlated with verbal fluencies scores at one week and one month after surgery. Analyses of differences between fluency scores at these timepoints (before surgery, one week and one month after surgery) were performed; lesion-symptom mapping was used to identify the correlation between cortical areas and post-operative scores. Immediately after surgery, a transient impairment of verbal fluency was observed, that improved within a month. Left hemisphere lesions were related to a worse verbal fluency performance, being a damage to the left superior frontal or temporal gyri associated with phonemic or semantic fluency deficit, respectively. At a subcortical level, disconnection analyses revealed that fluency scores were associated to the involvement of the left FAT and the left frontal part of the IFOF for phonemic fluency, and the association was still present one month after surgery. For semantic fluency, the correlation between post-surgery performance emerged for the left AF, UF, ILF and the temporal part of the IFOF, but disappeared at the follow-up. This approach based on the patients' pre-operative tractography, allowed to trace for the first time a dissociation between white matter pathways integrity and verbal fluency after surgery for glioma resection. Our results confirm the involvement of a frontal anterior pathway for phonemic fluency and a ventral temporal pathway for semantic fluency. Finally, our longitudinal results suggest that the frontal executive pathway requires a longer interval to recover compared to the semantic one.
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14
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Gkiatis K, Garganis K, Benjamin CF, Karanasiou I, Kondylidis N, Harushukuri J, Matsopoulos GK. Standardization of presurgical language fMRI in Greek population: Mapping of six critical regions. Brain Behav 2022; 12:e2609. [PMID: 35587046 PMCID: PMC9226851 DOI: 10.1002/brb3.2609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 04/04/2022] [Accepted: 04/12/2022] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Mapping the language system has been crucial in presurgical evaluation especially when the area to be resected is near relevant eloquent cortex. Functional magnetic resonance imaging (fMRI) proved to be a noninvasive alternative of Wada test that can account not only for language lateralization but also for localization when appropriate tasks and MRI sequences are being used. The tasks utilized during the fMRI acquisition are playing a crucial role as to which areas will be activated. Recent studies demonstrated that key language regions exist outside the classical model of "Wernicke-Lichtheim-Geschwind," but sensitive tasks must take place in order to be revealed. On top of that, the tasks should be in mother tongue for appropriate language mapping to be possible. METHODS For that reason, in this study, we adopted an English protocol that can reveal six language critical regions even in clinical setups and we translated it into Greek to prove its efficacy in Greek population. Twenty healthy right-handed volunteers were recruited and performed the fMRI acquisition in a standardized manner. RESULTS Results demonstrated that all six language critical regions were activated in all subjects as well as the group mean map. Furthermore, activations were found in the thalamus, the caudate, and the contralateral cerebellum. CONCLUSION In this study, we standardized an fMRI protocol in Greek and proved that it can reliably activate six language critical regions. We have validated its efficacy for presurgical language mapping in Greek patients capable to be adopted in clinical setup.
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Affiliation(s)
- Kostakis Gkiatis
- School of Electrical and Computer Engineering, National Technical University of Athens, Athens, Greece.,Epilepsy Monitoring Unit, St. Luke's Hospital, Thessaloniki, Greece
| | | | - Christopher F Benjamin
- Department of Neurology, Comprehensive Epilepsy Center, Yale School of Medicine, New Haven, Connecticut, USA.,Department of Neurosurgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Irene Karanasiou
- School of Electrical and Computer Engineering, National Technical University of Athens, Athens, Greece
| | | | - Jean Harushukuri
- Epilepsy Monitoring Unit, St. Luke's Hospital, Thessaloniki, Greece
| | - George K Matsopoulos
- School of Electrical and Computer Engineering, National Technical University of Athens, Athens, Greece
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15
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Valls Carbo A, Reid RI, Tosakulwong N, Weigand SD, Duffy JR, Clark HM, Utianski RL, Botha H, Machulda MM, Strand EA, Schwarz CG, Jack CR, Josephs KA, Whitwell JL. Tractography of supplementary motor area projections in progressive speech apraxia and aphasia. Neuroimage Clin 2022; 34:102999. [PMID: 35395498 PMCID: PMC8987652 DOI: 10.1016/j.nicl.2022.102999] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 03/11/2022] [Accepted: 03/28/2022] [Indexed: 12/02/2022]
Abstract
Degeneration of SMA white matter tracts occurs in progressive apraxia of speech. SMA commissural, putamen and precentral tracts were associated with speech apraxia. Agrammatism was associated with SMA-prefrontal and frontal aslant tracts. Tract profile analysis suggests different disease epicenters across syndromes.
Progressive apraxia of speech (AOS) is a motor speech disorder affecting the ability to produce phonetically or prosodically normal speech. Progressive AOS can present in isolation or co-occur with agrammatic aphasia and is associated with degeneration of the supplementary motor area. We aimed to assess breakdowns in structural connectivity from the supplementary motor area in patients with any combination of progressive AOS and/or agrammatic aphasia to determine which supplementary motor area tracts are specifically related to these clinical symptoms. Eighty-four patients with progressive AOS or progressive agrammatic aphasia were recruited by the Neurodegenerative Research Group and underwent neurological, speech/language, and neuropsychological testing, as well as 3 T diffusion magnetic resonance imaging. Of the 84 patients, 36 had apraxia of speech in isolation (primary progressive apraxia of speech, PPAOS), 40 had apraxia of speech and agrammatic aphasia (AOS-PAA), and eight had agrammatic aphasia in isolation (progressive agrammatic aphasia, PAA). Tractography was performed to identify 5 distinct tracts connecting to the supplementary motor area. Fractional anisotropy and mean diffusivity were assessed at 10 positions along the length of the tracts to construct tract profiles, and median profiles were calculated for each tract. In a case-control comparison, decreased fractional anisotropy and increased mean diffusivity were observed along the supplementary motor area commissural fibers in all three groups compared to controls. PPAOS also had abnormal diffusion in tracts from the supplementary motor area to the putamen, prefrontal cortex, Broca’s area (frontal aslant tract) and motor cortex, with greatest abnormalities observed closest to the supplementary motor area. The AOS-PAA group showed abnormalities in the same set of tracts, but with greater involvement of the supplementary motor area to prefrontal tract compared to PPAOS. PAA showed abnormalities in the left prefrontal and frontal aslant tracts compared to both other groups, with PAA showing greatest abnormalities furthest from the supplementary motor area. Severity of AOS correlated with tract metrics in the supplementary motor area commissural and motor cortex tracts. Severity of aphasia correlated with the frontal aslant and prefrontal tracts. These findings provide insight into how AOS and agrammatism are differentially related to disrupted diffusivity, with progressive AOS associated with abnormalities close to the supplementary motor area, and the frontal aslant and prefrontal tracts being particularly associated with agrammatic aphasia.
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Affiliation(s)
- Adrian Valls Carbo
- Department of Radiology, Mayo Clinic, Rochester, MN, United States; Department of Neurology, Hospital Clinico San Carlos, Health Research Institute "San Carlos" (IdISCC), Universidad Complutense de Madrid, Madrid, Spain
| | - Robert I Reid
- Department of Information Technology, Mayo Clinic, Rochester, MN, United States
| | - Nirubol Tosakulwong
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, United States
| | - Stephen D Weigand
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, United States
| | - Joseph R Duffy
- Department of Neurology, Mayo Clinic, Rochester, MN, United States
| | - Heather M Clark
- Department of Neurology, Mayo Clinic, Rochester, MN, United States
| | - Rene L Utianski
- Department of Neurology, Mayo Clinic, Rochester, MN, United States
| | - Hugo Botha
- Department of Neurology, Mayo Clinic, Rochester, MN, United States
| | - Mary M Machulda
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, United States
| | - Edythe A Strand
- Department of Neurology, Mayo Clinic, Rochester, MN, United States
| | | | - Clifford R Jack
- Department of Radiology, Mayo Clinic, Rochester, MN, United States
| | - Keith A Josephs
- Department of Neurology, Mayo Clinic, Rochester, MN, United States
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16
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Elin K, Malyutina S, Bronov O, Stupina E, Marinets A, Zhuravleva A, Dragoy O. A New Functional Magnetic Resonance Imaging Localizer for Preoperative Language Mapping Using a Sentence Completion Task: Validity, Choice of Baseline Condition, and Test–Retest Reliability. Front Hum Neurosci 2022; 16:791577. [PMID: 35431846 PMCID: PMC9006995 DOI: 10.3389/fnhum.2022.791577] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 03/04/2022] [Indexed: 11/24/2022] Open
Abstract
To avoid post-neurosurgical language deficits, intraoperative mapping of the language function in the brain can be complemented with preoperative mapping with functional magnetic resonance imaging (fMRI). The validity of an fMRI “language localizer” paradigm crucially depends on the choice of an optimal language task and baseline condition. This study presents a new fMRI “language localizer” in Russian using overt sentence completion, a task that comprehensively engages the language function by involving both production and comprehension at the word and sentence level. The paradigm was validated in 18 neurologically healthy volunteers who participated in two scanning sessions, for estimating test–retest reliability. For the first time, two baseline conditions for the sentence completion task were compared. At the group level, the paradigm significantly activated both anterior and posterior language-related regions. Individual-level analysis showed that activation was elicited most consistently in the inferior frontal regions, followed by posterior temporal regions and the angular gyrus. Test–retest reliability of activation location, as measured by Dice coefficients, was moderate and thus comparable to previous studies. Test–retest reliability was higher in the frontal than temporo-parietal region and with the most liberal statistical thresholding compared to two more conservative thresholding methods. Lateralization indices were expectedly left-hemispheric, with greater lateralization in the frontal than temporo-parietal region, and showed moderate test-retest reliability. Finally, the pseudoword baseline elicited more extensive and more reliable activation, although the syllable baseline appears more feasible for future clinical use. Overall, the study demonstrated the validity and reliability of the sentence completion task for mapping the language function in the brain. The paradigm needs further validation in a clinical sample of neurosurgical patients. Additionally, the study contributes to general evidence on test–retest reliability of fMRI.
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Affiliation(s)
- Kirill Elin
- Center for Language and Brain, HSE University, Moscow, Russia
| | - Svetlana Malyutina
- Center for Language and Brain, HSE University, Moscow, Russia
- *Correspondence: Svetlana Malyutina,
| | - Oleg Bronov
- Department of Radiology, National Medical and Surgical Center Named After N.I. Pirogov, Moscow, Russia
| | | | - Aleksei Marinets
- Department of Radiology, National Medical and Surgical Center Named After N.I. Pirogov, Moscow, Russia
| | - Anna Zhuravleva
- Center for Language and Brain, HSE University, Moscow, Russia
| | - Olga Dragoy
- Center for Language and Brain, HSE University, Moscow, Russia
- Institute of Linguistics, Russian Academy of Sciences, Moscow, Russia
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17
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Burkhardt E, Kinoshita M, Herbet G. Functional anatomy of the frontal aslant tract and surgical perspectives. J Neurosurg Sci 2021; 65:566-580. [PMID: 33870673 DOI: 10.23736/s0390-5616.21.05344-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The frontal aslant tract (FAT) is an intralobar white matter fasciculus providing dense connections between the medial part of the superior frontal gyrus, in particular the pre-supplementary motor area (SMA) and the SMA proper, and the lateral part of the frontal lobe, especially the inferior frontal gyrus. Although this tract has been characterized belatedly, it has received important attention in recent years due notably to its increasingly evidenced role in the speech and language networks. As cerebral tumors frequently affect the frontal lobe, an improved knowledge of the functional anatomy of the FAT is mandatory to refine the way neurosurgeries are performed and to give the patients the best opportunities to recover after surgery. In this work, we first describe the spatial arrangement of the FAT and detail its cortical projections. We then provide a comprehensive review of the functions supposedly mediated by this transverse frontal connectivity. It is structured following a tripartite organization where the linguistic (i.e. speech and language), supralinguistic (i.e. functions that interact with speech and language: executive functions, working memory, and social communication) and extralinguistic implications (i.e. functions outside the linguistic domain: visuospatial processing, praxis and motor skills) are successively addressed. We lastly discussed this knowledge in the context of wide-awake neurosurgeries for brain tumors. We emphasize the need to evaluate thoroughly the functions conveyed by FAT by means of longitudinally-designed studies to first estimate its plasticity potential and then to determine which tasks should be selected to avoid lasting impairments due to its disconnective breakdown.
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Affiliation(s)
- Eléonor Burkhardt
- Praxiling, CNRS UMR 5267, Paul Valéry Montpellier 3 University, Montpellier, France
| | - Masashi Kinoshita
- Department of Neurosurgery, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Guillaume Herbet
- University of Montpellier, CNRS UMR5203, INSERM U1191, Institute of Functional Genomics, Montpellier, France - .,Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France
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18
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El Ouardi L. The Moroccan Arabic verb and noun test for language mapping (MAVNT-LP) under nTMS and DES. APPLIED NEUROPSYCHOLOGY-ADULT 2021; 29:1413-1424. [PMID: 33689513 DOI: 10.1080/23279095.2021.1883020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
To maximize tumor resection and minimize postoperative neurological sequelae, intraoperative Direct Electrical Stimulation (DES) coupled with preoperative Navigated Transcranial Magnetic Stimulation (nTMS) is adopted as a more valid procedure when a tumor is located in or near language-positive cortical and subcortical brain areas/networks. To map language functions peri- and intraoperatively, naming tasks are usually administered given their sensitivity and practicality in mapping language networks and their association with positive postoperative outcomes. Linguistic protocols designed for stimulation under nTMS are relatively scarce, and non-existent in the Arabic language. The present study attempts to fill these gaps by presenting the processes of development, piloting, and standardization of the first (Moroccan) Arabic object and action naming protocol for use preoperatively under nTMS, and intraoperatively under DES. The MAVNT-LP was developed in accordance with both DES and nTMS time requirements and was balanced for relevant psycholinguistic as well as intrinsic factors. The test underwent piloting on a population of 10 Moroccan Arabic (MA)-speaking individuals and was validated on a population of 50 participants. The standardized version of the test consisted of 61 nouns and 61 verbs. The 122 items included in the test were named accurately by at least 80% of the participants and had a high naming agreement. Correlations between psycholinguistic factors and lexical retrieval are reported and discussed. The MAVNT-LP was found to be a valid instrument for use in a clinical setting either as a planning tool or as a protocol used to stimulate eloquent brain areas under awake brain surgery.
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Affiliation(s)
- Loubna El Ouardi
- Applied Language and Culture Studies Lab, Chouaib Doukalli University, El Jadida, Morocco
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19
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Chien PJ, Friederici AD, Hartwigsen G, Sammler D. Intonation processing increases task-specific fronto-temporal connectivity in tonal language speakers. Hum Brain Mapp 2020; 42:161-174. [PMID: 32996647 PMCID: PMC7721241 DOI: 10.1002/hbm.25214] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 09/08/2020] [Accepted: 09/13/2020] [Indexed: 01/08/2023] Open
Abstract
Language comprehension depends on tight functional interactions between distributed brain regions. While these interactions are established for semantic and syntactic processes, the functional network of speech intonation – the linguistic variation of pitch – has been scarcely defined. Particularly little is known about intonation in tonal languages, in which pitch not only serves intonation but also expresses meaning via lexical tones. The present study used psychophysiological interaction analyses of functional magnetic resonance imaging data to characterise the neural networks underlying intonation and tone processing in native Mandarin Chinese speakers. Participants categorised either intonation or tone of monosyllabic Mandarin words that gradually varied between statement and question and between Tone 2 and Tone 4. Intonation processing induced bilateral fronto‐temporal activity and increased functional connectivity between left inferior frontal gyrus and bilateral temporal regions, likely linking auditory perception and labelling of intonation categories in a phonological network. Tone processing induced bilateral temporal activity, associated with the auditory representation of tonal (phonemic) categories. Together, the present data demonstrate the breadth of the functional intonation network in a tonal language including higher‐level phonological processes in addition to auditory representations common to both intonation and tone.
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Affiliation(s)
- Pei-Ju Chien
- International Max Planck Research School NeuroCom, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.,Otto Hahn Group 'Neural Bases of Intonation in Speech and Music', Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.,Lise Meitner Research Group 'Cognition and Plasticity', Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.,Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Angela D Friederici
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Gesa Hartwigsen
- Lise Meitner Research Group 'Cognition and Plasticity', Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Daniela Sammler
- Otto Hahn Group 'Neural Bases of Intonation in Speech and Music', Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
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