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Fatić S, Stanojević N, Jeličić L, Bilibajkić R, Marisavljević M, Maksimović S, Gavrilović A, Subotić M. Beta Spectral Power during Passive Listening in Preschool Children with Specific Language Impairment. Dev Neurosci 2024:1-14. [PMID: 38723615 DOI: 10.1159/000539135] [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: 09/03/2023] [Accepted: 04/18/2024] [Indexed: 06/19/2024] Open
Abstract
INTRODUCTION Children with specific language impairment (SLI) have difficulties in different speech and language domains. Electrophysiological studies have documented that auditory processing in children with SLI is atypical and probably caused by delayed and abnormal auditory maturation. During the resting state, or different auditory tasks, children with SLI show low or high beta spectral power, which could be a clinical correlate for investigating brain rhythms. METHODS The aim of this study was to examine the electrophysiological cortical activity of the beta rhythm while listening to words and nonwords in children with SLI in comparison to typical development (TD) children. The participants were 50 children with SLI, aged 4 and 5 years, and 50 age matched TD children. The children were divided into two subgroups according to age: (1) children 4 years of age; (2) children 5 years of age. RESULTS The older group differed from the younger group in beta auditory processing, with increased values of beta spectral power in the right frontal, temporal, and parietal regions. In addition, children with SLI have higher beta spectral power than TD children in the bilateral temporal regions. CONCLUSION Complex beta auditory activation in TD and SLI children indicates the presence of early changes in functional brain connectivity.
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Affiliation(s)
- Saška Fatić
- Cognitive Neuroscience Department, Research and Development Institute "Life Activities Advancement Institute,", Belgrade, Serbia
- Department of Speech, Language, and Hearing Sciences, Institute for Experimental Phonetics and Speech Pathology, Belgrade, Serbia
| | - Nina Stanojević
- Cognitive Neuroscience Department, Research and Development Institute "Life Activities Advancement Institute,", Belgrade, Serbia
- Department of Speech, Language, and Hearing Sciences, Institute for Experimental Phonetics and Speech Pathology, Belgrade, Serbia
| | - Ljiljana Jeličić
- Cognitive Neuroscience Department, Research and Development Institute "Life Activities Advancement Institute,", Belgrade, Serbia
- Department of Speech, Language, and Hearing Sciences, Institute for Experimental Phonetics and Speech Pathology, Belgrade, Serbia
| | - Ružica Bilibajkić
- Cognitive Neuroscience Department, Research and Development Institute "Life Activities Advancement Institute,", Belgrade, Serbia
| | - Maša Marisavljević
- Cognitive Neuroscience Department, Research and Development Institute "Life Activities Advancement Institute,", Belgrade, Serbia
- Department of Speech, Language, and Hearing Sciences, Institute for Experimental Phonetics and Speech Pathology, Belgrade, Serbia
| | - Slavica Maksimović
- Cognitive Neuroscience Department, Research and Development Institute "Life Activities Advancement Institute,", Belgrade, Serbia
- Department of Speech, Language, and Hearing Sciences, Institute for Experimental Phonetics and Speech Pathology, Belgrade, Serbia
| | - Aleksandar Gavrilović
- Faculty of Medical Sciences, Department of Neurology, University of Kragujevac, Kragujevac, Serbia
- Clinic of Neurology, Clinical Center Kragujevac, Kragujevac, Serbia
| | - Miško Subotić
- Cognitive Neuroscience Department, Research and Development Institute "Life Activities Advancement Institute,", Belgrade, Serbia
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Baron A, Wagley N, Hu X, Kovelman I. Neural Correlates of Morphosyntactic Processing in Spanish-English Bilingual Children: A Functional Near-Infrared Spectroscopy Study. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2023; 66:3500-3514. [PMID: 37643425 PMCID: PMC10558145 DOI: 10.1044/2023_jslhr-22-00598] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 02/20/2023] [Accepted: 05/16/2023] [Indexed: 08/31/2023]
Abstract
PURPOSE The aim of this study was to examine the effects of early bilingual exposure on Spanish-English bilingual children's neural organization of English morphosyntactic structures. This study examines how children's age and language experiences are related to morphosyntactic processing at the neural level. METHOD Eighty-one children (ages 6-11 years) completed an auditory sentence judgment task during functional near-infrared spectroscopy neuroimaging. The measure tapped into children's processing of early-acquired (present progressive -ing) and later-acquired (past tense -ed and third-person singular -s) English morphosyntactic structures, the primary language of academic instruction. RESULTS We observed effects of syntactic structure and age. Early-acquired morphemic structures elicited activation in the left inferior frontal gyrus, while the later-acquired structures elicited additional activations in the left middle temporal gyrus and superior temporal gyrus (STG). Younger children had a more distributed neural response, whereas older children had a more focal neural response. Finally, there was a trending association between children's English language use and left STG activation for later-acquired structures. CONCLUSION The findings inform theories of language and brain development by highlighting the mechanisms by which age and language experiences influence bilingual children's neural architecture for morphosyntactic processing.
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Affiliation(s)
- Alisa Baron
- Department of Communicative Disorders, The University of Rhode Island, Kingston
| | - Neelima Wagley
- Department of Psychology and Human Development, Vanderbilt University, Nashville, TN
| | - Xiaosu Hu
- Department of Biologic and Materials Sciences & Prosthodontics, University of Michigan, Ann Arbor
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Chen J, Xiao Y, Xu B, Zhang D. The developmental trajectory of task-related frontal EEG theta/beta ratio in childhood. Dev Cogn Neurosci 2023; 60:101233. [PMID: 36940533 PMCID: PMC10036884 DOI: 10.1016/j.dcn.2023.101233] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 03/06/2023] [Accepted: 03/15/2023] [Indexed: 03/18/2023] Open
Abstract
Attention control, the ability to focus on task-relevant information while blocking out irrelevant information, is crucial for successful task completion throughout development. However, the neurodevelopment of attention control during tasks remains underexplored, particularly from an electrophysiogical perpective. Therefore, the present study investigated the developmental trajectory of frontal TBR, a well-established EEG correlate of attention control, in a large sample of 5, 207 children aged 5-14 during a visuospatial working memory task. Results revealed that frontal TBR in tasks exhibited a different developmental trajectory (quadratic) compared to the baseline condition (linear). More importantly, we found that the association between task-related frontal TBR and age was modulated by task difficulty, with the age-related decrease in frontal TBR being more pronounced in more challenging conditions. Overall, by demonstrating a fine-grained age-related change in the frontal TBR based on a large dataset covering continuous age groups, our study provided electrophysiogical evidence about the maturation of attention control, suggesting potentially distinct developmental paths for attention control across the baseline and task conditions.
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Affiliation(s)
- Jingjing Chen
- Dept. of Psychology, School of Social Sciences, Tsinghua University, Beijing, China; Tsinghua Laboratory of Brain and Intelligence, Tsinghua University, Beijing, China
| | - Yaheng Xiao
- Dept. of Psychology, School of Social Sciences, Tsinghua University, Beijing, China; Tsinghua Laboratory of Brain and Intelligence, Tsinghua University, Beijing, China
| | - Bing Xu
- Beijing CUSoft Co., Ltd., Beijing, China
| | - Dan Zhang
- Dept. of Psychology, School of Social Sciences, Tsinghua University, Beijing, China; Tsinghua Laboratory of Brain and Intelligence, Tsinghua University, Beijing, China.
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4
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Klein CC, Berger P, Goucha T, Friederici AD, Grosse Wiesmann C. Children’s syntax is supported by the maturation of BA44 at 4 years, but of the posterior STS at 3 years of age. Cereb Cortex 2022; 33:5426-5435. [PMID: 36408641 PMCID: PMC10152089 DOI: 10.1093/cercor/bhac430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 09/07/2022] [Accepted: 09/26/2022] [Indexed: 11/22/2022] Open
Abstract
Abstract
Within the first years of life, children learn major aspects of their native language. However, the ability to process complex sentence structures, a core faculty in human language called syntax, emerges only slowly. A milestone in syntax acquisition is reached around the age of 4 years, when children learn a variety of syntactic concepts. Here, we ask which maturational changes in the child’s brain underlie the emergence of syntactically complex sentence processing around this critical age. We relate markers of cortical brain maturation to 3- and 4-year-olds’ sentence processing in contrast to other language abilities. Our results show that distinct cortical brain areas support sentence processing in the two age groups. Sentence production abilities at 3 years were associated with increased surface area in the most posterior part of the left superior temporal sulcus, whereas 4-year-olds showed an association with cortical thickness in the left posterior part of Broca’s area, i.e. BA44. The present findings suggest that sentence processing abilities rely on the maturation of distinct cortical regions in 3- compared to 4-year-olds. The observed shift to more mature regions involved in processing syntactically complex sentences may underlie behavioral milestones in syntax acquisition at around 4 years.
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Affiliation(s)
- Cheslie C Klein
- Max Planck Institute for Human Cognitive and Brain Sciences Department of Neuropsychology, , Stephanstraße 1a, Leipzig 04103 , Germany
- Max Planck Institute for Human Cognitive and Brain Sciences Research Group Milestones of Early Cognitive Development, , Stephanstraße 1a, Leipzig 04103 , Germany
| | - Philipp Berger
- Max Planck Institute for Human Cognitive and Brain Sciences Department of Neuropsychology, , Stephanstraße 1a, Leipzig 04103 , Germany
- Max Planck Institute for Human Cognitive and Brain Sciences Research Group Milestones of Early Cognitive Development, , Stephanstraße 1a, Leipzig 04103 , Germany
| | - Tomás Goucha
- Max Planck Institute for Human Cognitive and Brain Sciences Department of Neuropsychology, , Stephanstraße 1a, Leipzig 04103 , Germany
| | - Angela D Friederici
- Max Planck Institute for Human Cognitive and Brain Sciences Department of Neuropsychology, , Stephanstraße 1a, Leipzig 04103 , Germany
| | - Charlotte Grosse Wiesmann
- Max Planck Institute for Human Cognitive and Brain Sciences Research Group Milestones of Early Cognitive Development, , Stephanstraße 1a, Leipzig 04103 , Germany
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Yu M, Song Y, Liu J. The posterior middle temporal gyrus serves as a hub in syntactic comprehension: A model on the syntactic neural network. BRAIN AND LANGUAGE 2022; 232:105162. [PMID: 35908340 DOI: 10.1016/j.bandl.2022.105162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 06/18/2022] [Accepted: 07/21/2022] [Indexed: 06/15/2023]
Abstract
Neuroimaging studies have revealed a distributed neural network involving multiple fronto-temporal regions that are active during syntactic processing. Here, we investigated how these regions work collaboratively to support syntactic comprehension by examining the behavioral relevance of the global functional integration of the syntax network (SN). We found that individuals with a stronger resting-state within-network integration in the left posterior middle temporal gyrus (lpMTG) were better at syntactic comprehension. Furthermore, the pair-wise functional connectivity between the lpMTG and the Broca's area, the middle frontal gyrus, and the angular and supramarginal gyri was positively correlated with participants' syntactic processing ability. In short, our study reveals the behavioral significance of intrinsic functional integration of the SN in syntactic comprehension, and provides empirical evidence for the hub-like role of the lpMTG. We proposed a neural model for syntactic comprehension highlighting the hub of the SN and its interactions with other regions in the network.
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Affiliation(s)
- Mengxia Yu
- Bilingual Cognition and Development Lab, Center for Linguistics and Applied Linguistics, Guangdong University of Foreign Studies, Guangzhou 510420, China
| | - Yiying Song
- Beijing Key Laboratory of Applied Experimental Psychology, Faculty of Psychology, Beijing Normal University, Beijing 100875, China.
| | - Jia Liu
- Department of Psychology & Tsinghua Laboratory of Brain and Intelligence, Tsinghua University, Beijing 100084, China
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Kruchinina OV, Stankova EP, Guillemard DM, Galperina EI. The Level of Passive Voice Comprehension in the 4–5 Years Old Russian Children Reflects in the ERP’s. J EVOL BIOCHEM PHYS+ 2022. [DOI: 10.1134/s0022093022020089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Tuckute G, Paunov A, Kean H, Small H, Mineroff Z, Blank I, Fedorenko E. Frontal language areas do not emerge in the absence of temporal language areas: A case study of an individual born without a left temporal lobe. Neuropsychologia 2022; 169:108184. [DOI: 10.1016/j.neuropsychologia.2022.108184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 12/07/2021] [Accepted: 02/15/2022] [Indexed: 10/19/2022]
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8
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Maguire MJ, Schneider JM, Melamed TC, Ralph YK, Poudel S, Raval VM, Mikhail D, Abel AD. Temporal and topographical changes in theta power between middle childhood and adolescence during sentence comprehension. Dev Cogn Neurosci 2021; 53:101056. [PMID: 34979479 PMCID: PMC8728578 DOI: 10.1016/j.dcn.2021.101056] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 12/15/2021] [Accepted: 12/29/2021] [Indexed: 11/08/2022] Open
Abstract
Time frequency analysis of the EEG is increasingly used to study the neural oscillations supporting language comprehension. Although this method holds promise for developmental research, most existing work focuses on adults. Theta power (4–8 Hz) in particular often corresponds to semantic processing of words in isolation and in ongoing text. Here we investigated how the timing and topography of theta engagement to individual words during written sentence processing changes between childhood and adolescence (8–15 years). Results show that topographically, the theta response is broadly distributed in children, occurring over left and right central-posterior and midline frontal areas, and localizes to left central-posterior areas by adolescence. There were two notable developmental shifts. First, in response to each word, early (150–300 msec) theta engagement over frontal areas significantly decreases between 8 and 9 years and 10–11 years. Second, throughout the sentence, theta engagement over the right parietal areas significantly decreases between 10 and 11 years and 12–13 years with younger children’s theta response remaining significantly elevated between words compared to adolescents’. We found no significant differences between 12 and 13 years and 14–15 years. These findings indicate that children’s engagement of the language network during sentence processing continues to change through middle childhood but stabilizes into adolescence.
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Affiliation(s)
- Mandy J Maguire
- University of Texas at Dallas Callier Center for Communication Disorders, 1966 Inwood Rd, Dallas, TX 75235, USA.
| | - Julie M Schneider
- Louisiana State University, 217 Thomas Boyd Hall, Baton Rouge, LA 70803, USA
| | - Tina C Melamed
- University of Texas at Dallas Callier Center for Communication Disorders, 1966 Inwood Rd, Dallas, TX 75235, USA
| | - Yvonne K Ralph
- University of Texas at Dallas Callier Center for Communication Disorders, 1966 Inwood Rd, Dallas, TX 75235, USA
| | - Sonali Poudel
- University of Texas at Dallas Callier Center for Communication Disorders, 1966 Inwood Rd, Dallas, TX 75235, USA
| | - Vyom M Raval
- University of Texas at Dallas Callier Center for Communication Disorders, 1966 Inwood Rd, Dallas, TX 75235, USA
| | - David Mikhail
- University of Texas at Dallas Callier Center for Communication Disorders, 1966 Inwood Rd, Dallas, TX 75235, USA
| | - Alyson D Abel
- San Diego State University, 5500 Campanile Dr, San Diego, CA 92182, USA
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9
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Qi T, Schaadt G, Friederici AD. Associated functional network development and language abilities in children. Neuroimage 2021; 242:118452. [PMID: 34358655 PMCID: PMC8463838 DOI: 10.1016/j.neuroimage.2021.118452] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 07/14/2021] [Accepted: 08/03/2021] [Indexed: 11/26/2022] Open
Abstract
During childhood, the brain is gradually converging to the efficient functional architecture observed in adults. How the brain's functional architecture evolves with age, particularly in young children, is however, not well understood. We examined the functional connectivity of the core language regions, in association with cortical growth and language abilities, in 175 young children in the age range of 4 to 9 years. We analyzed the brain's developmental changes using resting-state functional and T1-weighted structural magnetic resonance imaging data. The results showed increased functional connectivity strength with age between the pars triangularis of the left inferior frontal gyrus and left temporoparietal regions (cohen's d = 0.54, CI: 0.24 - 0.84), associated with children's language abilities. Stronger functional connectivity between bilateral prefrontal and temporoparietal regions was associated with better language abilities regardless of age. In addition, the stronger functional connectivity between the left inferior frontal and temporoparietal regions was associated with larger surface area and thinner cortical thickness in these regions, which in turn was associated with superior language abilities. Thus, using functional and structural brain indices, coupled with behavioral measures, we elucidate the association of functional language network development, language ability, and cortical growth, thereby adding to our understanding of the neural basis of language acquisition in young children.
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Affiliation(s)
- Ting Qi
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.
| | - Gesa Schaadt
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany; Department of Education and Psychology, Free University of Berlin, Berlin, Germany
| | - Angela D Friederici
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
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Reh R, Williams LJ, Todd RM, Ward LM. Warped rhythms: Epileptic activity during critical periods disrupts the development of neural networks for human communication. Behav Brain Res 2020; 399:113016. [PMID: 33212087 DOI: 10.1016/j.bbr.2020.113016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 11/06/2020] [Accepted: 11/09/2020] [Indexed: 12/27/2022]
Abstract
It is well established that temporal lobe epilepsy-the most common and well-studied form of epilepsy-can impair communication by disrupting social-emotional and language functions. In pediatric epilepsy, where seizures co-occur with the development of critical brain networks, age of onset matters: The earlier in life seizures begin, the worse the disruption in network establishment, resulting in academic hardship and social isolation. Yet, little is known about the processes by which epileptic activity disrupts developing human brain networks. Here we take a synthetic perspective-reviewing a range of research spanning studies on molecular and oscillatory processes to those on the development of large-scale functional networks-in support of a novel model of how such networks can be disrupted by epilepsy. We seek to bridge the gap between research on molecular processes, on the development of human brain circuitry, and on clinical outcomes to propose a model of how epileptic activity disrupts brain development.
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Affiliation(s)
- Rebecca Reh
- University of British Columbia, Department of Psychology, 2136 West Mall, Vancouver BC V6T 1Z4, Canada
| | - Lynne J Williams
- BC Children's Hospital MRI Research Facility, 4480 Oak Street, Vancouver, BC V6H 0B3, Canada
| | - Rebecca M Todd
- University of British Columbia, Department of Psychology, 2136 West Mall, Vancouver BC V6T 1Z4, Canada; University of British Columbia, Djavad Mowafaghian Centre for Brain Health, 2215 Wesbrook Mall, Vancouver, BC V6T 1Z3, Canada.
| | - Lawrence M Ward
- University of British Columbia, Department of Psychology, 2136 West Mall, Vancouver BC V6T 1Z4, Canada; University of British Columbia, Djavad Mowafaghian Centre for Brain Health, 2215 Wesbrook Mall, Vancouver, BC V6T 1Z3, Canada
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Foley E, Wood AG, Furlong PL, Walsh AR, Kearney S, Bill P, Hillebrand A, Seri S. Mapping language networks and their association with verbal abilities in paediatric epilepsy using MEG and graph analysis. Neuroimage Clin 2020; 27:102265. [PMID: 32413809 PMCID: PMC7226893 DOI: 10.1016/j.nicl.2020.102265] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 03/26/2020] [Accepted: 03/26/2020] [Indexed: 10/26/2022]
Abstract
Recent theoretical models of language have emphasised the importance of integration within distributed networks during language processing. This is particularly relevant to young patients with epilepsy, as the topology of the functional network and its dynamics may be altered by the disease, resulting in reorganisation of functional language networks. Thus, understanding connectivity within the language network in patients with epilepsy could provide valuable insights into healthy and pathological brain function, particularly when combined with clinical correlates. The objective of this study was to investigate interactions within the language network in a paediatric population of epilepsy patients using measures of MEG phase synchronisation and graph-theoretical analysis, and to examine their association with language abilities. Task dependent increases in connectivity were observed in fronto-temporal networks during verb generation across a group of 22 paediatric patients (9 males and 13 females; mean age 14 years). Differences in network connectivity were observed between patients with typical and atypical language representation and between patients with good and poor language abilities. In addition, node centrality in left frontal and temporal regions was significantly associated with language abilities, where patients with good language abilities had significantly higher node centrality within inferior frontal and superior temporal regions of the left hemisphere, compared to patients with poor language abilities. Our study is one of the first to apply task-based measures of MEG network synchronisation in paediatric epilepsy, and we propose that these measures of functional connectivity and node centrality could be used as tools to identify critical regions of the language network prior to epilepsy surgery.
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Affiliation(s)
- Elaine Foley
- School of Life and Health Sciences, Aston Brain Centre, Aston University, Birmingham, UK.
| | - Amanda G Wood
- School of Life and Health Sciences, Aston Brain Centre, Aston University, Birmingham, UK; School of Psychology, Faculty of Health, Melbourne Burwood Campus, Deakin University, Geelong, Victoria, Australia
| | - Paul L Furlong
- School of Life and Health Sciences, Aston Brain Centre, Aston University, Birmingham, UK
| | - A Richard Walsh
- Children's Epilepsy Surgery Service, Birmingham Women's and Children's Hospital, Birmingham, UK
| | - Shauna Kearney
- Children's Epilepsy Surgery Service, Birmingham Women's and Children's Hospital, Birmingham, UK
| | - Peter Bill
- Children's Epilepsy Surgery Service, Birmingham Women's and Children's Hospital, Birmingham, UK
| | - Arjan Hillebrand
- Department of Clinical Neurophysiology and MEG Center, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, the Netherlands
| | - Stefano Seri
- School of Life and Health Sciences, Aston Brain Centre, Aston University, Birmingham, UK; Children's Epilepsy Surgery Service, Birmingham Women's and Children's Hospital, Birmingham, UK
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Herbet G, Duffau H. Revisiting the Functional Anatomy of the Human Brain: Toward a Meta-Networking Theory of Cerebral Functions. Physiol Rev 2020; 100:1181-1228. [PMID: 32078778 DOI: 10.1152/physrev.00033.2019] [Citation(s) in RCA: 123] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
For more than one century, brain processing was mainly thought in a localizationist framework, in which one given function was underpinned by a discrete, isolated cortical area, and with a similar cerebral organization across individuals. However, advances in brain mapping techniques in humans have provided new insights into the organizational principles of anatomo-functional architecture. Here, we review recent findings gained from neuroimaging, electrophysiological, as well as lesion studies. Based on these recent data on brain connectome, we challenge the traditional, outdated localizationist view and propose an alternative meta-networking theory. This model holds that complex cognitions and behaviors arise from the spatiotemporal integration of distributed but relatively specialized networks underlying conation and cognition (e.g., language, spatial cognition). Dynamic interactions between such circuits result in a perpetual succession of new equilibrium states, opening the door to considerable interindividual behavioral variability and to neuroplastic phenomena. Indeed, a meta-networking organization underlies the uniquely human propensity to learn complex abilities, and also explains how postlesional reshaping can lead to some degrees of functional compensation in brain-damaged patients. We discuss the major implications of this approach in fundamental neurosciences as well as for clinical developments, especially in neurology, psychiatry, neurorehabilitation, and restorative neurosurgery.
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Affiliation(s)
- Guillaume Herbet
- Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France; Team "Plasticity of Central Nervous System, Stem Cells and Glial Tumors," INSERM U1191, Institute of Functional Genomics, Montpellier, France; and University of Montpellier, Montpellier, France
| | - Hugues Duffau
- Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France; Team "Plasticity of Central Nervous System, Stem Cells and Glial Tumors," INSERM U1191, Institute of Functional Genomics, Montpellier, France; and University of Montpellier, Montpellier, France
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Long J, Xu J, Wang X, Li J, Rao S, Wu H, Kuang W. Altered Local Gyrification Index and Corresponding Functional Connectivity in Medication Free Major Depressive Disorder. Front Psychiatry 2020; 11:585401. [PMID: 33424661 PMCID: PMC7793885 DOI: 10.3389/fpsyt.2020.585401] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 11/24/2020] [Indexed: 02/05/2023] Open
Abstract
A lot of previous studies have documented that major depressive disorder (MDD) is a developmental disorder. The cortical surface measure, local gyrification index (LGI), can well reflect the fetal and early postnatal neurodevelopmental processes. Thus, LGI may provide new insight for the neuropathology of MDD. The previous studies only focused on the surface structural abnormality, but how the structural abnormality lead to functional connectivity changes is unexplored. In this study, we investigated LGI and corresponding functional connectivity difference in 28 medication-free MDD patients. We found significantly decreased LGI in left lingual gyrus (LING) and right posterior superior temporal sulcus (bSTS), and the changed LGI in bSTS was negatively correlated with disease onset age and anxiety scores. The following functional connectivity analyses identified decreased functional connectivities between LING and right LING, precentral gyrus, and middle temporal gyrus. The decreased functional connectivities were correlated with disease duration, onset, and depression symptoms. Our findings revealed abnormal LGI in LING and bSTS indicating that the abnormal developmental of visual and social cognition related brain areas may be an early biomarker for depression.
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Affiliation(s)
- Jiang Long
- Deparment of Psychiatry, West China Hospital, Sichuan University, Chengdu, China
| | - Jinping Xu
- Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Xue Wang
- Deparment of Psychiatry, West China Hospital, Sichuan University, Chengdu, China
| | - Jin Li
- Deparment of Psychiatry, West China Hospital, Sichuan University, Chengdu, China
| | - Shan Rao
- Deparment of Psychiatry, West China Hospital, Sichuan University, Chengdu, China
| | - Huawang Wu
- Department of Radiology, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Weihong Kuang
- Department of Psychiatry and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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Leminen M, Leminen A, Smolander S, Arkkila E, Shtyrov Y, Laasonen M, Kujala T. Quick reorganization of memory traces for morphologically complex words in young children. Neuropsychologia 2019; 138:107309. [PMID: 31857117 DOI: 10.1016/j.neuropsychologia.2019.107309] [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: 06/29/2018] [Revised: 10/10/2019] [Accepted: 12/15/2019] [Indexed: 10/25/2022]
Abstract
Formation of neural mechanisms for morphosyntactic processing in young children is still poorly understood. Here, we addressed neural processing and rapid online acquisition of familiar and unfamiliar combinations of morphemes. Three different types of morphologically complex words - derived, inflected, and novel (pseudostem + real suffix) - were presented in a passive listening setting to 16 typically developing 3-4-year old children (as part of a longitudinal Helsinki SLI follow-up study). The mismatch negativity (MMN) component of event-related potentials (ERP), an established index of long-term linguistic memory traces in the brain, was analysed separately for the initial and final periods of the exposure to these items. We found MMN response enhancement for the inflected words towards the end of the recording session, whereas no response change was observed for the derived or novel complex forms. This enhancement indicates rapid build-up of a new memory trace for the combination of real morphemes, suggesting a capacity for online formation of whole-form lexicalized representations as one of the morphological mechanisms in the developing brain. Furthermore, this enhancement increased with age, suggesting the development of automatic morphological processing circuits in the age range of 3-4 years.
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Affiliation(s)
- Miika Leminen
- Department of Otorhinolaryngology and Phoniatrics, Helsinki University Hospital and University of Helsinki, PO Box 250, FIN-00029, HUS, Finland; Cognitive Brain Research Unit, Department of Psychology and Logopedics, Faculty of Medicine, PO Box 21, FIN-00014, University of Helsinki, Finland.
| | - Alina Leminen
- Cognitive Brain Research Unit, Department of Psychology and Logopedics, Faculty of Medicine, PO Box 21, FIN-00014, University of Helsinki, Finland; Cognitive Science, Department of Digital Humanitiers, Faculty of Arts, PO Box 9, FIN-00014, University of Helsinki, Finland.
| | - Sini Smolander
- Department of Otorhinolaryngology and Phoniatrics, Helsinki University Hospital and University of Helsinki, PO Box 250, FIN-00029, HUS, Finland; Research Unit of Logopedics, PO Box 8000, FIN-90014, University of Oulu, Finland.
| | - Eva Arkkila
- Department of Otorhinolaryngology and Phoniatrics, Helsinki University Hospital and University of Helsinki, PO Box 250, FIN-00029, HUS, Finland.
| | - Yury Shtyrov
- Center of Functionally Integrative Neuroscience (CFIN), Institute for Clinical Medicine, Aarhus University, DK-8000, Aarhus C, Denmark; Laboratory of Behavioural Neurodynamics, St.Petersburg State University, Makarova emb, 6, St.Petersburg, 199034, Russian Federation.
| | - Marja Laasonen
- Department of Otorhinolaryngology and Phoniatrics, Helsinki University Hospital and University of Helsinki, PO Box 250, FIN-00029, HUS, Finland; Department of Psychology and Speech-Language Pathology, Faculty of Social Sciences, FIN-20014, University of Turku, Finland; Department of Psychology and Logopedics, Faculty of Clinical Medicine, PO Box 63, FIN-00014 University of Helsinki, Finland.
| | - Teija Kujala
- Cognitive Brain Research Unit, Department of Psychology and Logopedics, Faculty of Medicine, PO Box 21, FIN-00014, University of Helsinki, Finland.
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15
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Delvecchio G, Caletti E, Perlini C, Siri FM, Andreella A, Finos L, Bellani M, Fabbro F, Lasalvia A, Bonetto C, Cristofalo D, Scocco P, D'Agostino A, Torresani S, Imbesi M, Bellini F, Veronese A, Bressi C, Ruggeri M, Brambilla P. Altered syntactic abilities in first episode patients: An inner phenomenon characterizing psychosis. Eur Psychiatry 2019; 61:119-126. [PMID: 31442739 DOI: 10.1016/j.eurpsy.2019.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 08/01/2019] [Accepted: 08/02/2019] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Research has consistently shown that language abilities represent a core dimension of psychosis; however, to date, very little is known about syntactic comprehension performance in the early stages of psychosis. This study aims to compare the linguistic abilities involved in syntactic comprehension in a large group of First Episode Psychosis (FEP) patients and healthy controls (HCs). METHODS A multiple choice test of comprehension of syntax was administered to 218 FEP patients (166 non-affective FEP patients [FEP-NA] and 52 affective FEP patients [FEP-A]) and 106 HCs. All participants were asked to match a sentence they listen with one out of four vignettes on a pc screen. Only one vignette represents the stimulus target, while the others are grammatical or non-grammatical (visual) distractors. Both grammatical and non-grammatical errors and performance in different syntactic constructions were considered. RESULTS FEP committed greater number of errors in the majority of TCGB language domains compared to HCs. Moreover, FEP-NA patients committed significantly more non-grammatical (z = -3.2, p = 0.007), locative (z = -4.7, p < 0.001), passive-negative (z = -3.2, p = 0.02), and relative (z = -4.6, p < 0.001) errors compared to HCs as well as more passive-affirmative errors compared to both HCs (z = -4.3, p < 0.001) and FEP-A (z = 3.1, p = 0.04). Finally, we also found that both FEP-NA and FEP-A committed more grammatical (FEP-NA: z = -9.2, p < 0.001 and FEP-A: z = -4.4, p < 0.001), total (FEP-NA: z = -8.2, p < 0.001 and FEP-A: z = 3.9, p = 0.002), and active-negative (FEP-NA: z = -5.8, p < 0.001 and FEP-A: z = -3.5, p = 0.01) errors compared to HCs. CONCLUSIONS This study shows that the access to syntactic structures is already impaired in FEP patients, especially in those with FEP-NA, ultimately suggesting that language impairments represent a core and inner feature of psychosis even at early stages.
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Affiliation(s)
- Giuseppe Delvecchio
- University of Milan, Department of Pathophysiology and Transplantation, Milan, Italy
| | - Elisabetta Caletti
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Department of Neurosciences and Mental Health, Milan, Italy
| | - Cinzia Perlini
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Clinical Psychology, University of Verona, Italy
| | - Francesca Marzia Siri
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Department of Neurosciences and Mental Health, Milan, Italy
| | | | - Livio Finos
- Department of Developmental Psychology and Socialization, University of Padua, Italy
| | - Marcella Bellani
- UOC of Psychiatry, Azienda Ospedaliera Universitaria Integrata (AOUI) of Verona, Italy
| | - Franco Fabbro
- Department of Medicine, University of Udine, Udine, Italy
| | - Antonio Lasalvia
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Clinical Psychology, University of Verona, Italy; UOC of Psychiatry, Azienda Ospedaliera Universitaria Integrata (AOUI) of Verona, Italy
| | - Chiara Bonetto
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Clinical Psychology, University of Verona, Italy
| | - Doriana Cristofalo
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Clinical Psychology, University of Verona, Italy
| | - Paolo Scocco
- Department of Mental Health, AULSS 6 Euganea, Padua, Italy
| | - Armando D'Agostino
- Department of Health Sciences, San Paolo University Hospital, University of Milan, Milan, Italy
| | | | | | | | | | - Cinzia Bressi
- University of Milan, Department of Pathophysiology and Transplantation, Milan, Italy; Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Department of Neurosciences and Mental Health, Milan, Italy
| | - Mirella Ruggeri
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Clinical Psychology, University of Verona, Italy; UOC of Psychiatry, Azienda Ospedaliera Universitaria Integrata (AOUI) of Verona, Italy
| | - Paolo Brambilla
- University of Milan, Department of Pathophysiology and Transplantation, Milan, Italy; Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Department of Neurosciences and Mental Health, Milan, Italy.
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16
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Bernal B, Guillen M, Korman B. Nontask-Related Brain Lateralization Biomarkers in Children: The Asymmetry of Language Areas on Functional Connectivity Functional Magnetic Resonance Imaging. Brain Connect 2019; 8:321-332. [PMID: 30124344 DOI: 10.1089/brain.2017.0553] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
In this work, we will test the hypothesis that the connectivity of language areas in normal children is asymmetric between the hemispheres. Intrahemispheric region of interest (ROI)-to-ROI connectivity was assessed in 40 normal right-handed children. Asymmetries were assessed (1) between the hemispheres (global language connectivity); (2) between Brodmann areas (BAs) pairs (pairwise connectivity); and (3) between two homotopic BA (Global BA connectivity). Sixteen BAs were selected: 6, 7, 9, 19, 21, 22, 37, 38, 39, 40, 41, 42, 44, 45, 46, and 47. T scores for connectivity of each BA pair were ascertained using the MATLAB toolbox CONN. Lateralization index (LI) scores based on T-values were obtained. Only LIs with 2SD above the mean were considered as significant. Comparisons between T-value groups (per side and per BA) were performed utilizing double-sided T-tests. Null hypothesis was rejected for p < 0.05. There was not a statistical difference between global left and right connectivity strength (p = 0.40). There was significant pairwise connectivity asymmetry for the following pairs: BA7-BA44 (LI = 0.662); BA21-BA42 (LI = -0.616); BA21-BA40 (LI = -0.595); BA38-BA44 (LI = 0.470); BA39-BA44 (LI = -0.903); and BA42-BA47 (LI = -0.445). Language-related brain connectivity asymmetries have been demonstrated in a group of children and young adolescents. Two pairs related to Broca's area were left dominant (BA44-BA38 and BA44-BA7) and four pairs right dominant (BA42-BA47, BA39-BA44, BA21-BA40, and BA21-BA42).
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Affiliation(s)
- Byron Bernal
- 1 Brain Institute , Nicklaus Children's Hospital, Miami, Florida.,2 Department of Radiology, Florida International University , Miami, Florida.,3 Nicklaus Children's Hospital and Florida International University , Miami, Florida
| | - Magno Guillen
- 2 Department of Radiology, Florida International University , Miami, Florida.,3 Nicklaus Children's Hospital and Florida International University , Miami, Florida
| | - Brandon Korman
- 1 Brain Institute , Nicklaus Children's Hospital, Miami, Florida.,3 Nicklaus Children's Hospital and Florida International University , Miami, Florida
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17
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Qi T, Schaadt G, Cafiero R, Brauer J, Skeide MA, Friederici AD. The emergence of long-range language network structural covariance and language abilities. Neuroimage 2019; 191:36-48. [DOI: 10.1016/j.neuroimage.2019.02.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 01/28/2019] [Accepted: 02/05/2019] [Indexed: 01/12/2023] Open
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18
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Cheng C, Fan L, Xia X, Eickhoff SB, Li H, Li H, Chen J, Jiang T. Rostro-caudal organization of the human posterior superior temporal sulcus revealed by connectivity profiles. Hum Brain Mapp 2018; 39:5112-5125. [PMID: 30273447 DOI: 10.1002/hbm.24349] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 07/20/2018] [Accepted: 07/30/2018] [Indexed: 01/01/2023] Open
Abstract
The posterior superior temporal sulcus (pSTS) plays an important role in biological motion perception but is also thought to be essential for speech and facial processing. However, although there are many previous investigations of distinct functional modules within the pSTS, the functional organization of the pSTS in its full functional heterogeneity has not yet been established. Here we applied a connectivity-based parcellation strategy to delineate the human pSTS subregions based on distinct anatomical connectivity profiles and divided it into rostral and caudal subregions using diffusion tensor imaging. Subsequent multimodal connection pattern analyses revealed distinct subregional connectivity profiles. From this we inferred that the two subregions are involved in distinct functional circuits, the language processing loop and the cognition attention network. These results indicate a convergent functional architecture of the pSTS that can be revealed based on different types of connectivity and is reflected in different functions and interactions. In addition, when the subregions were performing their processing in the different functional circuits, we found asymmetry in the bilateral pSTS. Our findings may improve the understanding of the functional organization of the pSTS and provide new insights into its interactions and integration of information at the subregional level.
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Affiliation(s)
- Chen Cheng
- College of Computer Science and Technology, Taiyuan University of Technology, Taiyuan, China.,Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Lingzhong Fan
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Xiaoluan Xia
- College of Computer Science and Technology, Taiyuan University of Technology, Taiyuan, China.,Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Simon B Eickhoff
- Institute of Systems Neuroscience, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.,Institute of Neuroscience and Medicine, Brain & Behaviour (INM-7), Research Centre Jülich, Jülich, Germany
| | - Hai Li
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Haifang Li
- College of Computer Science and Technology, Taiyuan University of Technology, Taiyuan, China
| | - Junjie Chen
- College of Computer Science and Technology, Taiyuan University of Technology, Taiyuan, China
| | - Tianzi Jiang
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China.,CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Automation, Chinese Academy of Sciences, Beijing, China.,National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing, China.,The Queensland Brain Institute, University of Queensland, Brisbane, Queensland, Australia
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19
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Youssofzadeh V, Vannest J, Kadis DS. fMRI connectivity of expressive language in young children and adolescents. Hum Brain Mapp 2018; 39:3586-3596. [PMID: 29717539 DOI: 10.1002/hbm.24196] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 04/09/2018] [Accepted: 04/13/2018] [Indexed: 01/21/2023] Open
Abstract
Studies of language representation in development have shown a bilateral distributed pattern of activation that becomes increasingly left-lateralized and focal from young childhood to adulthood. However, the level by which canonical and extra-canonical regions, including subcortical and cerebellar regions, contribute to language during development has not been well-characterized. In this study, we employed fMRI connectivity analyses (fcMRI) to characterize the distributed network supporting expressive language in a group of young children (age 4-6) and adolescents (age 16-18). We conducted an fcMRI analysis using seed-to-voxel and seed-to-ROI (region of interest) strategies to investigate interactions of left pars triangularis with other brain areas. The analyses showed significant interhemispheric connectivity in young children, with a minimal connectivity of the left pars triangularis to subcortical and cerebellar regions. In contrast, adolescents showed significant connectivity between the left IFG seed and left perisylvian cortex, left caudate and putamen, and regions of the right cerebellum. Importantly, fcMRI analyses indicated significant differences between groups at 3 anatomical clusters, including left IFG, left supramarginal gyrus, and right cerebellar crura, suggesting a role in the functional development of language.
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Affiliation(s)
- Vahab Youssofzadeh
- Pediatric Neuroimaging Research Consortium (PNRC), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.,Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.,Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee.,Neuroscience Institute, Le Bonheur Children's Hospital, Memphis, Tennessee
| | - Jennifer Vannest
- Pediatric Neuroimaging Research Consortium (PNRC), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.,Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.,College of Medicine, Department of Pediatrics, University of Cincinnati, Cincinnati, Ohio
| | - Darren S Kadis
- Pediatric Neuroimaging Research Consortium (PNRC), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.,Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.,College of Medicine, Department of Pediatrics, University of Cincinnati, Cincinnati, Ohio
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20
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Friederici AD, Chomsky N, Berwick RC, Moro A, Bolhuis JJ. Language, mind and brain. Nat Hum Behav 2017; 1:713-722. [DOI: 10.1038/s41562-017-0184-4] [Citation(s) in RCA: 137] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 07/21/2017] [Indexed: 11/10/2022]
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21
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Li Q, Shi L, Lu G, Yu HL, Yeung FK, Wong NK, Sun L, Liu K, Yew D, Pan F, Wang DF, Sham PC. Chronic Ketamine Exposure Causes White Matter Microstructural Abnormalities in Adolescent Cynomolgus Monkeys. Front Neurosci 2017; 11:285. [PMID: 28579941 PMCID: PMC5437169 DOI: 10.3389/fnins.2017.00285] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 05/02/2017] [Indexed: 01/05/2023] Open
Abstract
Acute and repeated exposures to ketamine mimic aspects of positive, negative, and cognitive symptoms of schizophrenia in humans. Recent studies by our group and others have shown that chronicity of ketamine use may be a key element for establishing a more valid model of cognitive symptoms of schizophrenia. However, current understanding on the long-term consequences of ketamine exposure on brain circuits has remained incomplete, particularly with regard to microstructural changes of white matter tracts that underpin the neuropathology of schizophrenia. Thus, the present study aimed to expand on previous investigations by examining causal effects of repeated ketamine exposure on white matter integrity in a non-human primate model. Ketamine or saline (control) was administered intravenously for 3 months to male adolescent cynomolgus monkeys (n = 5/group). Diffusion tensor imaging (DTI) experiments were performed and tract-based spatial statistics (TBSS) was used for data analysis. Fractional anisotropy (FA) was quantified across the whole brain. Profoundly reduced FA on the right side of sagittal striatum, posterior thalamic radiation (PTR), retrolenticular limb of the internal capsule (RLIC) and superior longitudinal fasciculus (SLF), and on the left side of PTR, middle temporal gyrus and inferior frontal gyrus were observed in the ketamine group compared to controls. Diminished white matter integrity found in either fronto-thalamo-temporal or striato-thalamic connections with tracts including the SLF, PTR, and RLIC lends support to similar findings from DTI studies on schizophrenia in humans. This study suggests that chronic ketamine exposure is a useful pharmacological paradigm that might provide translational insights into the pathophysiology and treatment of schizophrenia.
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Affiliation(s)
- Qi Li
- Department of Psychiatry, The University of Hong KongHong Kong, Hong Kong.,State Key Laboratory for Cognitive and Brain Sciences, The University of Hong KongHong Kong, Hong Kong.,The University of Hong Kong Shenzhen Institute of Research and Innovation (HKU-SIRI), The University of Hong KongHong Kong, Hong Kong
| | - Lin Shi
- Department of Medicine and Therapeutics, Chinese University of Hong KongHong Kong, Hong Kong.,Chow Yuk Ho Center of Innovative Technology for Medicine, Chinese University of Hong KongHong Kong, Hong Kong
| | - Gang Lu
- School of Biomedical Sciences, Chinese University of Hong KongHong Kong, Hong Kong
| | - Hong-Luan Yu
- Department of Psychology, Qilu Hospital of Shandong UniversityJinan, China
| | - Fu-Ki Yeung
- Research Center for Medical Image Computing, Department of Imaging and Interventional Radiology, Chinese University of Hong KongHong Kong, Hong Kong
| | - Nai-Kei Wong
- Chemical Biology Laboratory for Infectious Diseases, Shenzhen Institute of Hepatology, The Third People's Hospital of ShenzhenShenzhen, China
| | - Lin Sun
- Department of Psychology, Weifang Medical UniversityWeifang, China
| | - Kai Liu
- Research Center for Medical Image Computing, Department of Imaging and Interventional Radiology, Chinese University of Hong KongHong Kong, Hong Kong
| | - David Yew
- School of Chinese Medicine, Chinese University of Hong KongHong Kong, Hong Kong
| | - Fang Pan
- Department of Medical Psychology, Shandong University School of MedicineJinan, China
| | - De-Feng Wang
- Research Center for Medical Image Computing, Department of Imaging and Interventional Radiology, Chinese University of Hong KongHong Kong, Hong Kong
| | - Pak C Sham
- Department of Psychiatry, The University of Hong KongHong Kong, Hong Kong.,State Key Laboratory for Cognitive and Brain Sciences, The University of Hong KongHong Kong, Hong Kong.,Genome Research Centre, The University of Hong KongHong Kong, Hong Kong
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22
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Youssofzadeh V, Williamson BJ, Kadis DS. Mapping Critical Language Sites in Children Performing Verb Generation: Whole-Brain Connectivity and Graph Theoretical Analysis in MEG. Front Hum Neurosci 2017; 11:173. [PMID: 28424604 PMCID: PMC5380724 DOI: 10.3389/fnhum.2017.00173] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 03/22/2017] [Indexed: 11/13/2022] Open
Abstract
A classic left frontal-temporal brain network is known to support language processes. However, the level of participation of constituent regions, and the contribution of extra-canonical areas, is not fully understood; this is particularly true in children, and in individuals who have experienced early neurological insult. In the present work, we propose whole-brain connectivity and graph-theoretical analysis of magnetoencephalography (MEG) source estimates to provide robust maps of the pediatric expressive language network. We examined neuromagnetic data from a group of typically-developing young children (n = 15, ages 4–6 years) and adolescents (n = 14, 16–18 years) completing an auditory verb generation task in MEG. All source analyses were carried out using a linearly-constrained minimum-variance (LCMV) beamformer. Conventional differential analyses revealed significant (p < 0.05, corrected) low-beta (13–23 Hz) event related desynchrony (ERD) focused in the left inferior frontal region (Broca’s area) in both groups, consistent with previous studies. Connectivity analyses were carried out in broadband (3–30 Hz) on time-course estimates obtained at the voxel level. Patterns of connectivity were characterized by phase locking value (PLV), and network hubs identified through eigenvector centrality (EVC). Hub analysis revealed the importance of left perisylvian sites, i.e., Broca’s and Wernicke’s areas, across groups. The hemispheric distribution of frontal and temporal lobe EVC values was asymmetrical in most subjects; left dominant EVC was observed in 20% of young children, and 71% of adolescents. Interestingly, the adolescent group demonstrated increased critical sites in the right cerebellum, left inferior frontal gyrus (IFG) and left putamen. Here, we show that whole brain connectivity and network analysis can be used to map critical language sites in typical development; these methods may be useful for defining the margins of eloquent tissue in neurosurgical candidates.
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Affiliation(s)
- Vahab Youssofzadeh
- Pediatric Neuroimaging Research Consortium (PNRC), Cincinnati Children's Hospital Medical CenterCincinnati, OH, USA.,Division of Neurology, Cincinnati Children's Hospital Medical CenterCincinnati, OH, USA
| | - Brady J Williamson
- Pediatric Neuroimaging Research Consortium (PNRC), Cincinnati Children's Hospital Medical CenterCincinnati, OH, USA.,Department of Psychology, University of CincinnatiCincinnati, OH, USA
| | - Darren S Kadis
- Pediatric Neuroimaging Research Consortium (PNRC), Cincinnati Children's Hospital Medical CenterCincinnati, OH, USA.,Division of Neurology, Cincinnati Children's Hospital Medical CenterCincinnati, OH, USA.,College of Medicine, Department of Pediatrics, University of CincinnatiCincinnati, OH, USA
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23
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The contributions of resting state and task-based functional connectivity studies to our understanding of adolescent brain network maturation. Neurosci Biobehav Rev 2016; 70:13-32. [DOI: 10.1016/j.neubiorev.2016.07.027] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 07/21/2016] [Accepted: 07/24/2016] [Indexed: 12/18/2022]
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24
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Functional organization of the language network in three- and six-year-old children. Neuropsychologia 2016; 98:24-33. [PMID: 27542319 PMCID: PMC5407357 DOI: 10.1016/j.neuropsychologia.2016.08.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 08/02/2016] [Accepted: 08/14/2016] [Indexed: 11/08/2022]
Abstract
The organization of the language network undergoes continuous changes during development as children learn to understand sentences. In the present study, functional magnetic resonance imaging and behavioral measures were utilized to investigate functional activation and functional connectivity (FC) in three-year-old (3yo) and six-year-old (6yo) children during sentence comprehension. Transitive German sentences varying the word order (subject-initial and object-initial) with case marking were presented auditorily. We selected children who were capable of processing the subject-initial sentences above chance level accuracy from each age group to ensure that we were tapping real comprehension. Both age groups showed a main effect of word order in the left posterior superior temporal gyrus (pSTG), with greater activation for object-initial compared to subject-initial sentences. However, age differences were observed in the FC between left pSTG and the left inferior frontal gyrus (IFG). The 6yo group showed stronger FC between the left pSTG and Brodmann area (BA) 44 of the left IFG compared to the 3yo group. For the 3yo group, in turn, the FC between left pSTG and left BA 45 was stronger than with left BA 44. Our study demonstrates that while task-related activation was comparable, the small behavioral differences between age groups were reflected in the underlying functional organization revealing the ongoing development of the neural language network. We examined functional connectivity of sentence processing in 3- and 6-year-olds. Performance-matched age groups activated left pSTG for processing complex syntax. 6-year-olds had stronger connectivity between left BA44 and pSTG than 3-year-olds. 3-year-olds had greater connectivity between left BA45 and pSTG than BA44 and pSTG. Functional connectivity results could be related to behavioral performance.
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25
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Brauer J, Xiao Y, Poulain T, Friederici AD, Schirmer A. Frequency of Maternal Touch Predicts Resting Activity and Connectivity of the Developing Social Brain. Cereb Cortex 2016; 26:3544-52. [PMID: 27230216 PMCID: PMC4961023 DOI: 10.1093/cercor/bhw137] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Previous behavioral research points to a positive relationship between maternal touch and early social development. Here, we explored the brain correlates of this relationship. The frequency of maternal touch was recorded for 43 five-year-old children during a 10 min standardized play session. Additionally, all children completed a resting-state functional magnetic resonance imaging session. Investigating the default mode network revealed a positive relation between the frequency of maternal touch and activity in the right posterior superior temporal sulcus (pSTS) extending into the temporo-parietal junction. Using this effect as a seed in a functional connectivity analysis identified a network including extended bilateral regions along the temporal lobe, bilateral frontal cortex, and left insula. Compared with children with low maternal touch, children with high maternal touch showed additional connectivity with the right dorso-medial prefrontal cortex. Together these results support the notion that childhood tactile experiences shape the developing "social brain" with a particular emphasis on a network involved in mentalizing.
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Affiliation(s)
- Jens Brauer
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Yaqiong Xiao
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Tanja Poulain
- LIFE Research Center, University of Leipzig, Leipzig, Germany
| | - Angela D Friederici
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Annett Schirmer
- Department of Psychology and LSI Neurobiology/Ageing Programme, National University of Singapore, Singapore, Singapore Duke/NUS Graduate Medical School, Singapore, Singapore
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