- Copyright Page
- Neurolinguistics: A Brief Historical Perspective
- Neurolinguistic Studies of Patients with Acquired Aphasias
- Electrophysiological Methods in the Study of Language Processing
- Studying Language with Functional Magnetic Resonance Imaging (fMRI)
- Transcranial Magnetic Stimulation to Study the Neural Network Account of Language
- Magnetoencephalography and the Cortical Dynamics of Language Processing
- Shedding Light on Language Function and Its Development with Optical Brain Imaging
- What Has Direct Cortical and Subcortical Electrostimulation Taught Us about Neurolinguistics?
- Diffusion Imaging Methods in Language Sciences
- Neuroplasticity: Language and Emotional Development in Children with Perinatal Stroke
- The Neurolinguistics of Bilingualism: Plasticity and Control
- Language and Aging
- Language Plasticity in Epilepsy
- Language Development in Deaf Children: Sign Language and Cochlear Implants
- Neuromotor Organization of Speech Production
- The Neural Organization of Signed Language: Aphasia and Neuroscience Evidence
- Understanding How We Produce Written Words: Lessons from the Brain
- Motor Speech Disorders
- Investigating the Spatial and Temporal Components of Speech Production
- The Dorsal Stream Auditory-Motor Interface for Speech
- Neural Representations of Concept Knowledge
- Finding Concepts in Brain Patterns: From Feature Lists to Similarity Spaces
- The How and What of Object Knowledge in the Human Brain
- Neural Basis of Monolingual and Bilingual Reading
- Dyslexia and Its Neurobiological Basis
- Speech Perception: A Perspective from Lateralization, Motorization, and Oscillation
- Sentence Processing: Toward a Neurobiological Approach
- Comprehension of Metaphors and Idioms: An Updated Meta-analysis of Functional Magnetic Resonance Imaging Studies
- Language Comprehension and Emotion: Where Are the Interfaces, and Who Cares?
- Grammatical Categories
- Neurocognitive Mechanisms of Agrammatism
- Verbal Working Memory
- Subcortical Contributions to Language
- Lateralization of Language
- Neural Mechanisms of Music and Language
Abstract and Keywords
While it is well established that language processing is dependent on cortical mechanisms, the role of the subcortex in language function has been a point of contention since the initial clinical-anatomical observations of language deficits following vascular subcortical lesions. This chapter reviews both traditional proposals and recent discoveries of the functional and structural connectivity of the basal ganglia and thalamus with the cortex, suggesting that these subcortical structures are well positioned to contribute to language processing. It then examines both patient and healthy neuroimaging data implicating the thalamus and basal ganglia in various aspects of language, including lexical-semantics, verb/action processing, grammar, and sentence comprehension. While there is still considerable conjecture regarding the role of the basal ganglia in a number of these operations, there is now considerable evidence that the thalamus influences lexical-semantic processing through attentional engagement, while striatal-thalamic-cortical circuits most likely influence lexical-semantic functions, bilingual language processing, and sentence comprehension through domain-general mechanisms, including controlled selection and suppression.
David A. Copland is a University of Queensland Vice Chancellors Fellow and speech pathologist. He is active in the fields of psycholinguistics, language neuroscience, and clinical aphasia management. He has particular interests in determining the neural mechanisms underpinning aphasia recovery and treatment, in developing better interventions for aphasia, and understanding subcortical contributions in language as observed in stroke and in Parkinson’s disease.
Anthony J. Angwin is a Senior Lecturer in Speech Pathology at the University of Queensland. His research, focused primarily within the field of Language Neuroscience, uses neuroimaging and behavioral paradigms to advance current understanding of language processing and language learning in healthy adults and people with neurological impairment.
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