Building upon working theories of subcortical participation in language: Integration of intrinsic basal ganglia circuitry

Brooke-Mai Whelan, Bruce E. Murdoch, Deborah Theodoros, Bruce Hall, Peter A. Silburn

Research output: Contribution to journalArticleResearchpeer-review

Abstract

In relation to contemporary models of motor control, a neurochemically opposed push-pull system, regulated via direct and indirect basal ganglia pathways, has been postulated to facilitate the execution of movement by way of generating specific patterns of motor cortex activation and inhibition. To date, working theories of subcortical participation in language have failed to adopt this schema, largely promoting the direct pathway as the neural substrate underpinning the mediation of linguistic processes. Based on prevailing neuroanatomical, neurophysiological and neurolinguistic evidence, the present study attempts to extrapolate operative subcortical language theory via the integration of the subthalamic nucleus (STN) within response-release semantic feedback, lexical decision and selective engagement frameworks. Hypotheses pertaining to the functional specificity of this nucleus within each model are presented, and directions towards the empirical validation of these postulates offered.
Original languageEnglish
Pages (from-to)174-193
Number of pages20
JournalActa Neuropsychologica
Volume1
Issue number2
Publication statusPublished - 2003
Externally publishedYes

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Basal Ganglia
Language
Neural Pathways
Subthalamic Nucleus
Motor Cortex
Linguistics
Semantics
Inhibition (Psychology)
Direction compound

Cite this

Whelan, B-M., Murdoch, B. E., Theodoros, D., Hall, B., & Silburn, P. A. (2003). Building upon working theories of subcortical participation in language: Integration of intrinsic basal ganglia circuitry. Acta Neuropsychologica, 1(2), 174-193.
Whelan, Brooke-Mai ; Murdoch, Bruce E. ; Theodoros, Deborah ; Hall, Bruce ; Silburn, Peter A. / Building upon working theories of subcortical participation in language : Integration of intrinsic basal ganglia circuitry. In: Acta Neuropsychologica. 2003 ; Vol. 1, No. 2. pp. 174-193.
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Whelan, B-M, Murdoch, BE, Theodoros, D, Hall, B & Silburn, PA 2003, 'Building upon working theories of subcortical participation in language: Integration of intrinsic basal ganglia circuitry' Acta Neuropsychologica, vol. 1, no. 2, pp. 174-193.

Building upon working theories of subcortical participation in language : Integration of intrinsic basal ganglia circuitry. / Whelan, Brooke-Mai; Murdoch, Bruce E.; Theodoros, Deborah; Hall, Bruce; Silburn, Peter A.

In: Acta Neuropsychologica, Vol. 1, No. 2, 2003, p. 174-193.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Building upon working theories of subcortical participation in language

T2 - Integration of intrinsic basal ganglia circuitry

AU - Whelan, Brooke-Mai

AU - Murdoch, Bruce E.

AU - Theodoros, Deborah

AU - Hall, Bruce

AU - Silburn, Peter A.

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AB - In relation to contemporary models of motor control, a neurochemically opposed push-pull system, regulated via direct and indirect basal ganglia pathways, has been postulated to facilitate the execution of movement by way of generating specific patterns of motor cortex activation and inhibition. To date, working theories of subcortical participation in language have failed to adopt this schema, largely promoting the direct pathway as the neural substrate underpinning the mediation of linguistic processes. Based on prevailing neuroanatomical, neurophysiological and neurolinguistic evidence, the present study attempts to extrapolate operative subcortical language theory via the integration of the subthalamic nucleus (STN) within response-release semantic feedback, lexical decision and selective engagement frameworks. Hypotheses pertaining to the functional specificity of this nucleus within each model are presented, and directions towards the empirical validation of these postulates offered.

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