Does the pre-frontal cortex contribute to movement-related potentials? Recordings from subdural electrodes

Jahanshahi, M., Dirnberger, G., Liasis, A., Towell, A. and Boyd, S. 2001. Does the pre-frontal cortex contribute to movement-related potentials? Recordings from subdural electrodes. Neurocase. 7 (6), pp. 495-501. https://doi.org/10.1093/neucas/7.6.495

TitleDoes the pre-frontal cortex contribute to movement-related potentials? Recordings from subdural electrodes
AuthorsJahanshahi, M., Dirnberger, G., Liasis, A., Towell, A. and Boyd, S.
Abstract

The contribution of the pre-frontal cortex to movement-related potentials (MRPs) subdural electrode strips placed over the frontal cortex in a 13-year-old girl being monitored prior to surgery for intractable epilepsy. MRPs were recorded prior to two types of movement: self-paced random joystick movements which involve 'what to do' and 'when to do' decision making on every trial and prior to joystick movements in a fixed forward direction triggered by a tone which does not involve any trial-by-trial decision making. Self-paced random joystick movements were associated with an increased subdural positivity starting from 1000 ms prior to onset of joystick movement at electrodes over the pre-motor cortex (BA 6) and dorsolateral and inferior pre-frontal cortex (BA 46/45/10), as evident from a magnetic resonance imaging scan. These results suggest that in addition to the pre-motor area, the pre-frontal cortex also contributes to the generation of MRPs in conditions involving decision making about the precise nature ('what to do') and timing ('when to do') of the movement. These preliminary results require replication in a larger series of patients.

JournalNeurocase
Journal citation7 (6), pp. 495-501
ISSN1355-4794
Year2001
Digital Object Identifier (DOI)https://doi.org/10.1093/neucas/7.6.495
Web address (URL)http://www.journalsonline.tandf.co.uk/openurl.asp?genre=article&issn=1355-4794&volume=7&issue=6&spage=495
Publication dates
Published2001

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