Functional coupling between anterior prefrontal cortex (BA10) and hand muscle contraction during intentional and imitative motor acts.
| Authors | |
|---|---|
| Year of publication | 2008 |
| Type | Article in Periodical |
| Magazine / Source | Neuroimage |
| MU Faculty or unit | |
| Citation | |
| Field | Neurology, neurosurgery, neurosciences |
| Keywords | functional coupling; motor acts; BA 10; electromyography |
| Description | The present study tested the hypothesis that functional corticomuscular coupling is a putative physiological mechanism by which Brodmann area 10 (BA10) of anterior prefrontal cortex controls subjects behavior. Intracerebral stereo electroencephalographic (SEEG) data were recorded from BA10 of epilepsy subjects in the course of presurgical monitoring. During the SEEG recordings, these subjects were engaged in three conditions: the execution of intentional hand muscle contractions as triggered by auditory stimuli (EXE); the execution of the same muscle contractions as an imitation of a person seated in front of the subject (IMI); and the mere observation of the hand muscle contractions performed by that person (OBS). SEEG frequency bands of interest were theta, alpha, beta 1, beta 2, and gamma. Results showed that functional corticomuscular coupling at gamma band was higher in amplitude during the intentional muscle contraction (EXE) than the other conditions (IMI and OBS). |
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