Parietal conditioning enhances motor surround inhibition.

ABSTRACT:

Background

Motor surround inhibition (mSI) is a phenomenon supportive for executing selective finger movements, wherein synergist muscles are selectively facilitated while surround muscles are inhibited. Previous studies of conditioning inputs to several intracortical and cortico-cortical inhibitory networks did not show an influence on mSI. The inhibitory posterior parietal-motor network, which is crucial for executing fine movements, however, has not been studied.

Objective/hypothesis

To investigate the role of inhibitory posterior parietal-motor network in mSI. We hypothesized that conditioning this inhibitory network would enhance mSI.

Methods

11 healthy adults completed study. mSI was elicited by applying a TMS pulse over the motor cortex coupled with or without

SUBMITTER: Thirugnanasambandam N 

PROVIDER: S-EPMC8214400 | biostudies-literature | 2020 Mar - Apr

REPOSITORIES: biostudies-literature