Hemispheric asymmetries of motor versus nonmotor processes during (visuo)motor control.

ABSTRACT: Language and certain aspects of motor control are typically served by the left hemisphere, whereas visuospatial and attentional control are lateralized to the right. Here a (visuo)motor tracing task was used to identify hemispheric lateralization beyond the general, contralateral organization of the motor system. Functional magnetic resonance imaging (fMRI) was applied in 40 male right-handers (19-30 yrs) during line tracing with dominant and nondominant hand, with and without visual guidance. Results revealed a network of areas activating more in the right than left hemisphere, irrespective of the effector. Inferior portions of frontal gyrus and parietal lobe overlapped largely with a previously described ventral attention network responding to unexpected or behaviourally relevant stimuli

SUBMITTER: Callaert DV 

PROVIDER: S-EPMC6870081 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature