TY  - JOUR
AB  - Recent research has shown that neurophysiological activation during action planning depends on the orientation to initial or final action goals for precision grips. However, the neural signature for a distinct class of grasping, power grips, is still unknown. The aim of the present study was to differentiate between cerebral activity, by means of event-related potentials (ERPs), and its temporal organization during power grips executed with an emphasis on either the initial or final parts of movement sequences. In a grasp and transportation task, visual cues emphasized either the grip (the immediate goal) or the target location (the final goal). ERPs differed between immediate and final goal-cued conditions, suggesting different means of operation dependent on goal-relatedness. Differences in mean amplitude occurred earlier for power grips than for recently reported precision grips time-locked to grasping over parieto-occipital areas. Time-locked to final object placement, differences occurred within a similar time window for power and precision grips over frontal areas. These results suggest that a parieto-frontal network of activation is of crucial importance for grasp planning and execution. Our results indicate that power grip preparation and execution for goal-related actions are controlled by similar neural mechanisms as have been observed during precision grips, but with a distinct temporal pattern.
DA  - 2013
DO  - 10.1371/journal.pone.0068501
LA  - eng
IS  - 7
PY  - 2013
SN  - 1932-6203
T2  - PLoS ONE
TI  - Event-Related Brain Potentials for Goal-Related Power Grips
UR  - https://nbn-resolving.org/urn:nbn:de:0070-pub-26107872
Y2  - 2024-11-22T03:27:08
ER  -