Dynamic temporal modulation of somatosensory processing during reaching.

ABSTRACT: Sensorimotor control of human action integrates feedforward policies that predict future body states with online sensory feedback. These predictions lead to a suppression of the associated feedback signals. Here, we examine whether somatosensory processing throughout a goal-directed movement is constantly suppressed or dynamically tuned so that online feedback processing is enhanced at critical moments of the movement. Participants reached towards their other hand in the absence of visual input and detected a probing tactile stimulus on their moving or static hand. Somatosensory processing on the moving hand was dynamically tuned over the time course of reaching, being hampered in early and late stages of the movement, but, interestingly, recovering around the time of maximal speed. This n

SUBMITTER: Voudouris D 

PROVIDER: S-EPMC7820441 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature