Rapid Online Correction Is Selectively Suppressed During Movement With a Visuomotor Transformation

摘要: Reaching movements to visual targets are under fast feedback control, which can rapidly correct an ongoing movement for errors. This study investigates how this online correction is affected by the application of a new visuomotor transformation. Thirty-two subjects made planar pointing targets. Vision arm was prevented, and hand position represented cursor displayed in plane. In some trials, target abruptly changed location at onset movement, required rapid direction. After performing baseline were adapt mirror-image transformation that inverted their across body midline, whereas others not familiarized with Afterward, subjects' tested jumps presence mirror Results show after short-term motor adaptation there selective suppression non-mirror direction displacement but no reversal. The occurred within first few trials introduction transformation, it strongest caused largest dissociation between movement. Finally, whether or short-latency suppressed given trial, same latency as time voluntary who had experienced