title: Human supplementary motor area contribution to predictive motor planning.
abstract: The supplementary motor area (SMA) is involved in planning limb movements. An important component of such planning is the prediction of the sensory consequences of action. The authors used transcranial magnetic stimulation (TMS) to probe the contribution of SMA to motor planning during a predictive load-bearing task. Single TMS pulses were delivered over the SMA after a cue instructing the participant to release a platform supporting his or her right hand, which in turn held a 2 kg mass. Participants were less able to bear the load successfully when TMS was delivered 400-500 ms prior to the response. This result suggests that the SMA contributes to the prediction of the sensory consequences of movement well before movement onset.
authors: College of Medicine, King Khalid University Hospital, Kind Saud University, Riyadh, Kingdom of Saudi Arabia.
authors: Ziyad
authors: Z
authors: Makoshi
authors: Gregory
authors: G
authors: Kroliczak
authors: Paul
authors: P
authors: van Donkelaar
mesh_terms: D000328:Adult; D003463:Cues; D005260:Female; D006225:Hand / Q000502:physiology; D006801:Humans; D008297:Male; D009044:Motor Cortex / Q000502:physiology*; D010775:Photic Stimulation / Q000379:methods; D011597:Psychomotor Performance / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology; D050781:Transcranial Magnetic Stimulation / Q000379:methods*; D016474:Weight-Bearing