Motor and sensory disturbances induced by sensorimotor conflicts during passive and active movements in healthy participants

摘要: Sensorimotor conflict induces both sensory and motor disturbances, but the specific factors playing a role in conflict-induced disturbances are still misunderstood. For example, we do not know played by intention (vs. purely visuo-proprioceptive conflict) or influence of types incongruent visual feedback. The objective this study was threefold: 1- to compare effect passive active movement during sensorimotor on measured with questionnaire; 2- three feedback conditions (mediolateral drift amplitude) disturbances; 3- test whether were stable over time. 20 healthy participants realized cyclic upper limb movements while viewing either congruent about their using robotized exoskeleton combined 2D virtual reality interface. First, results showed that condition conflict, reported higher compared (p = 0.034), suggesting efference copy reinforces between vision proprioception. Second, incongruence induced similar (all p>0.45) (medio-lateral drift: all p>0.59 amplitude: p>0.25), could be related more observation another rather than detection Finally, time ICCs 0.76 0.87), demonstrating low variability within participants. Overall, our suggest is involved they might rely independent processes.