The adaptability of self-action perception and movement control when the limb is passively versus actively moved.
Research suggests that perceptual experience of our movements adapts together with movement control when we are the agents of our actions. Is this agency critical for perceptual and motor adaptation? We had participants view cursor feedback during elbow extension-flexion movements when they (1) actively moved their arm, or (2) had their arm passively moved. We probed adaptation of movement perception by having participants report the reversal point of their unseen movement. We probed adaptation of movement control by having them aim to a target. Perception and control of active movement were influenced by both types of exposure, although adaptation was stronger following active exposure. Furthermore, both types of exposure led to a change in the perception of passive movements. Our findings support the notion that perception and control adapt together, and they suggest that some adaptation is due to recalibrated proprioception that arises independently of active engagement with the environment.
School of Human Kinetics, University of British Columbia, 6081 University Blvd., Vancouver, BC, Canada V6T 1Z1.
Brendan D
BD
Cameron
Ian M
IM
Franks
J Timothy
JT
Inglis
Romeo
R
Chua
D000328:Adult; D001132:Arm / Q000502:physiology; D004576:Electromyography; D056228:Feedback, Sensory; D005260:Female; D006801:Humans; D007389:Internal-External Control; D007699:Kinesthesis; D008297:Male; D008960:Models, Psychological; D012649:Self Concept; D014796:Visual Perception / Q000502:physiology; D014836:Volition / Q000502:physiology*