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AJ. Reach adaptation: what determines whether we learn an internal model of the tool or adapt the model of our arm
| Content Provider | CiteSeerX |
|---|---|
| Author | Kluzik, Joann Diedrichsen, Jörn Shadmehr, Reza Bastian, Amy J. |
| Abstract | what determines whether we learn an internal model of the tool or adapt the model of our arm? J Neurophysiol 100: 1455–1464, 2008. First published July 2, 2008; doi:10.1152/jn.90334.2008. We make errors when learning to use a new tool. However, the cause of error may be ambiguous: is it because we misestimated properties of the tool or of our own arm? We considered a well-studied adaptation task in which people made goal-directed reaching movements while holding the handle of a robotic arm. The robot produced viscous forces that perturbed reach trajectories. As reaching improved with practice, did people recalibrate an internal model of their arm, or did they build an internal model of the novel tool (robot), or both? What factors influenced how the brain solved this credit assignment problem? To investigate these questions, we compared transfer of adaptation between three conditions: catch trials in which robot forces were turned off unannounced, robot-null trials in which subjects were told that |
| File Format | |
| Journal | J Neurophysiol |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Internal Model Reach Adaptation Robotic Arm Reach Trajectory Robot Force Credit Assignment Problem Goal-directed Reaching Movement New Tool Well-studied Adaptation Task Robot-null Trial Viscous Force Novel Tool Catch Trial |
| Content Type | Text |
| Resource Type | Article |
