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Limited Plasticity of Prismatic Visuomotor Adaptation
| Content Provider | SAGE Publishing |
|---|---|
| Author | Spang, Karoline Wischhusen, Sven Fahle, Manfred |
| Copyright Year | 2017 |
| Abstract | Movements toward an object displaced optically through prisms adapt quickly, a striking example for the plasticity of neuronal visuomotor programs. We investigated the degree and time course of this system’s plasticity. Participants performed goal-directed throwing or pointing movements with terminal feedback before, during, and after wearing prism goggles shifting the visual world laterally either to the right or to the left. Prism adaptation was incomplete even after 240 throwing movements, still deviating significantly laterally by on average of 0.8° (CI = 0.20°) at the end of the adaptation period. The remaining lateral deviation was significant for pointing movements only with left shifting prisms. In both tasks, removal of the prisms led to an aftereffect which disappeared in the course of further training. This incomplete prism adaptation may be caused by movement variability combined with an adaptive neuronal control system exhibiting a finite capacity for evaluating movement errors. |
| Related Links | https://journals.sagepub.com/doi/pdf/10.1177/2041669517701458?download=true |
| ISSN | 20416695 |
| Issue Number | 2 |
| Volume Number | 8 |
| Journal | i-Perception (IPE) |
| e-ISSN | 20416695 |
| DOI | 10.1177/2041669517701458 |
| Language | English |
| Publisher | Sage Publications UK |
| Publisher Date | 2017-04-10 |
| Publisher Place | London |
| Access Restriction | Open |
| Rights Holder | © The Author(s) 2017 |
| Subject Keyword | multisensory or cross-modal processing prism adaptation visuohaptic interactions body perception perceptual learning pointing or hitting |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ophthalmology Experimental and Cognitive Psychology Artificial Intelligence Sensory Systems |
