Adaptation of pointing and visual localization in depth around the natural grasping distance
| Autor: | Eckart Zimmermann, Michael Wiesing, Tatiana Kartashova |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Adult
Male Adolescent Physiology Computer science Plan (drawing) Motor Activity 050105 experimental psychology 03 medical and health sciences Young Adult 0302 clinical medicine 3d vision Feedback Sensory Natural (music) Humans 0501 psychology and cognitive sciences Computer vision Adaptation (computer science) Depth Perception business.industry Movement (music) General Neuroscience 05 social sciences Sensorimotor system Visual localization Middle Aged Adaptation Physiological 3d space Visual Perception Female Artificial intelligence business 030217 neurology & neurosurgery Psychomotor Performance |
| Zdroj: | Journal of neurophysiology. 125(6) |
| ISSN: | 1522-1598 |
| Popis: | Vision in depth is distorted. A similar distortion can be observed for pointing to visual targets in depth. It has been suggested that pointing errors in depth reflect the visual distortion. Alternatively, pointing in depth might be guided by a prior that biases movements toward the natural grasping distance at which object manipulation is usually performed. To dissociate whether pointing is guided by distorted vision only or whether it takes into account a natural grasping distance prior, we adapted pointing movements. Participants received visual feedback about the success of their pointing once the movement was finished. We distorted the feedback to signal either that pointing was not far enough or in separate sessions that pointing was too far. Participants adapted to this artificial error by either extending or shortening their pointing movements. The generalization of pointing adaptation revealed a bias in movement planning that is inconsistent with pointing being guided only by distorted vision but with the involvement of knowledge about the natural grasping distance. Adaptation was strongest for pointing movements to a middle position that corresponds to the natural grasping distance and it was weakest for movements leading away from it. It has been demonstrated that pointing adaptation in depth changes visual perception (Volcic R, Fantoni C, Caudek C, Assad JA, Domini F. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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