Visual Feedback Control of Hand Movements
By J. Saunders, David C. Knill. Journal of Neuroscience, 2004
319 citations recorded by the source corpus.
We investigated what visual information contributes to on-line control of hand movements. It has been suggested that motion information predominates early in movements but that position information predominates for endpoint control. We used a perturbation method to determine the relative contributions of motion and position information to feedback control. Subjects reached to touch targets in a dynamic virtual environment in which subjects viewed a moving virtual fingertip in place of their own finger. On some trials, we perturbed the virtual fingertip while it moved behind an occluder. Subjects responded to perturbations that selectively altered either motion or position information, indicating that both contribute to feedback control. Responses to perturbations that changed both motion and position information were consistent with superimposed motion-based and position-based control. Results were well fit by a control model that optimally integrates noisy, delayed sensory feedback about both motion and position to estimate hand state.
Subfields: Cognitive Neuroscience
View Paper: https://www.semanticscholar.org/paper/538f85cd9b79c6ea6a1ecede4a468df30e63a852
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Citations in the corpus
- Error correction, sensory prediction, and adaptation in motor control. (2010, background): “…responses to perturbations are often much larger in amplitude than their short-latency counterparts (Strick, 1978), and response to visual and proprioceptive error are salient throughout the entire course of even relatively quick arm movements (Saunders and Knill, 2003;Saunders and Knill, 2004).”
- Eye–hand coordination in a sequential target contact task (2009, background): “hand to the target (Paillard 1996; Land et al. 1999; Carlton 1981; Berkinblit et al. 1995; Saunders and Knill 2004; Sarlegna et al. 2004).”
- Coding and use of tactile signals from the fingertips in object manipulation tasks (2009, background): “and on visual feedback of hand movements referenced to the foveated targe”