Weighted integration of short term memory and sensory signals in the oculomotor system.
(2018) Journal of Vision — Vol. 18(5), n° 16, p. 1-19 (2018)
Files
No attached file found for this publication.
Details
- Authors
- Abstract
- Oculomotor behaviors integrate sensory and prior information to overcome sensory-motor delays and noise. After much debate about this process, reliability-based integration has recently been proposed and several models of smooth pursuit now include recurrent Bayesian integration or Kalman filtering. However, there is a lack of behavioral evidence in humans supporting these theoretical predictions. Here, we independently manipulated the reliability of visual and prior information in a smooth pursuit task. Our results show that both smooth pursuit eye velocity and catch-up saccade amplitude were modulated by visual and prior information reliability. We interpret these findings as the continuous reliability-based integration of a short-term memory of target motion with visual information, which support modeling work. Furthermore, we suggest that saccadic and pursuit systems share this short-term memory. We propose that this short-term memory of target motion is quickly built and continuously updated, and constitutes a general building block present in all sensorimotor systems.
- Affiliations
Citations
Deravet, N., Blohm, G., Orban de Xivry, J.-J., & Lefèvre, P. (2018). Weighted integration of short term memory and sensory signals in the oculomotor system. Journal of Vision, 18(5)(16), 1-19. https://doi.org/10.1167/18.5.16 (Original work published 2018)