Horev, G., Saig, A., Knutsen, P. M., Pietr, M., Yu, C. X., Ahissar, E. (November 2011) Motor-sensory convergence in object localization: a comparative study in rats and humans. Philosophical Transactions of the Royal Society B-Biological Sciences, 366 (1581). pp. 3070-3076. ISSN 0962-8436
Abstract
In order to identify basic aspects in the process of tactile perception, we trained rats and humans in similar object localization tasks and compared the strategies used by the two species. We found that rats integrated temporally related sensory inputs ('temporal inputs') from early whisk cycles with spatially related inputs ('spatial inputs') to align their whiskers with the objects; their perceptual reports appeared to be based primarily on this spatial alignment. In a similar manner, human subjects also integrated temporal and spatial inputs, but relied mainly on temporal inputs for object localization. These results suggest that during tactile object localization, an iterative motor-sensory process gradually converges on a stable percept of object location in both species.
| Item Type: | Paper |
|---|---|
| Uncontrolled Keywords: | behaviour dynamics closed feedback loops adaptive process video-tracking sensory substitution decision-making speed-accuracy tradeoff fixational eye-movements somatosensory cortex sensorimotor system head movements precision grip task whisking performance feedback |
| Subjects: | organism description > animal organism description > animal behavior organism description > animal > mammal > primates > hominids > human organism description > animal > mammal organism description > animal > mammal > rodent > rat organism description > animal > mammal > rodent > rat organism description > animal > mammal > rodent |
| CSHL Authors: | |
| Communities: | CSHL labs > Mills lab CSHL Post Doctoral Fellows |
| Depositing User: | Matt Covey |
| Date: | 12 November 2011 |
| Date Deposited: | 06 Feb 2013 22:07 |
| Last Modified: | 02 May 2013 16:02 |
| PMCID: | PMC3172599 |
| Related URLs: | |
| URI: | https://repository.cshl.edu/id/eprint/27137 |
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