To provide a biological framework to be later applied in robotics, we have devised a delayed comparison task in which subjects discriminate between pairs of vibration delivered either to their whiskers, in rats, or fingertips, in human, with a delay inserted between the two stimuli. The task is to compare two successive stimuli, with different position standard deviations defined by σ 1 and σ 2. By varying the stimulus duration we have observed that rats' performance improves for longer stimuli, suggesting that for stimuli with a probabilistic structure, evidence can be accumulated over time. On the other hand a change in stimulus duration biased human subjects. This experiment constrains models for the integration of tactile information in robotics. © 2012 Springer-Verlag.
CITATION STYLE
Fassihi, A., Esmaeili, V., Akrami, A., Manzino, F., & Diamond, M. E. (2012). Sensation of a “noisy” whisker vibration in rats. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 7375 LNAI, pp. 341–342). https://doi.org/10.1007/978-3-642-31525-1_33
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