Tactile Discrimination of Gratings: Psychophysical and Neural Correlates in Human and Monkey

1 January 1991

journal article
research article
Published by Taylor & Francis in Somatosensory & Motor Research

Vol. 8 (3) , 241-248
https://doi.org/10.3109/08990229109144747

Abstract

Human and monkey performance on discriminating tactile gratings revealed comparable cross-species Weber functions. Neural data obtained while monkeys performed discriminations revealed some matching of neural and psychometric functions. Nearly constant firing rate differences occurred at discrimination threshold for unequal groove widths. Firing rate differences of some cells decreased on trials preceding discrimination errors, and thus predicted performance.

Keywords

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