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Somatosens Mot Res. 1991;8(3):241-8.

Tactile discrimination of gratings: psychophysical and neural correlates in human and monkey.

Author information

1
Department of Anatomy and Neurobiology, Washington University School of Medicine, St. Louis, Missouri 63110.

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.

PMID:
1767620
DOI:
10.3109/08990229109144747
[Indexed for MEDLINE]

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