Tactile discrimination of gratings: Psychophysical and neural correlates in human and monkey

Robert J. Sinclair, Harold Burton

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

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.

Original languageEnglish
Pages (from-to)241-248
Number of pages8
JournalSomatosensory & Motor Research
Volume8
Issue number3
DOIs
StatePublished - 1991

Keywords

  • Active touch
  • Neurometric
  • Psychophysics
  • Somatosensory cortex

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