Neural coding mechanisms underlying perceived roughness of finely textured surfaces.

  • Yoshioka T
  • Gibb B
  • Dorsch A
 et al. 
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Abstract

Combined psychophysical and neurophysiological studies have shown that the perceived roughness of surfaces with element spacings of >1 mm is based on spatial variation in the firing rates of slowly adapting type 1 (SA1) afferents (mean absolute difference in firing rates between SA1 afferents with receptive fields separated by approximately 2 mm). The question addressed here is whether this mechanism accounts for the perceived roughness of surfaces with element spacings of

Author-supplied keywords

  • 2000
  • and dicarlo and johnson
  • fine
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  • have demonstrated the
  • macaque
  • mechanoreceptor
  • mm
  • ness magnitude
  • pc
  • peripheral nerve
  • psychophysical rough-
  • ra
  • roughness
  • sa1
  • somatosensory
  • tactile
  • texture

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Authors

  • T Yoshioka

  • B Gibb

  • a K Dorsch

  • S S Hsiao

  • K O Johnson

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