Citation

Hsiao SS, Johnson KO, Twombly IA. Acta Psychol. 1993; 84(1): 53-67.

Affiliation

Dept. of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205.

Copyright

(Copyright © 1993, Elsevier Publishing)

DOI

unavailable

PMID

8237456

Abstract

Roughness perception is coded in the somatosensory system by neurons in the type I slowly adapting (SAI) system. When the fingers scan a surface, an isomorphic representation of the surface is encoded in the discharge patterns of SAI afferents. Central neurons in area 3b of primary somatosensory (SI) cortex spatially filter the peripheral image to compute local spatial variation. The outputs from these neurons converge onto neurons in area 1 and onto neurons in secondary somatosensory (SII) cortex which we believe is the critical processing pathway underlying roughness perception.

Language: en