Gittinger G M, Prestrude A M
TIT J Life Sci. 1975;5(1-2):1-4.
Thermal sensitivity increases with skin pigmentation. Absolute thresholds for warmth and pricking pain decreased as skin color increased for 13 Caucasian, 3 Mexican, and 4 Negro subjects. These data replicate and extend a previous psychophysical study of pain sensitivity and are compared with spectrophotometric data from excised skin. The results are considered to be potentially significant for the existence of a dermal light sense.
