Effect of adaptation level on maintained firing and sensitivity in receptive field center of X and Y cells

J. G. Pollack, R. W. Winters

Research output: Contribution to journalArticle

3 Scopus citations


Maintained firing rates of X cells and Y cells were compared at 6 adaptation levels (AL) between -2.71 log cd/m2 and 2.28 log cd/m2 (10 mm2 pupil size). X cell maintained firing was higher at all ALs and was statistically different at medium and high ones. Changes in AL had nearly identical effects upon X and Y cell suprathreshold sensitivity to a flashing spot in the center of their receptive fields; the Weber function had a slope of 0.744 for Y cells and 0.743 for X cells. These values are not statistically different.

Original languageEnglish (US)
Pages (from-to)80-81
Number of pages2
Issue number1
StatePublished - Jan 1 1978


ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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