• Brian Foutch deposited Gender Differences in Contrast Thresholds to Biased Stimuli on Humanities Commons 2 years, 8 months ago

    We present a limited review of the literature on gender differences in visual processing. We then add evidence to that body of literature, reporting the results of an examination of gender differences in response to stimulus conditions favoring magnocellular (MC) and parvocellualr (PC) processing. We measured contrast thresholds and mean reaction times of 24 subjects (15 women, 9 men) to two grating stimuli, one designed to be processed more strongly by MC pathways and the other by PC pathways. There was a significant interaction of gender and stimulus type on contrast thresholds (F = 4.80, p = 0.03) and reaction times (F = 4.13, p = 0.04). Women were more sensitive than men to the PC-biased stimulus (t = 1.94, p = 0.05), but men and women were equally sensitive to the MC-biased stimulus (t = -1.22, p = 0.23). The results of this experiment add to the body of evidence that women may rely more on parvocellular visual processes than men.