Publications [#268417] of Dale Purves

Papers Published

1. Coppola, DM; White, LE; Fitzpatrick, D; Purves, D (1998). Unequal representation of cardinal and oblique contours in ferret visual cortex.. Proceedings of the National Academy of Sciences of the United States of America, 95(5), 2621-2623. [9482936], [doi]
   (last updated on 2023/06/01)

   Abstract:
   We have measured the amount of cortical space activated by differently oriented gratings in 25 adult ferrets by optical imaging of intrinsic signal. On average, 7% more area of the exposed visual cortex was preferentially activated by vertical and horizontal contours than by contours at oblique angles. This anisotropy may reflect the real-world prevalence of contours in the cardinal axes and could explain the greater sensitivity of many animals to vertical and horizontal stimuli.