Visual acuity and its relation to brightness in chimpanzee and man.
- 1 December 1934
- journal article
- research article
- Published by American Psychological Association (APA) in Journal of Comparative Psychology
- Vol. 18 (3) , 333-361
- https://doi.org/10.1037/h0075291
Abstract
Two chimpanzees and a child were trained to choose a food box associated with a circular stimulus field containing black and white lines in preference to a food box associated with a clear circular field of the same brightness, while two human adult subjects indicated the positive stimulus verbally. Visual acuity, as determined by the smallest width of lines that could be discriminated correctly 75% of the time, was found to be of about the same order in the chimpanzee and man within the range of brightness values employed. A comparison of the visual acuity of the chimpanzee with that reported by other investigators for other animals indicates that the chim- panzee''s vision is definitely superior to all except possibly that of the monkey (Cebus).This publication has 7 references indexed in Scilit:
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