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  • Title: Duration of early visual experience and visual cliff behavior of chicks.
    Author: Kaufman LW.
    Journal: Dev Psychobiol; 1976 Jan; 9(1):1-4. PubMed ID: 1254101.
    Abstract:
    Visual cliff behavior was studied in 120 chicks as a function of 22, 46, 70, 94, or 118 hr of rearing in a deep or shallow environment. Preference for the deep side of the visual cliff increased directly with duration of depth-rearing but was uninfluenced at any duration of shallow-rearing. Although qualitative differences existed in the behaviors of those shallow- and deep-reared chicks which crossed the cliff, the loss of depth avoidance by the latter group appeared to be specific to the rearing and testing apparatus.
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