Stimulus contingency and the malleability of species-typical auditory preferences in Northern bobwhite (Colinus virginianus) hatchlings.
نویسندگان
چکیده
Precocial avian hatchlings are typically highly social and show strong species-typical preferences for the maternal calls of their own species. The influence of social contingencies on the acquisition of species-specific preferences has, however, largely been neglected. We found that exposing bobwhite (BW) quail chicks to a Japanese quail (JQ) call contingent on their own vocalizations for 5 min was sufficient to eliminate their species-typical preference for the BW maternal call. Yoked, noncontingent exposure had no such effect. The introduction of variability to the contingency, but not a lengthening of the training session, was found to engender even higher preferences for the JQ call. Chicks provided with contingent exposure to the JQ call on a variable ratio schedule showed a significant preference for the JQ over the BW maternal call, whereas chicks provided with equivalent fixed ratio exposure did not. These results highlight the role that social interaction and contingency can play in the acquisition and maintenance of species-specific auditory preferences in precocial avian species.
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ورودعنوان ژورنال:
- Developmental psychobiology
دوره 50 5 شماره
صفحات -
تاریخ انتشار 2008