A disjunctive analysis of neonatal approach stimulus prepotence |
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Authors: | Stephen E Sigman Allan H Schulman |
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Institution: | Department of Psychology, Virginia Polytechnic Institute and State University, Blacksburg, Va., U.S.A. |
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Abstract: | Preliminary results of a disjunctive procedure developed to ascertain the relative attractiveness for domestic chicks of auditory and visual stimuli are promising. A detailed account of the procedure and initial results is presented. Seventy-two Canadian Athens random bred chicks were tested at 24 or 36 h posthatch. A repetitive tone (4 per sec, 50 msec duration, 500 Hz) served as the auditory stimulus, and a flickering light (3.5 flashes per sec, 0.8 foot candle) served as the visual stimulus. An age-dependent change in the attractiveness of auditory and visual stimuli obtained with the disjunctive procedure. No change in stimulus preference obtained when the stimuli were presented individually. |
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