Following-Response Initiation in Ducklings: Age and Sensory Stimulation

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Science  26 Apr 1963:
Vol. 140, Issue 3565, pp. 399-400
DOI: 10.1126/science.140.3565.399


On the basis of visual stimulation alone, younger ducklings are much less apt than older ducklings to follow a moving model. When the model emits both visual and auditory stimulation, the following-response of the ducklings is greatly enhanced at all ages.