Enhanced Distress Vocalization through Selective Reinforcement

Science  21 Jan 1966:
Vol. 151, Issue 3708, pp. 352-354
DOI: 10.1126/science.151.3708.352


Eighteen Peking ducklings were imprinted and tested for their tendency to emit distress calls during the presentation and withdrawal of the imprinted stimulus. A subsequent arrangement in which each distress vocalization led to a 5-second presentation of the imprinted stimulus resulted in an enhanced tendency to emit distress calls.