Perception of Species-specific Vocalizations by Isolate-reared Buegerigars (Melopsittacus undulatus)

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" Perception of Species-specific Vocalizations by Isolate-reared Buegerigars (Melopsittacus undulatus) "
Dooling, Robert J; Park, Thomas J; Brown, Susan D; Okanoya, Kazuo

Document Type	:	AL
Record Number	:	935287
Doc. No	:	LA0px3f47r
Language of Document	:	English
Main Entry	:	Dooling, Robert J; Park, Thomas J; Brown, Susan D; Okanoya, Kazuo
Title & Author	:	Perception of Species-specific Vocalizations by Isolate-reared Buegerigars (Melopsittacus undulatus) [Article]\ Dooling, Robert J; Park, Thomas J; Brown, Susan D; Okanoya, Kazuo
Title of Periodical	:	International Journal of Comparative Psychology
Volume/ Issue Number	:	4/1
Date	:	1990
Abstract	:	Budgerigars were trained with operant conditioning procedures to discriminate among sets of calls from several species in a Same-Different task. Response latencies from this task were analyzed in several ways including multidimensional scaling (MDS) and cluster analysis. The pattern of response latencies from budgerigars reared in a large group of conspecifics was compared to that of budgerigars reared in acoustic and social isolation. Results show that budgerigars with previous experience with species-specific vocalizations and isolate-reared birds who had never heard such sounds can both discriminate among the categories of species-specific vocal signals. But, results from MDS and cluster analysis also show that rearing budgerigars in isolation has subtle effects on the perception of these categories of vocal signals.