Constraints on vocal production learning in budgerigars (Melopsittacus undulates)
نویسندگان
چکیده
منابع مشابه
Mechanisms of vocal production in budgerigars (Melopsittacus undulatus).
Songbirds vocalizing in helium show a change in the spectral quality of their vocalizations. This effect is due to an increase in the speed of sound in helium that in turn alters the resonance properties of the vocal tract. Here, this approach is extended to a psittacine, the budgerigar (Melopsittacus undulatus), whose syringeal anatomy and innervation differ from that of a songbird. Contact ca...
متن کاملVocal learning in Budgerigars (Melopsittacus undulatus): effects of an acoustic reference on vocal matching.
Budgerigars were trained to produce specific vocalizations (calls) using operant conditioning and food reinforcement. The bird's call was compared to a digital representation of the call stored in a computer to determine a match. Once birds were responding at a high level of precision, we measured the effect of several manipulations upon the accuracy and the intensity of call production. Also, ...
متن کاملThe effect of altered auditory feedback on control of vocal production in budgerigars (Melopsittacus undulatus).
Budgerigars learn their vocalizations by reference to auditory information and they retain the ability to learn new vocalizations throughout life. Auditory feedback of these vocalizations was manipulated in three experiments by training birds to produce vocalizations while wearing small earphones. Experiments 1 and 2 examined the effect of background noise level (Lombard effect) and the effect ...
متن کاملThe discrimination of natural movement by budgerigars (Melopsittacus undulates) and pigeons (Columba livia).
Three experiments examined the ability of birds to discriminate between the actions of walking forwards and backwards as demonstrated by video clips of a human walking a dog. Experiment 1 revealed that budgerigars (Melopsittacus undulates) could discriminate between these actions when the demonstrators moved consistently from left to right. Test trials then revealed that the discrimination tran...
متن کاملBrightness Discrimination in Budgerigars (Melopsittacus undulatus)
Birds have excellent spatial acuity and colour vision compared to other vertebrates while spatial contrast sensitivity is relatively poor for unknown reasons. Contrast sensitivity describes the detection of gratings of varying spatial frequency. It is unclear whether bird brightness discrimination between large uniform fields is poor as well. Here we show that budgerigars (Melopsittacus undulat...
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ژورنال
عنوان ژورنال: Learning & Behavior
سال: 2021
ISSN: 1543-4494,1543-4508
DOI: 10.3758/s13420-021-00465-6