To find whether a parrot is able to use vocal labels to demonstrate the symbolic understanding of the concepts ‘same’ and ____ The research was a ____ and involved ____ – an African Grey parrot. He was trained ____ per week. This technique involves a trainer and a ____, the trainer asks a question and praises the model for desirable responses. The main task involved a completely ____ pair or model and trainer and the object selection was put together by a student not involved in the study in order to produce an unbiased set of stimuli. Alex was primarily asked questions about ‘what’s the ____ and ‘what’s different’ between two objects in terms of shape, colour and material. With familiar objects, Alex responded correct to ____ of the trials – 99/129 and for the correction procedures, ____ of instances were answered correctly – 69/99. The training. With unfamiliar objects, Alex performed unexpectedly better, with 79/96 – ____ correct answers on the first trials and 96/113 – 85% on the correction ____

Pepperberg's experiment

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