VOCAL LEARNING IN GREY PARROTS (PSITTACUS ERITHACUS): EFFECTS OF SOCIAL INTERACTION, REFERENCE, AND CONTEXT

@article{Pepperberg1994VOCALLI,
  title={VOCAL LEARNING IN GREY PARROTS (PSITTACUS ERITHACUS): EFFECTS OF SOCIAL INTERACTION, REFERENCE, AND CONTEXT},
  author={Irene M. Pepperberg},
  journal={The Auk},
  year={1994},
  volume={111},
  pages={300-313}
}
in the code, and the interactive aspect provides explicit training that is constantly adjusted to the level of the learner. To obtain information on the relative importance of these three aspects of input on learning in a mimetic species, I used three different conditions to train two juvenile Grey Parrots (Psittacus erithacus) to produce English labels to identify various common objects. Each bird experienced: (1) audiotaped tutoring, which was nonreferential, noninteractive, and did not… 

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  • P. Adret
  • Biology, Psychology
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  • 2004
It is concluded that physical contact in the absence of visual cues is sufficient for song imitation to occur and demonstrates an instance of social stimulation by non-singing females in the song acquisition of male songbirds.
...

References

SHOWING 1-10 OF 78 REFERENCES

A Review of the Effects of Social Interaction On Vocal Learning in African Grey Parrots (Psittacus Erithacus)

My studies on African Grey parrots demonstrate that social interaction is important for vocal learning even in a mimetic species and preliminary data show that in the early stages of learningGrey parrots will not acquire an allospecific code from exposure to video or audio input but will readily learn from human tutors.

Social Learning of Vocal Patterns and Modes of their Application in Grey Parrots (Psittacus erithacus)1,2,3

We have developed a method which allowed us to teach Grey Parrots special vocal patterns with a good success. The birds uttered these in antiphonal duets (Fig. 1, Table 1). The duets were performed

Numerical competence in an African gray parrot (Psittacus erithacus).

An African gray parrot (Psittacus erithacus), Alex, trained to label vocally collections of 1-6 simultaneously presented homogeneous objects, correctly identified, without further training,

Proficient performance of a conjunctive, recursive task by an African gray parrot (Psittacus erithacus).

The comprehension skills of an African gray parrot, Alex, were tested on a taks that included a conjunctive condition and indicated that he understood all the elements in the question, including the conj unctive condition, and that he used these elements to guide his search for the one object in the collection that provided the requested information.

Acquisition of the same/different concept by an African Grey parrot (Psittacus erithacus): Learning with respect to categories of color, shape, and material

An African Grey parrot, previously taught to use vocal English labels to discriminate more than 80 different objects and to respond to questions concerning categorical concepts of color and shape,

Referential mapping: A technique for attaching functional significance to the innovative utterances of an African Grey parrot (Psittacus erithacus)

ABSTRACT A set of procedures called referential mapping has been used to assign meaning to spontaneous vocalizations of an African Grey parrot. These spontaneous vocalizations were combinations and

Cognition in the African Grey parrot: Preliminary evidence for auditory/vocal comprehension of the class concept

An African Grey parrot, previously taught to discriminate more than 40 objects by means of vocal labels, has now acquired a limited understanding of abstract class concepts. The subject, Alex, can

What Studies on Learning can Teach us about Playback Design

This chapter discusses how birds are affected by the singing behaviour of other individuals: interactions that demonstrate how communication might occur, provide feedback on whether information has been transferred, or encourage the development of different forms of communication in different contexts.
...