Detection of Non-adjacent Dependency in Bengalese Finches in an Operant Task

[Speaker] Mizuhara, Tomoko:1
[Co-author] Okanoya, Kazuo:1
1:The University of Tokyo (Japan)

Vocal learning is one of the important components of spoken language. Since songbirds also exhibit this trait, they have been used as model animals in which to study the process of vocal learning. However, birdsong lacks meaning and it is still open to examine what extent they can abstract rules from sound sequences and associate them with behavioral consequences. Here, using a Go-Nogo paradigm, we assessed whether Bengalese finches, a species of songbird, could detect non-adjacent dependency, which is a correspondence within a sound sequence. Two classes of sound sequences composed of pure tones were used: in one class, the first sound and the last sound are same; in the other, they are different. Each class was associated with reward or punishment and we trained the subjects to discriminate them. They show a limited ability to acquire this discrimination. Further results will be presented on site. (Supported by Kakenhi #26240019)
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