Variation in sequence dynamics improves maintenance of stereotyped behavior in an example from bird song.

ABSTRACT: Performing a stereotyped behavior successfully over time requires both maintaining performance quality and adapting efficiently to environmental or physical changes affecting performance. The bird song system is a paradigmatic example of learning a stereotyped behavior and therefore is a good place to study the interaction of these two goals. Through a model of bird song learning, we show how instability in neural representation of stable behavior confers advantages for adaptation and maintenance with minimal cost to performance quality. A precise, temporally sparse sequence from the premotor nucleus HVC is crucial to the performance of song in songbirds. We find that learning in the presence of sequence variations facilitates rapid relearning after shifts in the target song or muscle stru

SUBMITTER: Duffy A 

PROVIDER: S-EPMC6511032 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature