Lesions of an avian basal ganglia circuit prevent context-dependent changes to song variability.

@article{Kao2006LesionsOA,
  title={Lesions of an avian basal ganglia circuit prevent context-dependent changes to song variability.},
  author={Mimi Kao and Michael S. Brainard},
  journal={Journal of neurophysiology},
  year={2006},
  volume={96 3},
  pages={1441-55}
}
Trial-by-trial variability is important in feedback-based motor learning. Variation in motor output enables evaluation mechanisms to differentially reinforce patterns of motor activity that produce desired behaviors. Here, we studied neural substrates of variability in the performance of adult birdsong, a complex, learned motor skill used for courtship. Song performance is more variable when male birds sing alone (undirected) than when they sing to females (directed). We test the role of the… CONTINUE READING
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