An Adapting Auditory-motor Feedback Loop Can Contribute to Generating Vocal Repetition

Jason D. Wittenbach, Kristofer E. Bouchard, Michael S. Brainard, Dezhe Jin

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Consecutive repetition of actions is common in behavioral sequences. Although integration of sensory feedback with internal motor programs is important for sequence generation, if and how feedback contributes to repetitive actions is poorly understood. Here we study how auditory feedback contributes to generating repetitive syllable sequences in songbirds. We propose that auditory signals provide positive feedback to ongoing motor commands, but this influence decays as feedback weakens from response adaptation during syllable repetitions. Computational models show that this mechanism explains repeat distributions observed in Bengalese finch song. We experimentally confirmed two predictions of this mechanism in Bengalese finches: removal of auditory feedback by deafening reduces syllable repetitions; and neural responses to auditory playback of repeated syllable sequences gradually adapt in sensory-motor nucleus HVC. Together, our results implicate a positive auditory-feedback loop with adaptation in generating repetitive vocalizations, and suggest sensory adaptation is important for feedback control of motor sequences.

Original languageEnglish (US)
Article numbere1004471
JournalPLoS computational biology
Volume11
Issue number10
DOIs
StatePublished - Jan 1 2015

Fingerprint

Feedback Loop
Feedback
Positive Feedback
songbird
Finches
vocalization
song
repetitive sequences
songbirds
Sensory feedback
animal communication
Computational Model
deterioration
Feedback Control
Nucleus
Sensory Feedback
Songbirds
Consecutive
prediction
Nucleic Acid Repetitive Sequences

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Modeling and Simulation
  • Ecology
  • Molecular Biology
  • Genetics
  • Cellular and Molecular Neuroscience
  • Computational Theory and Mathematics

Cite this

Wittenbach, Jason D. ; Bouchard, Kristofer E. ; Brainard, Michael S. ; Jin, Dezhe. / An Adapting Auditory-motor Feedback Loop Can Contribute to Generating Vocal Repetition. In: PLoS computational biology. 2015 ; Vol. 11, No. 10.
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An Adapting Auditory-motor Feedback Loop Can Contribute to Generating Vocal Repetition. / Wittenbach, Jason D.; Bouchard, Kristofer E.; Brainard, Michael S.; Jin, Dezhe.

In: PLoS computational biology, Vol. 11, No. 10, e1004471, 01.01.2015.

Research output: Contribution to journalArticle

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