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  Evidence for a causal inverse model in an avian cortico-basal ganglia circuit

Giret, N., Kornfeld, J., Ganguli, S., & Hahnloser, R. H. R. (2014). Evidence for a causal inverse model in an avian cortico-basal ganglia circuit. Proceedings of the National Academy of Sciences of the United States of America, 111(16), 6063-6068. doi:10.1073/pnas.1317087111.

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 Creators:
Giret, Nicolas, Author
Kornfeld, Jörgen1, Author           
Ganguli, Surya, Author
Hahnloser, Richard H. R., Author
Affiliations:
1ETH,Zürich, Switzerland, ou_persistent22              

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Free keywords: lateral magnocellular nucleus of the anterior nidopallium Hebbian learning mirror neuron vocal control-system social-context zebra finch dependent plasticity corollary discharge neural mechanisms song variability mirror neurons forebrain birdsong Science & Technology - Other Topics
 Abstract: Learning by imitation is fundamental to both communication and social behavior and requires the conversion of complex, nonlinear sensory codes for perception into similarly complex motor codes for generating action. To understand the neural substrates underlying this conversion, we study sensorimotor transformations in songbird cortical output neurons of a basal-ganglia pathway involved in song learning. Despite the complexity of sensory and motor codes, we find a simple, temporally specific, causal correspondence between them. Sensory neural responses to song playback mirror motor-related activity recorded during singing, with a temporal offset of roughly 40 ms, in agreement with short feedback loop delays estimated using electrical and auditory stimulation. Such matching of mirroring offsets and loop delays is consistent with a recent Hebbian theory of motor learning and suggests that cortico-basal ganglia pathways could support motor control via causal inverse models that can invert the rich correspondence between motor exploration and sensory feedback.

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Language(s): eng - English
 Dates: 2014-04-22
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: Other: WOS:000334694000074
DOI: 10.1073/pnas.1317087111
ISSN: 0027-8424
 Degree: -

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Title: Proceedings of the National Academy of Sciences of the United States of America
  Other : PNAS
  Other : Proceedings of the National Academy of Sciences of the USA
  Abbreviation : Proc. Natl. Acad. Sci. U. S. A.
Source Genre: Journal
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Affiliations:
Publ. Info: Washington, D.C. : National Academy of Sciences
Pages: - Volume / Issue: 111 (16) Sequence Number: - Start / End Page: 6063 - 6068 Identifier: ISSN: 0027-8424
CoNE: https://pure.mpg.de/cone/journals/resource/954925427230