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Publication Detail
How the brain discovers structure in sound sequences
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Review
  • Authors:
    Chait M
  • Publication date:
    01/01/2020
  • Pagination:
    48, 53
  • Journal:
    Acoustical Science and Technology
  • Volume:
    41
  • Issue:
    1
  • Status:
    Published
  • Print ISSN:
    1346-3969
Abstract
© 2020 The Acoustical Society of Japan Sensitivity to patterns is fundamental to sensory processing, in particular in the auditory system, and a major component of the influential 'predictive coding' theory of brain function. Supported by growing experimental evidence, the 'predictive coding' framework suggests that perception is driven by a mechanism of inference, based on an internal model of the signal source. However, a key element of this theory - the process through which the brain acquires this model, and its neural underpinnings - remains poorly understood. Here I review recent brain imaging and behavioural work which focuses on this missing link. Together these emerging results paint a picture of the brain as a regularity seeker, rapidly extracting and maintaining representations of acoustic structure on multiple time scales and even when these are not relevant to behaviour.
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