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Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception
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Auditory-vocal control system is object for predictive processing within seconds time range.

Oleg Korzyukov1, Yunseon Lee2, Alexander Bronder2

  • 1Airway Sensory Physiology Laboratory, Department of Communication Sciences and Disorders, University of Wisconsin - Whitewater, Whitewater, WI 53190, USA; Department of Communication Sciences and Disorders, Northwestern University, 2240 Campus Dr., Evanston, IL 60208, USA.

Brain Research
|February 8, 2020
PubMed
Summary
This summary is machine-generated.

This study shows the brain uses predictive processing for vocalizations, detecting errors and optimizing predictions within seconds. This reveals sequential neuronal processes in auditory-vocal systems.

Keywords:
Auditory feedbackMismatch negativityPrediction error detectionPredictive neural computationsReflexive motor actSensory-motor ERPVocalizations

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Auditory Processing

Background:

  • Predictive processing is a core neural computation principle in the cerebral cortex.
  • Auditory-vocal systems integrate auditory feedback for vocalization control.

Purpose of the Study:

  • To investigate predictive processing in integrated auditory-vocal brain systems.
  • To examine neuronal responses to violated expectations in auditory feedback during vocalizations.

Main Methods:

  • Used repetitive auditory feedback perturbations during vocalizations.
  • Introduced surprising perturbation directions in a specific experimental condition.
  • Analyzed neuronal processes related to expectation formation and error detection.

Main Results:

  • Demonstrated two sequential neuronal processes in auditory-vocal systems.
  • Identified a process for monitoring and error detection of auditory feedback perturbations.
  • Found a second process for optimizing brain predictions at distinct timescales.

Conclusions:

  • Supports the role of predictive processing in auditory-vocal integration.
  • Highlights the temporal dynamics of expectation formation and adaptation in vocal control.
  • Suggests separable timescales for prediction monitoring and optimization.