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Related Concept Videos

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Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
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Auditory Perception01:17

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The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the...
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Cognitive Learning01:21

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Cognitive learning is based on purposive behavior, incidental learning, and insight learning.
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Non-sensory Influences on Auditory Learning and Plasticity.

Melissa L Caras1, Max F K Happel2,3,4, Bharath Chandrasekaran5

  • 1Department of Biology, University of Maryland at College Park, College Park, MD, 20742, USA. mcaras@umd.edu.

Journal of the Association for Research in Otolaryngology : JARO
|March 2, 2022
PubMed
Summary
This summary is machine-generated.

Non-sensory factors like reward and social context significantly shape auditory learning and brain plasticity. Understanding these influences can improve treatments for communication disorders.

Keywords:
ExperienceLanguageRewardSocial contextTask engagementTop-down

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Area of Science:

  • Neuroscience
  • Auditory Perception
  • Learning and Memory

Background:

  • Auditory learning, essential for tasks like speech perception and music, is influenced by experience.
  • Non-sensory factors such as reward, task engagement, and social context are increasingly recognized as critical drivers of auditory plasticity.

Purpose of the Study:

  • To review how non-sensory factors modulate auditory plasticity and learning at molecular, physiological, and behavioral levels.
  • To highlight the neural mechanisms underlying these modulations.

Main Methods:

  • Review of existing human and animal model studies.
  • Analysis of evidence on dopaminergic reward signals, top-down cortical networks, and social/linguistic influences.

Main Results:

  • Reward signals shape sound-evoked responses and auditory category learning.
  • Task engagement enhances auditory perceptual learning via top-down cortical networks.
  • Social and linguistic contexts rapidly shape auditory processing and speech perception.

Conclusions:

  • Non-sensory influences are crucial regulators of auditory learning and plasticity, often utilizing shared neural substrates.
  • These principles can inform clinical strategies for communication disorders.