Non-sensory Influences on Auditory Learning and Plasticity.

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.