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It’s all about context: How the auditory system helps us notice change

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If you have a question about this talk, please contact David Parker.

The brain response to sensory stimuli decreases when those stimuli are repeated. This repetition suppression, or adaptation, is one of the most robust and ubiquitous features of neural sensory processing, and seems to be particularly prevalent in auditory processing. This talk investigates the mechanisms and functional significance of adaptation in human auditory cortical processing. I will present evidence from electro-encephalography (EEG) suggesting that adaptation enables the brain to extract statistical regularities in auditory input, which are used to fade out the acoustic “background” and enhance sensitivity to novel or unexpected events.

This talk is part of the Adrian Seminars in Neuroscience series.

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