Neural basis of auditory expectation within temporal cortex
| Autor: | J.M. Nazimek, Peter W.R. Woodruff, Mike D. Hunter, Iain D. Wilkinson, Robert Hoskin |
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| Rok vydání: | 2013 |
| Předmět: |
Auditory perception
Adult Male genetic structures Cognitive Neuroscience media_common.quotation_subject Experimental and Cognitive Psychology Sensory system Auditory cortex Functional Laterality Behavioral Neuroscience Perception Image Processing Computer-Assisted Reaction Time Humans media_common Temporal cortex Auditory Cortex Neurons Communication Brain Mapping Artificial neural network business.industry Association Learning Magnetic Resonance Imaging Temporal Lobe Associative learning Unexpected events Acoustic Stimulation Auditory Perception Female Psychology business Neuroscience psychological phenomena and processes |
| Zdroj: | Neuropsychologia. 51(11) |
| ISSN: | 1873-3514 |
| Popis: | Predictive coding frameworks of perception propose that neural networks form predictions of expected input and generate prediction errors when the external input does not match expectation. We therefore investigated the processing of unexpected sounds and silence in the auditory cortex using fMRI. Unexpected sounds, when compared to expected sounds, evoked greater activation in large areas of the left temporal and insular cortices. Additionally the left middle temporal gyrus exhibited greater activation to unexpected events in general, whether sounds or silence, when compared to the corresponding expected events. These findings support predictive coding models of perception, which suggest that regions of the temporal cortex function to integrate sensory information with predictive signals during auditory perception. |
| Databáze: | OpenAIRE |
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