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Prediction error and repetition suppression have distinct effects on neural representations of visual information

Predictive coding theories argue that recent experience establishes expectations in the brain that generate prediction errors when violated. Prediction errors provide a possible explanation for repetition suppression, where evoked neural activity is attenuated across repeated presentations of the sa...

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Autores principales: Tang, Matthew F, Smout, Cooper A, Arabzadeh, Ehsan, Mattingley, Jason B
Formato: Online Artículo Texto
Lenguaje:English
Publicado: eLife Sciences Publications, Ltd 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6312401/
https://www.ncbi.nlm.nih.gov/pubmed/30547881
http://dx.doi.org/10.7554/eLife.33123
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author Tang, Matthew F
Smout, Cooper A
Arabzadeh, Ehsan
Mattingley, Jason B
author_facet Tang, Matthew F
Smout, Cooper A
Arabzadeh, Ehsan
Mattingley, Jason B
author_sort Tang, Matthew F
collection PubMed
description Predictive coding theories argue that recent experience establishes expectations in the brain that generate prediction errors when violated. Prediction errors provide a possible explanation for repetition suppression, where evoked neural activity is attenuated across repeated presentations of the same stimulus. The predictive coding account argues repetition suppression arises because repeated stimuli are expected, whereas non-repeated stimuli are unexpected and thus elicit larger neural responses. Here, we employed electroencephalography in humans to test the predictive coding account of repetition suppression by presenting sequences of visual gratings with orientations that were expected either to repeat or change in separate blocks of trials. We applied multivariate forward modelling to determine how orientation selectivity was affected by repetition and prediction. Unexpected stimuli were associated with significantly enhanced orientation selectivity, whereas selectivity was unaffected for repeated stimuli. Our results suggest that repetition suppression and expectation have separable effects on neural representations of visual feature information.
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spelling pubmed-63124012019-01-04 Prediction error and repetition suppression have distinct effects on neural representations of visual information Tang, Matthew F Smout, Cooper A Arabzadeh, Ehsan Mattingley, Jason B eLife Neuroscience Predictive coding theories argue that recent experience establishes expectations in the brain that generate prediction errors when violated. Prediction errors provide a possible explanation for repetition suppression, where evoked neural activity is attenuated across repeated presentations of the same stimulus. The predictive coding account argues repetition suppression arises because repeated stimuli are expected, whereas non-repeated stimuli are unexpected and thus elicit larger neural responses. Here, we employed electroencephalography in humans to test the predictive coding account of repetition suppression by presenting sequences of visual gratings with orientations that were expected either to repeat or change in separate blocks of trials. We applied multivariate forward modelling to determine how orientation selectivity was affected by repetition and prediction. Unexpected stimuli were associated with significantly enhanced orientation selectivity, whereas selectivity was unaffected for repeated stimuli. Our results suggest that repetition suppression and expectation have separable effects on neural representations of visual feature information. eLife Sciences Publications, Ltd 2018-12-14 /pmc/articles/PMC6312401/ /pubmed/30547881 http://dx.doi.org/10.7554/eLife.33123 Text en © 2018, Tang et al http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited.
spellingShingle Neuroscience
Tang, Matthew F
Smout, Cooper A
Arabzadeh, Ehsan
Mattingley, Jason B
Prediction error and repetition suppression have distinct effects on neural representations of visual information
title Prediction error and repetition suppression have distinct effects on neural representations of visual information
title_full Prediction error and repetition suppression have distinct effects on neural representations of visual information
title_fullStr Prediction error and repetition suppression have distinct effects on neural representations of visual information
title_full_unstemmed Prediction error and repetition suppression have distinct effects on neural representations of visual information
title_short Prediction error and repetition suppression have distinct effects on neural representations of visual information
title_sort prediction error and repetition suppression have distinct effects on neural representations of visual information
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6312401/
https://www.ncbi.nlm.nih.gov/pubmed/30547881
http://dx.doi.org/10.7554/eLife.33123
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