Neural repetition suppression reflects fulfilled perceptual expectations.
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ABSTRACT:
SUBMITTER: Summerfield C
PROVIDER: S-EPMC2747248 | biostudies-literature | 2008 Sep
REPOSITORIES: biostudies-literature
Publications
Neural repetition suppression reflects fulfilled perceptual expectations.
Summerfield Christopher C Trittschuh Emily H EH Monti Jim M JM Mesulam M Marsel MM Egner Tobias T
Nature neuroscience 20080901 9
Stimulus-evoked neural activity is attenuated on stimulus repetition (repetition suppression), a phenomenon that is attributed to largely automatic processes in sensory neurons. By manipulating the likelihood of stimulus repetition, we found that repetition suppression in the human brain was reduced when stimulus repetitions were improbable (and thus, unexpected). Our data suggest that repetition suppression reflects a relative reduction in top-down perceptual 'prediction error' when processing ...[more]
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