Format

Send to

Choose Destination
See comment in PubMed Commons below
Nat Neurosci. 2008 Sep;11(9):1004-6. doi: 10.1038/nn.2163.

Neural repetition suppression reflects fulfilled perceptual expectations.

Author information

1
INSERM U742, Université Pierre et Marie Currie, 9 Quai St. Bernard, 75005 Paris, France.

Abstract

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 an expected, compared with an unexpected, stimulus.

PMID:
19160497
PMCID:
PMC2747248
DOI:
10.1038/nn.2163
[Indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Nature Publishing Group Icon for PubMed Central
    Loading ...
    Support Center