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.
机构:
NMR Ctr, Massachusetts Gen Hosp, Harvard Med Sch, Charlestown, MA 02129 USANMR Ctr, Massachusetts Gen Hosp, Harvard Med Sch, Charlestown, MA 02129 USA
Bar, M
;
Aminoff, E
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机构:
NMR Ctr, Massachusetts Gen Hosp, Harvard Med Sch, Charlestown, MA 02129 USANMR Ctr, Massachusetts Gen Hosp, Harvard Med Sch, Charlestown, MA 02129 USA
机构:
NMR Ctr, Massachusetts Gen Hosp, Harvard Med Sch, Charlestown, MA 02129 USANMR Ctr, Massachusetts Gen Hosp, Harvard Med Sch, Charlestown, MA 02129 USA
Bar, M
;
Aminoff, E
论文数: 0引用数: 0
h-index: 0
机构:
NMR Ctr, Massachusetts Gen Hosp, Harvard Med Sch, Charlestown, MA 02129 USANMR Ctr, Massachusetts Gen Hosp, Harvard Med Sch, Charlestown, MA 02129 USA