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Cogn Neurosci. 2012;3(3-4):250-9. doi: 10.1080/17588928.2012.697054.

Repetition priming and repetition suppression: Multiple mechanisms in need of testing.

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a Section on Cognitive Neuropsychology, Laboratory of Brain and Cognition , National Institute of Mental Health (NIMH), National Institutes of Health , Bethesda , MD , 20892 , USA.


In our Discussion Paper, we reviewed four theoretical proposals that have the potential to link the neural and behavioral phenomena of Repetition Suppression and Repetition Priming. We argued that among these proposals, the Synchrony and Bayesian Explaining Away models appear to be the most promising in addressing existing data, and we articulated a series of predictions to distinguish between them. The commentaries have helped to clarify some of these predictions, have highlighted additional evidence supporting the Facilitation and Sharpening models, and have emphasized dissociations by repetition lag and brain location. Our reply addresses these issues in turn, and we argue that progress will require the testing of Repetition Suppression, changes in neural tuning, and changes in synchronization throughout the brain and over a variety of lags and task contexts.

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