The suppression of repetition enhancement: A review of fMRI studies
until further notice
SourceNeuropsychologia, 51, 1, (2013), pp. 59-66
Article / Letter to editor
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Donders Centre for Cognitive Neuroimaging
PI Group Predictive Brain
PI Group Neurobiology of Language
F.C. Donders Centre for Cognitive Neuroimaging
Subject110 000 Neurocognition of Language; 110 007 PLUS: A neurocomputational model for the Processing of Linguistic Utterances based on the Unification-Space architecture; 110 009 The human brain and Chinese prosody; 110 012 Social cognition of verbal communication; 110 013 Binding and the MUC-model; 110 014 Public activities; 110 023 Syntactic Priming; 180 000 Predictive Brain
Repetition suppression in fMRI studies is generally thought to underlie behavioural facilitation effects (i.e., priming) and it is often used to identify the neuronal representations associated with a stimulus. However, this pays little heed to the large number of repetition enhancement effects observed under similar conditions. In this review, we identify several cognitive variables biasing repetition effects in the BOLD response towards enhancement instead of suppression. These variables are stimulus recognition, learning, attention, expectation and explicit memory. We also evaluate which models can account for these repetition effects and come to the conclusion that there is no one single model that is able to embrace all repetition enhancement effects. Accumulation, novel network formation as well as predictive coding models can all explain subsets of repetition enhancement effects.
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