Repetition suppression to objects is modulated by stimulus-specific expectations.

ABSTRACT: Repeated exposure to the same stimulus results in an attenuated brain response in cortical regions that are activated during the processing of that stimulus. This phenomenon, called repetition suppression (RS), has been shown to be modulated by expectation. Typically, this is achieved by varying the probability of stimulus repetitions (P_rep) between blocks of an experiment, generating an abstract expectation that 'things will repeat'. Here, we examined whether stimulus-specific expectations also modulate RS. We designed a task where expectation and repetition are manipulated independently, using stimulus-specific expectations. We investigated to which extent such stimulus-specific expectations modulated the visual evoked response to objects in lateral occipital cortex (LOC) and

SUBMITTER: Utzerath C 

PROVIDER: S-EPMC5562860 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature