Neuroimaging evidence for processes underlying repetition of ignored stimuli.

ABSTRACT: Prolonged response times are observed with targets having been presented as distractors immediately before, called negative priming effect. Among others, inhibitory and retrieval processes have been suggested underlying this behavioral effect. As those processes would involve different neural activation patterns, a functional magnetic resonance imaging (fMRI) study including 28 subjects was conducted. Two tasks were used to investigate stimulus repetition effects. One task focused on target location, the other on target identity. Both tasks are known to elicit the expected response time effects. However, there is less agreement about the relationship of those tasks with the explanatory accounts under consideration. Based on within-subject comparisons we found clear differences between the

SUBMITTER: Bauer E 

PROVIDER: S-EPMC3341391 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature