Activity reductions in perirhinal cortex predict conceptual priming and familiarity-based recognition.

ABSTRACT: Although it is well established that regions in the medial temporal lobes are critical for explicit memory, recent work has suggested that one medial temporal lobe subregion--the perirhinal cortex (PRC)--may also support conceptual priming, a form of implicit memory. Here, we sought to investigate whether activity reductions in PRC, previously linked to familiarity-based recognition, might also support conceptual implicit memory retrieval. Using a free association priming task, the current study tested the prediction that PRC indexes conceptual priming independent of contributions from perceptual and response repetition. Participants first completed an incidental semantic encoding task outside of the MRI scanner. Next, they were scanned during performance of a free association priming task

SUBMITTER: Wang WC 

PROVIDER: S-EPMC3923843 | biostudies-literature | 2014 Jan

REPOSITORIES: biostudies-literature