Poster C67, Sunday, March 25, 1:00-3:00 pm, Exhibit Hall C
Effect of Congruency Between Encoding and Retrieval on Associative Retrieval
Courtney R. Gray1, M. Andrew Rowley2, Kayla McGraw2, Alexandra P. Giglio2, Joanna M. Salerno2, Amy A. Overman2, Nancy A. Dennis1; 1The Pennsylvania State University, 2Elon University
Healthy aging is associated with decline across a wide range of cognitive functions, most notably a deficit in associative memory. While this deficit is assume to be ubiquitous across different types of associations, recent evidence from our lab suggests that older adults may show less impairment for item-item compared to item-context associations. Additionally, our past research has shown that congruency between encoding and retrieval is also a critical factor in accounting for age differences in associative memory. In line with our past work, the current experiment compared memory for both item-item and item-context pairs using the same categories of objects across conditions. Importantly, manner of presentation during retrieval was manipulated so that pairs were presented in a manner that was either congruent or incongruent with their presentation during encoding. In line with recent neuroimaging evidence showing that different types of associations are processed by different MTL subregions, we found that congruent and incongruent associative retrieval are supported by differential recruitment across regions including the prefrontal cortex, MTL and visual cortex. As such, results suggest that the manner of presentation influences neural processes supporting associative memory. Results advance our understanding of the mechanisms supporting associative deficits in aging, as well as processes underlying different types of associative retrieval in young adults.
Topic Area: LONG-TERM MEMORY: Episodic