Logo image
Striking a chord with healthy aging: memory system cooperation is related to preserved configural response learning in older adults
Journal article   Open access   Peer reviewed

Striking a chord with healthy aging: memory system cooperation is related to preserved configural response learning in older adults

Michelle W Voss, Rachel Clark, Michael Freedberg, Timothy Weng and Eliot Hazeltine
Neurobiology of aging, Vol.63, pp.44-53
03/2018
DOI: 10.1016/j.neurobiolaging.2017.11.001
PMCID: PMC7814217
PMID: 29223679
url
https://www.ncbi.nlm.nih.gov/pmc/articles/7814217View
Open Access

Abstract

Evidence from tasks that primarily tap either hippocampal- or striatal-based memory systems suggests that although these systems often compete for control of behavior, aging is associated with greater cooperation between them. This may stem from altered prefrontal cortex function. Here, we use a configural response task designed to engage both memory systems to test how age affects their interaction with cortical regions including the prefrontal cortex. We found that although older and younger adults learned just as well, older adults showed greater initial activation in cortical networks associated with visuospatial-action mapping and resolving conflict for competing memory representations. Older adults also showed greater functional coupling of the striatum with the left inferior frontal gyrus, in parallel with similar hippocampal coupling to ventral visual regions as young adults. Overall, our results support the proposal that aging is associated with more cooperative memory systems, but we did not find that greater cooperation is associated with less interaction between the prefrontal cortex and core memory system structures during learning.
Healthy Aging - psychology Cerebral Cortex - diagnostic imaging Healthy Aging - physiology Hippocampus - diagnostic imaging Cognitive Aging - physiology Learning - physiology Magnetic Resonance Imaging Cognitive Aging - psychology Neuronal Plasticity Corpus Striatum - physiology Cerebral Cortex - physiology Hippocampus - physiology Corpus Striatum - diagnostic imaging Prefrontal Cortex - physiology Prefrontal Cortex - diagnostic imaging Memory - physiology

Details

Metrics

20 Record Views
Logo image