Differential development of relational memory and pattern separation.

Hippocampus
Kelsey M HassevoortNeal J Cohen

Abstract

Researchers have taken a number of different approaches in their exploration of hippocampal function. One approach seeks to describe hippocampal function by probing the memory representations that the hippocampus supports. Another approach focuses on the role of the hippocampus in pattern separation and completion. Each of these approaches to understanding hippocampal function utilizes a distinct set of specialized tasks, and both of these task sets are known to be sensitive to changes in hippocampal function with age and disease status. But the question remains whether the tasks utilized in these two approaches tap into the same aspects of hippocampal function. We explored this question in the context of hippocampal development. Preadolescent children (N = 73) and young adults (N = 41) completed an identical battery of cognitive tasks consisting of a spatial reconstruction relational memory task, the mnemonic similarity task (MST)-an object-based pattern separation task, and a novel hybrid task-the Object Discrimination and Distribution (ODD) Task-designed to integrate and simultaneously tax pattern separation and spatial relational memory. Children did not demonstrate impairments in lure discrimination relative to young adult...Continue Reading

References

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Mar 22, 2008·Science·Arnold BakkerCraig E L Stark
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Citations

Jan 30, 2021·Scientific Reports·Peter E WaisAdam Gazzaley
Aug 28, 2021·Hippocampus·Antoine BouyeureMarion Noulhiane

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