Temporal specialization of the neural memory system: common and distinct neural correlates of recent and remote memory retrieval
Rudolf Krug, Marko Rajkovic, Marco Caviezel, Else Schneider, Stefan Borgwardt, Annette Beatrix Bruehl, Undine Lang, Christoph Linnemann, Tobias Melcher
TL;DR
This study explores how the brain retrieves recent and remote memories, finding shared and distinct brain regions involved in the process.
Contribution
The study identifies specific brain regions associated with recent and remote memory retrieval within the anterior temporal lobe.
Findings
Bilateral activation in the anterior parts of the STG occurs during both recent and remote memory retrieval.
Bilateral aIC activation is exclusive to recent memory retrieval.
PMR and vmPFC activity is specific to remote memory retrieval.
Abstract
Associative memory (AM) is the most basic and common memory form. It constitutes the foundation of the declarative memory system, including all semantic and episodic memory processes. However, despite numerous studies, recent and remote memory retrieval processes in AM still need further elucidation. Here, we investigated the neurofunctional correlates of recent and remote-related AM retrieval using associative face-name pairs of famous and non-famous individuals in a population of young, healthy adults (N = 23; mean age = 23.39 years). Particular interest was placed on the prominent anterior temporal lobe (ATL) found during recent and remote memory, including the right anterior insular (aIC) cortex and posterior midline region (PMR) previously observed during associative memory retrieval. The results of the present study revealed significant bilateral activation in the anterior parts…
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Taxonomy
TopicsMemory and Neural Mechanisms · Neurobiology of Language and Bilingualism · Neural and Behavioral Psychology Studies