How Does The Hippocampus Plays A Vital Role? Memory Retrieval?

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ct There is extensive evidence to prove that the hippocampus plays a vital role in memory retrieval. However the extent to what type of memories the hippocampus supports and the process in which retrieval occurs is an ongoing debate. The two theories that are dominant in this debate are the Standard Model of Systems Consolidation (SMSC) and the Multiple Trace Theory (MTT). This paper will provide a review on the evidence supporting these two composing theories, the research providing evidence against the models, and finally their limitations. Additionally, a novel theory coined the Competitive Trace Theory (CTT) will be reviewed in order to conclude whether or not this model can provide a more holistic and accurate representation of the role of the hippocampus in memory retrieval while simultaneously providing explanations for flaws in previously proposed models.

Introduction Extensive research in the field of memory and cognition have provided substantial evidence to prove that the hippocampus is a critical brain mechanism in the role of memory. Although an ongoing debate specifically in memory retrieval is the exact role of this brain structure when extracting memories. There are multiple models of the neural basis of memory retrieval that have posed a hypothesis to answer this exact question. The two theories that are dominant in this debate are the Multiple Trace Theory (MTT) proposed by Nadel and Moscovitch in 1997 and the Standard Model of Systems Consolidation

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