Theories of Systems Memory Consolidation

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Abstract:

Ever found yourself able to perform a task (e.g., tying your shoes) without any clear memory of the day you learned to do so? The process by which semantic knowledge forms from individual episodes has canonically been termed “systems memory consolidation” and, though studied extensively, is somewhat jumbled with theories that are subject to debate. These theories include the historical foundations that are Standard Consolidation Theory (SCT) and Multiple Trace Theory (MTT), extensions of the latter in Trace Transformation Theory (TTT), and other developments such as Event/Scene Reconstruction Theory (ERT) and Competitive Trace Theory (CTT). Surrounding the process of consolidation are many other aspects that have also been contemplated theoretically, such as: the initial formation of memory, mechanisms driving consolation-related plasticity (e.g., Parallel Pathway Theory), and the uniqueness vs universality of memory as a neural process (in comparison with e.g., perception, as in Tensor Memory Theory), etc. In this talk, we will survey these theories, providing brief historical context for those unacquainted with the topic, then contrasting the theories with a focus on their mathematical descriptions and model predictions. My hope is for this to be an interactive discussion, so please bring your expertise and curiosity!

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