Memory Overview - Concepedia

Principles

Definition

Memory is the complex cognitive process involving the encoding, storage, and retrieval of information over time. As a central concept and research area in psychology, neuroscience, and cognitive science, it investigates the neural and psychological mechanisms underlying these processes, the various forms and durations of memory, and its fundamental role in learning, identity, and adaptive behavior.

Ontological type

Memory Systems

Core Processes

Disorders and Impairments

Key developments

Key Figures

Hippocampal Memory Systems era

Brenda Milner [1] was a leading figure in memory research during this era, with work associated with McGill University [3]. Her key contributions include Loss of Recent Memory after Bilateral Hippocampal Lesions [6] (1957) and Disorders of Learning and Memory after Temporal Lobe Lesions in Man [7] (1972), which established the crucial role of hippocampal and medial temporal structures in encoding, storage, and retrieval and helped delineate multiple memory systems. Endel Tulving [2] emerged as a central theorist, with affiliation at Stanford University [4] and Yale University [5] during this era. His contributions include Encoding specificity and retrieval processes in episodic memory [8] (1973) and Availability versus accessibility of information in memory for words [9] (1966), which formalized the encoding–retrieval interplay and the distinction between availability and accessibility, shaping understanding of episodic memory in this era.

Systems Consolidation era

Jürgen Schmidhuber[1] is associated with the University of Colorado Boulder[3] and Technical University of Munich[4] during this era. His key contribution in this era is the Long Short-Term Memory[7], a recurrent neural architecture that enabled robust learning of long-range temporal dependencies and advanced sequential memory modeling. Daniel L. Schacter[2] is affiliated with Harvard University[5] and the Massachusetts Institute of Technology[6], and his work on Implicit memory: History and current status[8] helped reshape theories of memory systems. His subsequent work, Priming and Human Memory Systems[9], further demonstrated distinct memory systems and the role of priming in retrieval, underscoring the dynamic hippocampal–cortical exchanges central to memory consolidation in this era.

Constructive Memory Networks era

Arthur F. Kramer [1] is associated with Johns Hopkins University [3] and University of Washington [4] in this era. His key contribution in this era is showing that exercise training increases the size of the hippocampus and improves memory [7], underscoring the role of aerobic activity in hippocampal plasticity and memory performance. Edward McAuley [2] is associated with Cornell University [5] and University of Minnesota [6] in this era. His work with the same paper [7] advances the constructive memory networks perspective by linking exercise-induced hippocampal changes to memory formation and planning, illustrating how physical activity supports distributed cortical representations and future simulation.