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Conscious awareness and memory systems in the brain.
Deborah E Hannula1, Greta N Minor1, Dana Slabbekoorn1
1University of Wisconsin, Milwaukee, Wisconsin, USA.
Wiley Interdisciplinary Reviews. Cognitive Science
|April 3, 2023
Summary
Conscious memory relies on the medial temporal lobe (MTL), but unconscious memory, like priming, involves different brain processes. Research challenges traditional memory systems, suggesting the hippocampus binds information for both conscious and unconscious recall.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Philosophy of Mind
Background:
- Traditional memory models distinguish conscious, medial temporal lobe (MTL)-dependent memory from unconscious, performance-based memory.
- The declarative memory theory, while influential, is increasingly challenged by evidence of MTL involvement in non-reportable memory.
Purpose of the Study:
- To examine the evolution of memory systems perspectives.
- To critically evaluate evidence challenging the standard model of memory.
- To highlight challenges and innovative methods in studying unconscious memory.
Main Methods:
- Review of early neuropsychological work and theoretical perspectives.
- Critical evaluation of scientific evidence.
- Discussion of innovative laboratory methods for studying unconscious memory.
Main Results:
- Evidence suggests MTL structures contribute to memory beyond explicitly reportable types.
- The hippocampus is critical for relational memory binding and representation, even unconsciously.
- Similarities may exist between certain types of priming and familiarity-based recognition.
Conclusions:
- Recent perspectives emphasize processing operations and representation qualities over strict memory type distinctions.
- Alternative models propose broader roles for the hippocampus and question sharp divides between conscious and unconscious memory processes.
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