Document Detail


Such stuff as dreams are made on? Elaborative encoding, the ancient art of memory, and the hippocampus.
MedLine Citation:
PMID:  24304746     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
This article argues that rapid eye movement (REM) dreaming is elaborative encoding for episodic memories. Elaborative encoding in REM can, at least partially, be understood through ancient art of memory (AAOM) principles: visualization, bizarre association, organization, narration, embodiment, and location. These principles render recent memories more distinctive through novel and meaningful association with emotionally salient, remote memories. The AAOM optimizes memory performance, suggesting that its principles may predict aspects of how episodic memory is configured in the brain. Integration and segregation are fundamental organizing principles in the cerebral cortex. Episodic memory networks interconnect profusely within the cortex, creating omnidirectional "landmark" junctions. Memories may be integrated at junctions but segregated along connecting network paths that meet at junctions. Episodic junctions may be instantiated during non-rapid eye movement (NREM) sleep after hippocampal associational function during REM dreams. Hippocampal association involves relating, binding, and integrating episodic memories into a mnemonic compositional whole. This often bizarre, composite image has not been present to the senses; it is not "real" because it hyperassociates several memories. During REM sleep, on the phenomenological level, this composite image is experienced as a dream scene. A dream scene may be instantiated as omnidirectional neocortical junction and retained by the hippocampus as an index. On episodic memory retrieval, an external stimulus (or an internal representation) is matched by the hippocampus against its indices. One or more indices then reference the relevant neocortical junctions from which episodic memories can be retrieved. Episodic junctions reach a processing (rather than conscious) level during normal wake to enable retrieval. If this hypothesis is correct, the stuff of dreams is the stuff of memory.
Authors:
Sue Llewellyn
Related Documents :
22975196 - Counterfactuals in action: an fmri study of counterfactual sentences describing physica...
9299066 - Modeling reading, spelling, and past tense learning with artificial neural networks.
25100936 - Brain-like associative learning using a nanoscale non-volatile phase change synaptic de...
25221536 - Inter-trial priming does not affect attentional priority in asymmetric visual search.
15814006 - Overlap in the functional neural systems involved in semantic and episodic memory retri...
1501976 - Art training and the rey figure.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Behavioral and brain sciences     Volume:  36     ISSN:  1469-1825     ISO Abbreviation:  Behav Brain Sci     Publication Date:  2013 Dec 
Date Detail:
Created Date:  2013-12-05     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7808666     Medline TA:  Behav Brain Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  589-607     Citation Subset:  IM    
Affiliation:
Faculty of Humanities, University of Manchester, Manchester M15 6PB, United Kingdom. http://www.humanities.manchester.ac.uk sue.llewellyn@mbs.ac.uk.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Working memory training for adult hearing aid users: study protocol for a double-blind randomized ac...
Next Document:  The analogy between dreams and the ancient art of memory is tempting but superficial.