Chunking and redintegration in verbal short-term memory.
Journal
Journal of experimental psychology. Learning, memory, and cognition
ISSN: 1939-1285
Titre abrégé: J Exp Psychol Learn Mem Cogn
Pays: United States
ID NLM: 8207540
Informations de publication
Date de publication:
May 2020
May 2020
Historique:
pubmed:
1
10
2019
medline:
21
10
2020
entrez:
1
10
2019
Statut:
ppublish
Résumé
Memory for verbal material improves when words form familiar chunks. But how does the improvement due to chunking come about? Two possible explanations are that the input might be actively recoded into chunks, each of which takes up less memory capacity than items not forming part of a chunk (a form of data compression), or that chunking is based on redintegration. If chunking is achieved by redintegration, representations of chunks exist only in long-term memory (LTM) and help to reconstructing degraded traces in short-term memory (STM). In 6 experiments using 2-alternative forced choice recognition and immediate serial recall we find that when chunks are small (2 words) they display a pattern suggestive of redintegration, whereas larger chunks (3 words), show a pattern consistent with data compression. This concurs with previous data showing that there is a cost involved in recoding material into chunks in STM. With smaller chunks this cost seems to outweigh the benefits of recoding words into chunks. (PsycInfo Database Record (c) 2020 APA, all rights reserved).
Identifiants
pubmed: 31566390
pii: 2019-58802-001
doi: 10.1037/xlm0000762
pmc: PMC7144498
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
872-893Subventions
Organisme : Medical Research Council
ID : MC_UU_00005/11
Pays : United Kingdom
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