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How chunks, long-term working memory and templates offer a cognitive explanation for neuroimaging data on expertise acquisition: A two-stage framework

Abstract : Our review of research on PET and fMRI neuroimaging of experts and expertise acquisition reveals two apparently discordant patterns in working-memory-related tasks. When experts are involved, studies show activations in brain regions typically activated during long-term memory tasks that are not observed with novices, a result that is compatible with functional brain reorganization. By contrast, when involving novices and training programs, studies show a decrease in brain regions typically activated during working memory tasks, with no functional reorganization. We suggest that the latter result is a consequence of practice periods that do not allow important structures to be completely acquired: knowledge structures (i.e., Ericsson and Kintsch's retrieval structures; Gobet and Simon's templates) and in a lesser way, chunks. These structures allow individuals to improve performance on working-memory tasks, by enabling them to use part of long-term memory as working memory, causing a cerebral functional reorganization. Our hypothesis is that the two brain activation patterns observed in the literature are not discordant, but involve the same process of expertise acquisition in two stages: from decreased activation to brain functional reorganization. The dynamic of these two physiological stages depend on the two above-mentioned psychological constructs: chunks and knowledge structures.
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https://hal.univ-rennes2.fr/hal-01874141
Contributor : Laurence Leroux Connect in order to contact the contributor
Submitted on : Friday, September 14, 2018 - 9:40:28 AM
Last modification on : Tuesday, April 19, 2022 - 10:12:26 AM

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Alessandro Guida, Fernand Gobet, Hubert Tardieu, Serge Nicolas. How chunks, long-term working memory and templates offer a cognitive explanation for neuroimaging data on expertise acquisition: A two-stage framework. Brain and Cognition, Elsevier, 2012, 79 (3), pp.221 - 244. ⟨10.1016/j.bandc.2012.01.010⟩. ⟨hal-01874141⟩

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