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| Research article summary (published Dec 2002): |
Superior digit memory of abacus experts: an event-related functional MRI study.
Full Abstract
Abacus experts exhibit superior short-term memory for digits, but the underlying neurophysiological mechanism remains unknown. Using event-related fMRI, we examined the brain activity of abacus experts and non-experts during the memory retention period of a delayed match-to-sample task using digits as stimuli. In controls, activity was greater in cortical areas related to verbal working memory, including Broca's area. In contrast, in experts, activity was greater in cortical areas related to visuo-spatial working memory, including the bilateral superior frontal sulcus and superior parietal lobule. This provides neurophysiological evidence that abacus experts utilize a visuo-spatial representation for digit memory.
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Author information
Author/s: Tanaka, Satoshi (S); Michimata, Chikashi (C); Kaminaga, Tatsuro (T); Honda, Manabu (M); Sadato, Norihiro (N);
Affiliation: Department of Psychology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-0094, Japan.
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: Neuroreport (Neuroreport), published in England. (Language: eng)
Reference: 2002-Dec; vol 13 (issue 17) : pp 2187-91
Dates: Created 2002/12/18; Completed 2003/04/15; Revised 2006/11/15;
PMID: 12488794, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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