Effects of Task Difficulty and Training of Visuospatial Working Memory Task on Brain Activity

Takayasu Ando, Keiko Momose, Keita Tanaka, Keiichi Saito

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Citations (Scopus)

    Abstract

    Visuospatial working memory is one of the important cognitive processes and makes it possible to maintain and manipulate the visual information stored in brain systems. In this study, effects of task difficulty and two-week training of visuospatial working memory task on brain activity and its neural mechanisms were investigated. We used visuospatial working memory task with 10 or 30 visual targets displayed on a screen. Each target was a numbered white square and subjects were instructed to click the targets sequentially. Brain activity during performance of the task was measured with functional magnetic resonance imaging (fMRI), before and after two weeks task training. Four subjects practiced the task with 30 visual targets 15 times a day for two weeks, and another four subjects were not practiced. Statistical probability mapping revealed high activity in prefrontal cortex during performance of the task, especially in Brodmann area 10 and 46, which are commonly related to working memory processes. Higher and larger activation was observed for the task with 30 targets than that with 10 targets before training. After training, activated level and area of BA10 and 46 was increased and expanded in tasks with 10.

    Original languageEnglish
    Title of host publicationIFMBE Proceedings
    Pages657-660
    Number of pages4
    Volume23
    DOIs
    Publication statusPublished - 2009
    Event13th International Conference on Biomedical Engineering, ICBME 2008 -
    Duration: 2008 Dec 32008 Dec 6

    Other

    Other13th International Conference on Biomedical Engineering, ICBME 2008
    Period08/12/308/12/6

    Fingerprint

    Brain
    Data storage equipment
    Chemical activation

    Keywords

    • Brodmann area 10
    • Brodmann area 46
    • fMRI
    • Visuospatial working memory

    ASJC Scopus subject areas

    • Biomedical Engineering
    • Bioengineering

    Cite this

    Effects of Task Difficulty and Training of Visuospatial Working Memory Task on Brain Activity. / Ando, Takayasu; Momose, Keiko; Tanaka, Keita; Saito, Keiichi.

    IFMBE Proceedings. Vol. 23 2009. p. 657-660.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Ando, T, Momose, K, Tanaka, K & Saito, K 2009, Effects of Task Difficulty and Training of Visuospatial Working Memory Task on Brain Activity. in IFMBE Proceedings. vol. 23, pp. 657-660, 13th International Conference on Biomedical Engineering, ICBME 2008, 08/12/3. https://doi.org/10.1007/978-3-540-92841-6_161
    Ando, Takayasu ; Momose, Keiko ; Tanaka, Keita ; Saito, Keiichi. / Effects of Task Difficulty and Training of Visuospatial Working Memory Task on Brain Activity. IFMBE Proceedings. Vol. 23 2009. pp. 657-660
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