Functional neuroanatomy of subcomponent cognitive processes involved in verbal working memory

    Authors

    J. S. Bedwell; M. D. Horner; K. Yamanaka; X. B. Li; H. Myrick; Z. Nahas;M. S. George

    Comments

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    Abbreviated Journal Title

    Int. J. Neurosci.

    Keywords

    functional magnetic resonance imaging; healthy adults; neuroimaging; Sternberg working memory task; subcomponent cognitive processes; verbal; working memory; AGE-RELATED-CHANGES; PREFRONTAL CORTEX; NEURAL MECHANISMS; BRAIN-REGIONS; REACTION-TIME; FMRI; MAINTENANCE; ROLES; MANIPULATION; PERFORMANCE; Neurosciences

    Abstract

    bRecent research has used functional magnetic resonance imaging (fMRI) to examine brain regions related to specific subcomponent cognitive processes of verbal working memory. which include initial encoding of material, maintenance of the information over a brief delay interval, and later retrieval of the information. The present study examined each of these subcomponents in 14 healthy adults using a Sternberg verbal working memory task and fMRI. Group proanalysis revealed several brain regions active during all subcomponent processes, which included dorsolateral and ventrolateral prefrontal, parietal, hippocampal, and premotor cortex. Several other brain regions showed activation limited to specific subcomponent processes.

    Journal Title

    International Journal of Neuroscience

    Volume

    115

    Issue/Number

    7

    Publication Date

    1-1-2005

    Document Type

    Article

    Language

    English

    First Page

    1017

    Last Page

    1032

    WOS Identifier

    WOS:000230197800008

    ISSN

    0020-7454

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