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    Modulation of neural activity by angle of rotation during imagined spatial transformations

    20261_downloaded_stream_249.pdf (588.2Kb)
    Access Status
    Open access
    Authors
    Keehner, Madeleine
    Guerin, S.
    Miller, M.
    Turk, D.
    Hegarty, M.
    Date
    2006
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Keehner, Madeleine and Guerin, Scott A. and Miller, Michael B. and Turk, David J. and Hegarty, Mary. 2006. Modulation of neural activity by angle of rotation during imagined spatial transformations. Neuroimage 33 (1): 391-398.
    Source Title
    Neuroimage
    DOI
    10.1016/j.neuroimage.2006.06.043
    Faculty
    Division of Health Sciences
    School of Psychology
    Remarks

    Copyright 2006 Elsevier Ltd. All rights reserved

    URI
    http://hdl.handle.net/20.500.11937/14082
    Collection
    • Curtin Research Publications
    Abstract

    Imagined spatial transformations of objects (e.g., mental rotation) and the self (e.g., perspective taking) are psychologically dissociable. In mental rotation, the viewer transforms the location or orientation of an object relative to stable egocentric and environmental reference frames. In imagined shifts of perspective, the viewer's egocentric reference frame is transformed with respect to stable objects and environment. Using fMRI we showed that during mental transformations of objects the right superior parietal cortex exhibited a positive linear relationship between hemodynamic response and degrees of rotation. By contrast, during imagined transformations of the self, the same regions exhibited a negative linear trend. We interpret this finding in terms of the role of parietal cortex in coding the locations of objects in relation to the body.

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