Research

Mental imagery scanning in autism spectrum disorder


Reference:

Maras, K. L., Wimmer, M. C., Robinson, E. J. and Bowler, D. M., 2014. Mental imagery scanning in autism spectrum disorder. Research in Autism Spectrum Disorders, 8 (10), pp. 1416-1423.

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    Official URL:

    http://dx.doi.org/10.1016/j.rasd.2014.07.003

    Abstract

    Navigational impairments have previously been reported in autism spectrum disorder (ASD). The present study examined the ability of individuals with ASD to generate and scan their mental image of a previously viewed map. Twenty-one ASD adults and 20 age- and IQ-matched comparison adults memorised a map of a fictitious island containing a number of landmarks. They then mentally imagined the map and were timed as they imagined a character walking between the various landmarks. Consistent with previous mental imagery research with typical individuals, there was a linear relationship between the time that participants took to mentally scan between the landmarks and the actual distance between the landmarks on the picture, and this was the case for both typical and ASD participants. ASD and comparison participants’ mental image scanning times were both also influenced by misleading signposts in the picture that indicated different distances between landmarks, thus providing evidence that their mental images were penetrable by top-down information. Although ASD and comparison participants showed very similar mental imagery scanning performance, verbal IQ and working memory were significantly and positively associated with image scanning performance for the ASD, but not the comparison group. This finding furthers the notion of a compensatory reliance on different strategies in ASD to achieve similar surface performance to individuals from the general population. Findings have practical implications for supporting navigation strategies in ASD.

    Details

    Item Type Articles
    CreatorsMaras, K. L., Wimmer, M. C., Robinson, E. J. and Bowler, D. M.
    DOI10.1016/j.rasd.2014.07.003
    DepartmentsFaculty of Humanities & Social Sciences > Psychology
    Research CentresCentre for Applied Autism Research
    Publisher StatementMaras_et_al_ASD_island_scanning_final_accepted_author_copy.pdf: NOTICE: this is the author’s version of a work that was accepted for publication in Research in Autism Spectrum Disorders. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Maras, K. L., Wimmer, M. C., Robinson, E. J., & Bowler, D. M. (2014). Mental imagery scanning in autism spectrum disorder. Research in Autism Spectrum Disorders, 8(10), 1416-1423
    RefereedYes
    StatusPublished
    ID Code40108

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