Reliability of a novel paradigm for determining hemispheric lateralization of visuospatial function

WHITEHOUSE, ANDREW J. O. and BADCOCK, NICHOLAS and GROEN, MARGRIET A. and BISHOP, DOROTHY V. M. (2009) Reliability of a novel paradigm for determining hemispheric lateralization of visuospatial function. Journal of the International Neuropsychological Society, 15 (6). pp. 1028-1032. ISSN 1355-6177

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Abstract

In most individuals, language production and visuospatial skills are subserved predominantly by the left and right hemispheres, respectively. Functional Transcranial Doppler (fTCD) provides a noninvasive and relatively low-cost method for measuring functional lateralization. However, while the silent word generation task provides an accurate and reliable paradigm for investigating lateralization of language production, there is no comparable gold-standard method for measuring visuospatial skills. Thirty undergraduate students (19 females) completed a task of spatial memory while undergoing fTCD recording. Participants completed this task at two different time points, separated by between 26 to 155 days. The relative activation between hemispheres averaged across all participants was found to be consistent across testing sessions. This was observed at the individual level also, with a quantitative index of lateralization showing high reproducibility. These findings indicate that the use of the spatial memory task with fTCD is a robust methodology for examining laterality of visuospatial skills. (JINS, 2009, 15, 1028–1032.)

Item Type:
Journal Article
Journal or Publication Title:
Journal of the International Neuropsychological Society
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2700/2738
Subjects:
ID Code:
130939
Deposited By:
Deposited On:
29 Jan 2019 15:35
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 11:47