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Visual memory transformations in dyslexia

Barnes, James and Hinkley, Lisa and Masters, Stuart and Boubert, Laura (2007) Visual memory transformations in dyslexia. Perceptual and Motor Skills, 104 . pp. 881-891. ISSN 0031-5125

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Official URL: http://ammons.ammonsscientific.com/php/display_smr...


Representational Momentum refers to observers' distortion of recognition memory for pictures that imply motion because of an automatic mental process which extrapolates along the implied trajectory of the picture. Neuroimaging evidence suggests that activity in the magnocellular visual pathway is necessary for representational momentum to occur. It has been proposed that individuals with dyslexia have a mangocellular deficit, so it was hypothesised that these individuals would show reduced or absent representational momentum. In this study, 30 adults with dyslexia and 30 age-matched controls were compared on two tasks, one linear and one rotation, which had previously elicited the representational momentum effect. Analysis indicated significant differences in the performance of the two groups, with the dyslexia group having a reduced susceptibility to representational momentum in both linear and rotational directions. the findings highlight that deficits in temporal spatial processing may contribute to the perceptual profile of dyslexia.

Item Type:Article
Research Community:University of Westminster > Social Sciences, Humanities and Languages, School of
University of Westminster > Electronics and Computer Science, School of
ID Code:5026
Deposited On:09 Jun 2008 11:06
Last Modified:15 Oct 2009 15:38

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