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Usability of a theory of visual attention (TVA) for parameter-based measurement of attention II: Evidence from two patients with frontal or parietal damage

Published online by Cambridge University Press:  16 December 2005

PETER BUBLAK
Affiliation:
General and Experimental Psychology, Ludwig Maximilian University, Munich, Germany
KATHRIN FINKE
Affiliation:
General and Experimental Psychology, Ludwig Maximilian University, Munich, Germany
JOSEPH KRUMMENACHER
Affiliation:
General and Experimental Psychology, Ludwig Maximilian University, Munich, Germany
RUDOLF PREGER
Affiliation:
Neurological Rehabilitation Center, Kipfenberg, Germany
SØREN KYLLINGSBÆK
Affiliation:
Center for Visual Cognition, University of Copenhagen, Copenhagen, Denmark
HERMANN J. MÜLLER
Affiliation:
General and Experimental Psychology, Ludwig Maximilian University, Munich, Germany
WERNER X. SCHNEIDER
Affiliation:
General and Experimental Psychology, Ludwig Maximilian University, Munich, Germany

Abstract

Based on a ‘Theory of Visual Attention’ (TVA), whole and partial report of brief letter arrays is presented as a diagnostic tool to estimate four clinically significant attentional components: perceptual processing speed, visual working memory storage capacity, efficiency of top-down control, and spatial distribution of attention. The procedure used was short enough to be applicable within a standard clinical setting. Two brain-damaged patients, selected based on lesion location and neuropsychological test profile, were compared to a control group of 22 healthy subjects. One patient with a right inferior parietal lesion showed a pattern of non-spatially and spatially lateralized attention deficits that is typically found in neglect patients. Results from the second patient supported the decisive role of superior frontal brain structures for top-down control of visual attention. This double dissociation supports the hypothesis that, even with a short version of whole and partial report, valid and meaningful results can be obtained in the neuropsychological assessment of attention deficits. The potential and constraints of TVA-based parameter estimation for the clinical application are discussed. (JINS, 2005, 11, 843–854.)

Type
Research Article
Copyright
© 2005 The International Neuropsychological Society

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