Usability of a theory of visual attention (TVA) for parameter-based measurement of attention II
Research output: Contribution to journal › Journal article › Research › peer-review
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.
Translated title of the contribution | evidence from two patients with frontal or parietal damage |
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Original language | English |
Journal | Journal of the International Neuropsychological Society |
Volume | 11 |
Issue number | 7 |
Pages (from-to) | 843-54 |
Number of pages | 12 |
ISSN | 1355-6177 |
DOIs | |
Publication status | Published - 2005 |
- Attention, Central Nervous System Cysts, Female, Frontal Lobe, Functional Laterality, Humans, Infarction, Middle Cerebral Artery, Intelligence Tests, Male, Memory, Short-Term, Middle Aged, Neuropsychological Tests, Occipital Lobe, Tomography, X-Ray Computed, Visual Perception
Research areas
ID: 32640010