New insights into feature and conjunction search: II. Evidence from Alzheimer's disease.

Journal article

Deficits in inefficient visual search task performance in Alzheimer's disease (AD) have been linked both to a general depletion of attentional resources and to a specific difficulty in performing conjunction discriminations. It has been difficult to examine the latter proposal because the uniqueness of conjunction search as compared to other visual search tasks has remained a matter of debate. We explored both these claims by measuring pupil dilation, as a measure of resource application, whi...

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Authors: Porter, G; Leonards, U; Wilcock, G; Haworth, J; Troscianko, T

• Publication status: Published
• Journal: Cortex; a journal devoted to the study of the nervous system and behavior
• Volume: 46
• Issue: 5
• Pages: 637-649
• Publication date: 2010-05-01
• DOI: 10.1016/j.cortex.2009.04.014
• EISSN: 1973-8102
• ISSN: 0010-9452
• Language: English
• Keywords: Executive Function; Saccades; Fixation, Ocular; Neuropsychological Tests; Eye Movement Measurements; Alzheimer Disease; Time Factors; Pupil; Aged; Humans; Reaction Time; Aged, 80 and over; Female; Male; Visual Perception