Visual search in patients with left visual hemineglect

A. Sprenger, D. Kömpf, W. Heide*

*Corresponding author for this work
    40 Citations (Scopus)

    Abstract

    In patients with hemi-spatial neglect eye movement patterns during visual search reflect not only inattention for the contralesional hemi-field, but interacting deficits of multiple visuo-spatial and cognitive functions, even in the ipsilesional hemi-field. Evidence for these deficits is presented from the literature and from saccadic scan-path analysis during feature and conjunction search in 10 healthy subjects and in 10 patients with manifest or recovered left visual neglect due to right-hemispheric stroke. Deficits include (1) a rightward shift of spatial representation, (2) deficient spatial working memory and failure of systematic search strategies, leading to multiple re-fixations, more after frontal lesions, and (3) a reduced spotlight of attention and a deficient pop-out effect of color, more after temporo-parietal lesions.

    Original languageEnglish
    JournalProgress in Brain Research
    Volume140
    Pages (from-to)395-416
    Number of pages22
    ISSN0079-6123
    DOIs
    Publication statusPublished - 01.01.2002

    Research Areas and Centers

    • Academic Focus: Center for Brain, Behavior and Metabolism (CBBM)

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