Contrast sensitivity and low spatial frequency discrimimation in hemi-neglect patients

Donatella Spinelli, Cecilia Guariglia, Manfredo Massironi, Luigi Pizzamiglio, Pierluigi Zoccolotti

Research output: Contribution to journalArticle

Abstract

Contrast sensitivity for sinusoidal gratings of different spatial frequencies and low spatial frequency discrimination of high contrast squarewave gratings were measured in 26 right brain damaged patients, 15 of whom showed symptoms of spatial hemi-neglect. No difference was present between neglect and non-neglect patients in either task. A difference in contrast sensitivity restricted to low spatial frequencies was present between controls and patients, independent of neglect. Overall, results indicated that spatial vision at threshold and suprathreshold levels is not selectively impaired in patients with hemi-neglect, a finding consistent with theories which postulate a post-perceptual locus of impairment in this syndrome.

Original languageEnglish
Pages (from-to)727-732
Number of pages6
JournalNeuropsychologia
Volume28
Issue number7
DOIs
Publication statusPublished - 1990

ASJC Scopus subject areas

  • Behavioral Neuroscience
  • Neuropsychology and Physiological Psychology

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