Overt and covert processing of left-side information in unilateral neglect investigated with chimeric drawings

Andrea Peru, Valentina Moro, Renato Avesani, Salvatore Aglioti

Research output: Contribution to journalArticle

Abstract

Overt and covert processing of contralesional information was investigated in 6 right-brain-damaged (RBD) patients with or without left hemispatial neglect by using three bedside tests that require the analysis of whole, half, and chimeric drawings. In the first task, patients named these stimuli. In the second task, patients designated as 'same' or 'different' drawings in a pair where one drawing was always whole and the other could be whole, half, or chimeric. In the third task, patients pointed to the more veridical, complete drawing that was presented with one half drawing, and two chimeric drawings. Although patients with no neglect performed without error in all conditions, patients with severe neglect based their performance on the analysis of the right side of the stimuli. In patients with mild neglect, not only did performance rely upon the right side of stimuli but it was also modulated by left-side information acquired either overtly or unconsciously.

Original languageEnglish
Pages (from-to)621-630
Number of pages10
JournalJournal of Clinical and Experimental Neuropsychology
Volume18
Issue number5
Publication statusPublished - 1996

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology
  • Psychology(all)
  • Clinical Psychology

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