Left neglect dyslexia and the effect of stimulus duration

Lisa S. Arduino, Giuseppe Vallar, Cristina Burani

Research output: Contribution to journalArticle

Abstract

The present study investigated the effects of the duration of the stimulus on the reading performance of right-brain-damaged patients with left neglect dyslexia. Three Italian patients read aloud words and nonwords, under conditions of unlimited time of stimulus exposure and of timed presentation. In the untimed condition, the majority of the patients' errors involved the left side of the letter string (i.e., neglect dyslexia errors). Conversely, in the timed condition, although the overall level of performance decreased, errors were more evenly distributed across the whole letter string (i.e., visual - nonlateralized - errors). This reduction of neglect errors with a reduced time of presentation of the stimulus may reflect the read out of elements of the letter string from a preserved visual storage component, such as iconic memory. Conversely, a time-unlimited presentation of the stimulus may bring about the rightward bias that characterizes the performance of neglect patients, possibly by a capture of the patients' attention by the final (rightward) letters of the string.

Original languageEnglish
Pages (from-to)662-665
Number of pages4
JournalNeuropsychologia
Volume44
Issue number4
DOIs
Publication statusPublished - 2006

Keywords

  • Italian neglect dyslexia
  • Stimulus time presentation

ASJC Scopus subject areas

  • Behavioral Neuroscience
  • Neuropsychology and Physiological Psychology

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