Lapses of concentration and dyslexic performance on the Ternus task

Chris Davis*, Anne Castles, Ken McAnally, Jacqueline Gray

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    37 Citations (Scopus)


    Recently, Cestnick and Coltheart (Cognition 71 (1999) 231) have reported evidence of abnormal performance on the Ternus apparent motion task in dyslexics. We demonstrate that some aspects of their data may be accounted for by more frequent lapses of concentration in the dyslexic group than in controls. We then report on a study in which a modification of the Ternus procedure was employed to simplify the task and to control for the effects of inattention. The results suggest that dyslexics do genuinely differ from normal readers in their perceptual processing.

    Original languageEnglish
    Pages (from-to)B21-B31
    Number of pages11
    Issue number2
    Publication statusPublished - Sept 2001


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