Can a temporal processing deficit account for dyslexia?

Author(s): Pollatsek, A., Bilsky, A. B.

Journal/Book: Psychonomic Bull Rev. 1995; 2: 1710 Fortview Rd, Austin, TX 78704. Psychonomic Soc Inc. 501-507.

Abstract: In this comment, we argue that although Farmer and Klein (1995) have provided a valuable review relating deficits in nonreading tasks and dyslexia, their basic claim that a ''temporal processing deficit'' is one possible cause of dyslexia is somewhat vague. We argue that ''temporal processing deficit'' is never clearly defined. Furthermore, we question some of their assumptions concerning an auditory temporal processing deficit related to dyslexia, and we present arguments and data that seem inconsistent with their claims regarding how a visual temporal processing deficit would manifest itself in dyslexic readers. While we agree that some dyslexics have visual problems, we conclude that problems with reading caused by the visual mechanisms that Farmer and Klein postulate are quite rare.

Note: Article K Rayner, Univ Massachusetts, Dept Psychol, Tobin Hall, Amherst, MA 01003 USA

Keyword(s): SACCADIC EYE-MOVEMENTS; LETTER IDENTIFICATION; READING-DISABILITY; LETTER RECOGNITION; PERIPHERAL-VISION; CONTROL CHILDREN; PERCEPTUAL SPAN; NORMAL READERS; MASKING; INFORMATION

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