Developmental versus sensory deficit effects on perceptual processing in the reading disabled

Julie R. Brannan, Mary C. Williams

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

Thirty children and 5 adults participated in two experiments designed to compare visual processing in normal and reading disabled children. The children were aged 8, 10, and 12 years. In Experiment 1, subjects were asked to detect the temporal order of two briefly presented stimuli. In Experiment 2, subjects sorted cards containing bracket stimuli that did or did not produce perceptual grouping effects. Poor readers required more time to make accurate temporal order judgments and showed stronger perceptual grouping effects. For both good and poor readers, the amount of time necessary to make a correct temporal order judgment decreased, and perceptual grouping effects became weaker with age. However, the magnitude of the difference between the groups did not lessen with age. These results suggest that there are visual processing differences between good and poor readers that do not appear to correct by age 12.

Original languageEnglish
Pages (from-to)437-444
Number of pages8
JournalAttention, Perception, and Psychophysics
Volume44
Issue number5
DOIs
StatePublished - Sep 1988
Externally publishedYes

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