Specific reading disability: Differences in contrast sensitivity as a function of spatial frequency

W. J. Lovegrove, A. Bowling, D. Badcock, M. Blackwood

Research output: Contribution to journalArticle

283 Citations (Scopus)

Abstract

Contrast thresholds for sine-wave gratings of spatial frequencies of 2, 4, 12, and 16 cycles per degree were determined for normal and disabled readers at a range of stimulus durations. Normal readers demonstrated monotonically decreasing sensitivity with increasing spatial frequency at exposure durations between 40 and 100 milliseconds. At exposure durations of 150 to 1000 milliseconds, they showed peak sensitivity at 4 cycles per degree. In comparison, disabled readers showed monotonically decreasing sensitivity with increasing spatial frequency at all stimulus durations. The difference in sensitivity pattern across spatial frequencies was greatest at stimulus durations approximately equal to fixation durations during reading.

Original languageEnglish
Pages (from-to)439-440
Number of pages2
JournalScience
Volume210
Issue number4468
DOIs
Publication statusPublished - 1 Jan 1980
Externally publishedYes

Fingerprint Dive into the research topics of 'Specific reading disability: Differences in contrast sensitivity as a function of spatial frequency'. Together they form a unique fingerprint.

  • Cite this