Assessing the role of different spatial frequencies in word perception by good and poor readers
Författare
Summary, in English
Numerous studies indicate that dyslexic and nondyslexic individuals exhibit different patterns of sensitivity to spatial frequency. However, the extension of this effect to normal (nondyslexic) adults of good and poor reading abilities and the role played by different spatial frequencies in word perception have yet to be determined. In this study, using normal (nondyslexic) adults, we assessed reading ability, spatial frequency sensitivity, and perception of spatially filtered words and nonwords (using a twoalternative forced choice paradigm to avoid artifactual influences of nonperceptual guesswork). Good and poor readers showed different patterns of spatial frequency sensitivity. However, no differences in accuracy of word and nonword perception were found between good and poor readers, despite their differences in spatial frequency sensitivity. Indeed, both reading abilities showed the same superior perceptibility for spatially filtered words over nonwords across different spatial frequency bands. These findings indicate that spatial frequency sensitivity differences extend to normal (nondyslexic) adult readers and that a range of spatial frequencies can be used for word perception by good and poor readers. However, spatial frequency sensitivity may not accurately reveal an individual’s ability to perceive words.
Publiceringsår
2005
Språk
Engelska
Sidor
961-971
Publikation/Tidskrift/Serie
Memory & Cognition
Volym
33
Issue
6
Dokumenttyp
Artikel i tidskrift
Förlag
Springer
Ämne
- Psychology
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1532-5946