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Titolo:
Backward pattern masking of familiar and unfamiliar materials in disabled and normal readers
Autore:
Kruk, RS; Willows, DM;
Indirizzi:
Univ Manitoba, Dept Psychol, Winnipeg, MB R3T 2N2, Canada Univ Manitoba Winnipeg MB Canada R3T 2N2 ol, Winnipeg, MB R3T 2N2, Canada Univ Toronto, Toronto, ON, Canada Univ Toronto Toronto ON CanadaUniv Toronto, Toronto, ON, Canada
Titolo Testata:
COGNITIVE NEUROPSYCHOLOGY
fascicolo: 1, volume: 18, anno: 2001,
pagine: 19 - 37
SICI:
0264-3294(200102)18:1<19:BPMOFA>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
DEPENDENT VISIBLE PERSISTENCE; READING-DISABILITY; SPATIAL-FREQUENCY; MAGNOCELLULAR DEFECT; VISUAL PATHWAYS; DEVELOPMENTAL DYSLEXIA; CONTRAST SENSITIVITY; NORMAL-CHILDREN; EYE-MOVEMENTS; DEFICIT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
53
Recensione:
Indirizzi per estratti:
Indirizzo: Kruk, RS Univ Manitoba, Dept Psychol, Winnipeg, MB R3T 2N2, Canada Univ Manitoba Winnipeg MB Canada R3T 2N2 peg, MB R3T 2N2, Canada
Citazione:
R.S. Kruk e D.M. Willows, "Backward pattern masking of familiar and unfamiliar materials in disabled and normal readers", COGN NEUROP, 18(1), 2001, pp. 19-37

Abstract

A discrimination task involving backward pattern masking was designed to investigate differences between disabled and normal readers in text perception. Masking was observed for both groups with unfamiliar Japanese materials, but disabled readers were less sensitive in discriminating than were normal readers. The same result was obtained with Roman letters, despite the high familiarity of materials to both groups, and with nonwords and words. A significant interaction between group and stimulus onset asynchrony, indicating that disabled readers recovered from masking at a slower rate than normal readers, was found only with nonwords. Visual factors alone could not have mediated group differences. A subgroup of disabled readers, formed on the basis of susceptiblity to masking, showed evidence of a deficit in rate of visual processing. The results are likely due to differences in the quality of representations of visual information used in discrimination and in word recognition.

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Documento generato il 05/04/20 alle ore 09:47:51