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Titolo:
Isolating the M(y)-cell response in dyslexia using the spatial frequency doubling illusion
Autore:
Pammer, K; Wheatley, C;
Indirizzi:
Australian Natl Univ, Div Psychol, Canberra, ACT, Australia Australian Natl Univ Canberra ACT Australia ol, Canberra, ACT, Australia
Titolo Testata:
VISION RESEARCH
fascicolo: 16, volume: 41, anno: 2001,
pagine: 2139 - 2147
SICI:
0042-6989(200107)41:16<2139:ITMRID>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
LATERAL GENICULATE-NUCLEUS; RETINAL GANGLION-CELLS; OPTIC-NERVE FIBERS; CONTRAST SENSITIVITY; VISUAL-MOTION; DEVELOPMENTAL DYSLEXIA; COHERENT MOTION; GLAUCOMA; LUMINANCE; PATHWAY;
Keywords:
magnocellular; dyslexia; M(y) cell; retina; spatial frequency doubling;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
49
Recensione:
Indirizzi per estratti:
Indirizzo: Pammer, K Univ Newcastle Upon Tyne, Dept Psychol, Ridley Bldg, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England Univ Newcastle Upon Tyne Ridley BldgNewcastle Upon Tyne Tyne & Wear England NE1 7RU
Citazione:
K. Pammer e C. Wheatley, "Isolating the M(y)-cell response in dyslexia using the spatial frequency doubling illusion", VISION RES, 41(16), 2001, pp. 2139-2147

Abstract

The contribution of M(y)-cell activity within a framework of a magnocellular-deficit theory of dyslexia is currently unknown. Twenty-one dyslexic readers and 19 control readers were compared on their threshold detection for the frequency doubling illusion - an index of M(y)-cell activity, coherent motion, and a visual acuity task. The dyslexic group performed more poorly on detection of the frequency doubling illusion and coherent motion compared to the control group, but both groups performed comparably on the visual acuity task. The results from this study indicate that if a magno deficit exists in dyslexia, it may originate at a retinal level at least partly mediated by M(y)-cell abnormalities. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 04:51:37