Influencias del color de fondo sobre el procesamiento de patrones visuales jerárquicos en sujetos disléxicos, malos lectores y normolectores

  1. Vidal, Joaquín
  2. Elosúa de Juan, María Rosa
  3. Luna Blanco, María Dolores
Revista:
Acción psicológica

ISSN: 1578-908X

Año de publicación: 2004

Volumen: 3

Número: 2

Páginas: 101-109

Tipo: Artículo

DOI: 10.5944/AP.3.2.505 DIALNET GOOGLE SCHOLAR

Otras publicaciones en: Acción psicológica

Objetivos de desarrollo sostenible

Resumen

The aim of this work was to examine whether dyslexia is associated to a deficit in the processing of global information of hierarchical patterns which is mediated by the magnocelular system. Moreover, effects of color background on global information processing are tested in normal readers, poor readers and dyslexics. The results showed that red background color impaired global processing in ail three groups (normal readers, poor readers and dyslexics). These results are not congruent with the theory that proposes one deficit in the magnoceilular processing system in disabled readers.

Referencias bibliográficas

  • American Psychiatric Association (APA) (1994). Diagnostic and statistical manual ofmental disorders (4° ed.). Washington, D.C:APA.
  • Breitmeyer, B. (1980). Unmasking visual masking: a look at the "why" behind the veil of the "how". Psychology Review, 87,52-69.
  • Breitmeyer, B.G. y Breier, J.!. (1994). Effects ofbackground color on reaction time to stimuli varying in size and contrast: Inferences about human channels. Vision Research, 34, 1039-1045.
  • Breitmeyer, B.G. y Williams, M.C. (1990). Effects of isoluminant-background color on metacontrast and stroboscopic motion: Interactions between sustained (P) and transient (M) channels. Vision Research, 30, 1069-1075.
  • Chase, C.H. (1996). Avisual deficit model of developmental dyslexia. En C.H. Chase, G.D. Rosen y G.F. Sherman (Eds.) Developmental dyslexia: neurall cognitive and genetic mechanisms, (pp.127-156). Timonium, MD: York Press.
  • Chase, c.H., Ashourzadeh, A., Kelly; C., Monfette, S. y Kinsey, K. (2003). Can the magnocellular pathway read? Evidence from studies of color. Vision Research,43, 1211-1222.
  • Han, S. y Humphreys, G. (1999). lnteractions between perceptual organization based on Gestalt laws and those based on hierarchical processing. Perception and Psychophysics, 61, 1287- 1298.
  • lovino, 1.,. Fletcher, J.M., Breitmeyer, B.G. y Foorman, B.R. (1998). Colored overlays for visual perceptual deficits in children with reading disability and attention deficitJhyperactivity disorder: are they differentially effective? Joumal of Clinical and Experimental Neuropsychology, 20 (6), 791-806.
  • Lewis, J.P. Y Frick, R.W. (1999). Row blindness in Gestalt grouping and developmental dyslexia. Neuropsychologia, 37, 385-393.
  • Livingstone, M.S. y Hubel, D.H. (1984). Anatomy and physiology of a color system in the primate visual cortex. Journal of Neuroscience, 4, 309- 356.
  • Livingstone, M.S., Rosen, G.D., Drislane, EW. y Galaburda, A.M. (1991). Physiological and anatomical evidence for a magnocellular defect in developmental dyslexia. Proceedings of the National Academy of Sciences. USA. 88, 7943- 7947.
  • Lovegrove, W.J. (1991). Spatial frecuency processing in dyslexic and normal readers. En J.E Stein (Ed.) Vision and Visual Dyslexia: Vis ion and Visual dysfunction Vol 13, (pp. 148-153). CRC Press.
  • Marrocco, R.T., McClurkin, J.W. y Young, R.A. (1988). Spatial summation and conduction latency c!assification of cells in the lateral geniculate nuc!eus of macaques. Journal of Neuroscience, 2, 1275-1291.
  • Michimata, C., Okubo, M. y Mugishima, Y. (1999). Effects of background color on the global and local processing of hierarchically organized stimoli. Journal ofCognitive Neuroscience, 11 (1), 1-8.
  • Navon, D. (1977). Forest before trees: The precedence of global features in visual perception. Cognitive Psychology, 9, 353-383.
  • Ramus, E (2001) Outstanding Questions about Phonological Processing in Dyslexia. Dyslexia, 7, 197-216.
  • Rutter, M. (1978). Prevalence and types of dyslexia. En A.L. Benton y D. Pearl, (Eds.) An Appraisal of Current Knowledge (pp. 5-28). New York: Oxford University Press.
  • Sampascual, G. (1990). Atención selectiva en buenos y malos lectores. Revista de Psicología General y Aplicada, 43,491-498.
  • Sirnmers, A.J. y Bex, P.J. (2001). Deficit of visual contour integration in dyslexia. Investigative Ophthalmology and Visual Science, 42 (J 1), 2737- 2742.
  • Skottun, RC. (1997). The magnocellolar deficittheory of dyslexia. Trends in Neuroscience, 20 (9), 397-398.
  • Skottun, B.C. (2000). The magnocellular deficit theory of dyslexia: the evidence from contrast sensitivity. Vision Research, 40> 111-127.
  • Skottun, RC. y Parke, L.A. (1999). The possible relationship betwen visual deficits and dyslexia. Journal ofLearning Disabilities, 32, 2-5.
  • Snow, C.E., Burus, M.S. y Griffin, P. (1998). Preventing Reading Difficulties in Young Children. Committee on the Prevention of Reading Difficulties in Young Children, National Research Council.
  • Solan, HA (1998). Influence of varying luminance and wavelength on comprehension and reading efficiency: a brief review of three studes. Journal ofOptometric Vision Development, 29 (3), 98-103.
  • Tallal, P. (1980). Auditory temporal perception, phonics, and reading disabilities in children. Brain and Language, 9 (2), 182-198.
  • Williams, M.C. y Bologna, N.C.(1985). Perceptual grouping in good and poor readers. Perception and Psychophysics, 38, 367-374.
  • Yuste, C. (1995). Inteligencia general y factorial. Madrid: TEA Ediciones.
Fuente de los datos: Dialnet