Carballo RO

Language: Spanish
References: 20
Page: 14-20
PDF size: 133.25 Kb.

ABSTRACT

A task of visual detection of the coherent movement, made in the Neurosciences and Processing of Images and Signs Center from Oriente University was applied in Santiago de Cuba, by means of which it was determined that the dyslexic students studied, could detect the visual movement, but they made many mistakes and omissions, indicative of a slight weakening of the visual detection process. Perceptive deficiencies were also observed in them, related with the increment of the density of the points which moved in the panels and their percentage decrease, as well as with the increase of the response time, showing of a reduction of the sensibility to the visual perception of movement in these students with development dyslexia.

REFERENCES

1. Matute E. Cerebro y lectura. México, DF: CUCSH-UdeG, 2003.

2. Martín Loeches M. La mente del homo sapiens. Madrid: Aguilar-Santillana, 2008.

3. Karnath HO, Bulthoff HH. Neuronal representation of object orientation. Neuropsychologia 2000; 38:1235-41.

4. Kandel ER, Schwartz JH, Jessell TH. Principles of neural science. New York: McGraw-Hill, 2004.

5. Bruce Goldstein E. Sensación y percepción. Madrid : Internacional Thomson Editores, 2006.

6. Stein J. The magnocellular theory of developmental dyslexia. Dyslexia 2001; 7:12–36.

7. Stein J. Visual motion sensitivity and reading. Neuropsychologia 2003; 41:1785–93.

8. Williams MJ, Stuart GW, Castles A, McAnally KI. Contrast sensitivity in subgroups of developmental dyslexia. Vision Res 2003; 43:467–77.

9. Slaghuis WL, Ryan JF. Directional motion contrast sensitivity in developmental dyslexia. Vision Res 2006; 46:3291–3303.

10. McCandliss BD, Cohen L, Dehaene S. The visual word form area: expertise for reading in the fusiform gyrus. Trends Cogn Sci 2003; 7:293–9.

11. Carboni-Román A, Río Grande D del, Capilla A, Maestú F, Ortiz T. Bases neurobiológicas de las dificultades de aprendizaje. Rev Neurol 2006; 42(Supl 2): S171-5.

12. Talcott JB, Hansen PC, Assoku EL, Stein JF. Visual motion sensitivity in dyslexia: evidence for temporal and energy integration. Neuropsychologia 2000; 38:935–43.

13. Schlaggar BL, McCandliss BD. Development of neural systems for reading. Annu Rev Neurosci 2007; 30:475-503.

14. Gibson JJ. What give rise to the perception of motion? New York: Psychological Review, 1968.

15. Lihong W, Yoshiki K, Ryusuke K. Spatiotemporal separability in the human cortical response to visual motion speed: a magnetoencephalography study. Neurosci Res 2003; 47:109-16.

16. Gibson JJ. The perception of visual world. Boston: Houghton Mifflin, 1966.

17. Maurer U, McCandliss BD. The development of visual expertise for words: the contribution of electrophysiology. [consulta: 13 mayo 2011].

18. Artigas-Pallarés J. Dislexia: enfermedad, trastorno o algo distinto. Rev Neurol 2009; 48(Supl 2):S63-9.

19. Lyytinen H, Guttorm TK, Huttunen T, Hämäläinen J, Leppänen PHT, Vesterinen M. Psychophysiology of developmental dyslexia: a review of findings including studies of children at risk for dyslexia. J Neuroling 2005; 18:167–95.

20. Wijers AA, Been PH, Romkes KS. Dyslexics show a deviant lateralization of attentional control: a brain potential study. Neurosci Lett 2005; 374:87–91.