%0 Journal Article
%T Saccadic movements using eye-tracking technology in individuals with autism spectrum disorders: pilot study
%A Mercadante
%A Marcos T.
%A Macedo
%A Elizeu C.
%A Baptista
%A Patr¨ªcia M.
%A Paula
%A Cristiane S.
%A Schwartzman
%A Jos¨¦ S.
%J Arquivos de Neuro-Psiquiatria
%D 2006
%I Academia Brasileira de Neurologia - ABNEURO
%R 10.1590/S0004-282X2006000400003
%X objective: to verify differences in the visual scanning strategies between pervasive developmental disorders (pdd) and controls when they are observing social and non-social pictures. method: pdd group (pddg) comprised by 10 non-retarded subjects (age from 4 to 41) and age-matched control group (cg). nine social pictures with human beings (including two pictures of cat mask), and 3 nonsocial pictures of objects were presented for 5 seconds. saccadic movements and fixation were recorded with equipment eyegaze£¿ (lc technologies inc.). results: pddg (mean=292.73, se=67.62) presented longer duration of saccadic movements for social pictures compared to cg (mean=136.06, se=14.01) (p=0.04). the cg showed a higher number of fixations in the picture 7 (a women using a cat mask, with the eyes erased) (cg: mean=3.40; pddg: mean=1.80; p=0.007). conclusion: the results suggest differences in strategies that pdd explore human picture. moreover, these strategies seem not to be affected by the lack of expected part of the face (the eyes).
%K autism
%K asperger£¿s syndrome
%K pervasive development disorder
%K eye movement.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0004-282X2006000400003&lng=en&nrm=iso&tlng=en