Cognitive performance in Rett syndrome girls: a pilot study using eyetracking technology.
J Intellect Disabil Res
; 50(Pt 9): 662-6, 2006 Sep.
Article
em En
| MEDLINE
| ID: mdl-16901293
BACKGROUND: Rett syndrome (RS) is a pervasive developmental disorder with cognitive and neuromotor impairments (including loss of handiness and loss of communicative skills). OBJECTIVE: To verify whether girls with RS use their gaze intentionally, by observing their performance in three cognitive tasks: (1) verbal instruction condition (look at picture X), (2) recognition and matching of pictures (look at the one that is the same), and (3) categorization of pictures (look at the one that is similar). METHOD: Seven girls diagnosed with RS according to DSM-IV criteria were studied. Eyegaze technology was used to record the girls' eye movements' responses to visual stimulation. RESULTS: The comparison of fixation time on the alternatives revealed a higher percentage (62.4%) of correct alternatives (chi(2) = 76.31; P = 0.000). Of the seven children assessed, only one did not present predominance of fixations on the correct alternatives in any one of the tasks. One did well in all tasks. Six responded correctly to all verbal instructions. CONCLUSION: The rate of correct answers suggests that there is measurable and intentional gaze in RS girls and it can be used as a path to explore their cognitive performance.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Síndrome de Rett
/
Cognição
/
Fixação Ocular
Limite:
Child
/
Child, preschool
/
Female
/
Humans
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
J Intellect Disabil Res
Assunto da revista:
TRANSTORNOS MENTAIS
Ano de publicação:
2006
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Reino Unido