Produção Nacional
Revisado por pares
Eye-hand preference dissociation in obsessive-compulsive disorder and dyslexia
2002; Thieme Medical Publishers (Germany); Volume: 60; Issue: 2A Linguagem: Inglês
10.1590/s0004-282x2002000200011
ISSN1678-4227
AutoresMarilena Occhini Siviero, Eliana Oliveira Rysovas, Yára Juliano, José Alberto Del Porto, Paulo Henrique Ferreira Bertolucci,
Tópico(s)Hemispheric Asymmetry in Neuroscience
ResumoDyslexia may be a development disturbance in which there are alterations in visual-spatial and visual-motor processing, while obsessive-compulsive disorder (OCD) is a psychiatric disease in which there are alterations in memory, executive function, and visual-spatial processing. Our hypothesis is that these disturbances may be, at least partially, the result of a crossed eye and hand preference. In the present study 16 controls, 20 OCD (DSM-IV criteria) and 13 dyslexic adults (Brazilian Dyslexia Association criteria) were included. All had a neurological examination, the Yale-Brown scale for obsessive-compulsive symptoms application and the Zazzó evaluation for laterality, abridged by Granjon. Results showed a right hand preference for 100% of controls, 84.6% of dyslexics, and 75% of OCD patients and a right eye preference for 73.3% of controls, 69.2% of dyslexics, and 35% of OCD patients. The left eye preference was significantly higher in OCD when compared with the two other groups (p = 0.01) and the left hand preference of OCD patients (25%) was also significant when compared to Brazilian population (4%) or British population (4.5%). It is possible that this crossed preference may be partially the reason for visual-spatial and constructive disturbances observed in OCD.
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