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Arquivos de Neuro-Psiquiatria

Print version ISSN 0004-282X

Arq. Neuro-Psiquiatr. vol.52 no.2 São Paulo June 1994

http://dx.doi.org/10.1590/S0004-282X1994000200002 

Diferenças sexuais da atenção visual na epilepsia parcial criptogênica

 

Sexual differences of visual attention in cryptogenic partial epilepsy

 

 

Paulo Afonso Medeiros KandaI; Carlos José Reis de CamposII

ISetor de Investigação e Tratamento das Epilepsias (SITE), Disciplina de Neurologia, Escola Paulista de Medicina: Mestrando em Neurologia
IISetor de Investigação e Tratamento das Epilepsias (SITE), Disciplina de Neurologia, Escola Paulista de Medicina: Professor Adjunto Doutor, Chefe do SITE

 

 


RESUMO

Estudamos o rendimento em testes de atenção visual verbal e não-verbal de 14 homens e 18 mulheres controles normais e 33 pacientes com epilepsia parcial criptogênica. O grupo epiléptico foi constituído de 17 homens e 16 mulheres sem evidência de lesões à tomografia computadorizada de crânio. As descargas epilépticas interictais localizavam-se unilateralmente, no lobo temporal direito (8 homens, 8 mulheres) ou no esquerdo (9 homens, 8 mulheres). O desempenho dos homens epilépticos foi semelhante ao dos homens controles. Por outro lado, o rendimento das mulheres epilépticas foi pior que o das mulheres controles. Estes resultados parecem de acordo com a literatura que sugere que a atenção visual nas mulheres dependa da integridade funcional dos dois hemisférios cerebrais. Os homens processariam basicamente os estímulos visuais verbais no hemisfério cerebral esquerdo e os não-verbais no hemisfério cerebral direito. São necessários estudos posteriores para o melhor entendimento dessas diferenças sexuais da assimetria funcional hemisférica.

Palavras chave: diferenças sexuais, atenção visual, epilepsia parcial.


SUMMARY

The performance in visual verbal and non-verbal attentional tests was studied in 14 male and 18 female control subjects and 33 patients with cryptogenic partial epilepsy. The epileptic group was formed of 17 men and 16 women with no evidence of brain damage in CT scan examinations. Interictal epileptiform activity was observed only unilaterally, either in the right (8 male, 8 female) or left (9 male, 8 female) temporal lobes. The performance of epileptic men in visual tests was similar to that of normal men. On the other hand, the performance of epileptic women was worse than that of normal women. These results seem in accordance with the literature that suggests mat visual attention in women depends on the functional integrity of both cerebral hemispheres. In men, verbal visual attention is suggested to occur in the left cerebral hemisphere while non-verbal processes, predominantly in the right cerebral hemisphere. Further studies are necessary for the understanding of these sexual differences in cerebral hemispheric asymmetry.

Key words: sexual differences, visual attention, partial epilepsy.


 

 

Texto completo disponível apenas em PDF.

Full text available only in PDF format.

 

 

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Aceite: 28-julho-l993.

 

 

Dr. Carlos José Reis de Campos - Disciplina de Neurologia (SITE), Escola Paulista de Medicina - Rua Botucatu 740 - 04023-900 São Paulo SP - Brasil.