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Arquivos de Neuro-Psiquiatria

Print version ISSN 0004-282X

Arq. Neuro-Psiquiatr. vol.47 no.2 São Paulo June 1989

http://dx.doi.org/10.1590/S0004-282X1989000200007 

Considerações sobre as relações neurais e etológicas na avaliação das alterações do controle motor: I. Substratos neurais da motricidade

 

Neural and ethological considerations on the evaluation of motor control dysfunction: I. Neural substrates of motricity

 

 

Norberto Garcia-Cairasco

Laboratório de Neurofisiologia e Neuroetologia Experimental, Disciplina de Neurofisiologia, Departamento de Fisiologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP)

 

 


RESUMO

O movimento é a expressão final da ativação harmônica de múltiplos sistemas cerebrais e musculares. Na natureza ele medeia respostas primárias de profundo valor adaptativo como a reprodução, predação e fuga, entre outras. A descrição dos movimentos como atos ou padrões motores correspondeu inicialmente à Etologia. Com o avanço nas Neurociências, hoje é proposta abordagem neuroetológica para a pesquisa nesta área. Quando se apresentam disfunções do movimento, praticamente os mesmos sistemas musculares e cerebrais são utilizados, só que de maneira aberrante, tanto no tempo quanto no espaço. Nesta revisão são ilustrados os principais sistemas envolvidos no controle motor normal, particularmente córtex, gânglios basais, cerebelo, tronco cerebral, medula, periferia muscular receptora e efetora.


SUMMARY

Movement is the final expression of the harmonius activation of multiple brain and muscle systems. In nature, movement measures primary responses of profound adaptative value such as reproduction, predation and flight, among others. The description of movements as motor acts or patterns was first the task of Ethology. With the recent advances in the Neurosciences, a neuroethological approach is proposed today for research in this area. When dysfunctions in motion occur, practically the same brain and muscle systems are utilized, but in an aberrant manner both in time and space. In the present review, we illustrate the major systems involved in normal motor control, in particular the cortex, basal ganglia, cerebellum, brain stem, medulla, and receptor and effector muscle periphery.


 

 

Texto completo disponível apenas em PDF.

Full text available only in PDF format.

 

 

Agradecimentos - A Silvia M. Nishida, João Pereira Leite e Maria Carolina Doretto, pela leitura crítica e comentários ao manuscrito. A Denise de Paula Hussar, pelo excelente trabalho datilográfico.

 

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Este trabalho é a primeira parte de estudo baseado em conferência apresentada na mesa redonda «Modelos Neurobiológicos para o Estudo do Comportamento», no V Encontro de Etologia (Jaboticabal. SP, Brasil, 1 a 3 de outubro de 1987).
Departamento de Fisiologia, Faculdade de Medicina de Ribeirão Preto, USP - 14049 Ribeirão Preto SP - Brasil

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