From swimming to walking with a salamander robot driven by a spinal cord model.
Science
; 315(5817): 1416-20, 2007 Mar 09.
Article
em En
| MEDLINE
| ID: mdl-17347441
ABSTRACT
The transition from aquatic to terrestrial locomotion was a key development in vertebrate evolution. We present a spinal cord model and its implementation in an amphibious salamander robot that demonstrates how a primitive neural circuit for swimming can be extended by phylogenetically more recent limb oscillatory centers to explain the ability of salamanders to switch between swimming and walking. The model suggests neural mechanisms for modulation of velocity, direction, and type of gait that are relevant for all tetrapods. It predicts that limb oscillatory centers have lower intrinsic frequencies than body oscillatory centers, and we present biological data supporting this.
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Base de dados:
MEDLINE
Assunto principal:
Pleurodeles
/
Medula Espinal
/
Natação
/
Robótica
/
Caminhada
/
Rede Nervosa
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Revista:
Science
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Suíça