Abstract
Standing is an active motor behavior (Gurfinkel and Shik, 1973). A smooth transition from and to standing is necessary to initiate and terminate locomotor movements. Such transitions occur via volitional control of posture and locomotion. During locomotion, an animal continuously controls speed and direction, is able to circumvent all obstacles and anticipate necessary conditions, and deals with unexpected perturbations by means of reflex adaptation (Grillner, 1981). Sherrington (1910) formulated this problem as “posture follows movement like a shadow”. Relatively little Information has been available concerning the interactions between posture and locomotion, however. In our studies in decerebrate cats (Mori et al., 1977; 1978; 1983) and in freely moving, intact cats (Mori et al., in press a, b), we can terminate and evoke locomotor movements by stimulating the dorsal and the ventral parts of the pons along the midline. The locomotor movements evoked in the intact cats were always accompanied by adequate postural adjustments and by behavioral changes. These experiments provide and opportunity to study the neuronal structures subserving the interactions of posture and locomotion and the initiation of locomotor movements.
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© 1986 The Wenner-Gren Center
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Mori, S., Ohta, Y. (1986). Interaction of Posture and Locomotion and Initiation of Locomotion in Decerebrate Cats and Freely Moving Intact Cats. In: Grillner, S., Stein, P.S.G., Stuart, D.G., Forssberg, H., Herman, R.M. (eds) Neurobiology of Vertebrate Locomotion. Wenner-Gren Center International Symposium Series. Palgrave Macmillan, London. https://doi.org/10.1007/978-1-349-09148-5_5
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DOI: https://doi.org/10.1007/978-1-349-09148-5_5
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