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Three adult Japanese monkeys (M. fuscata: body weights 4.5-8.5 kg) were trained to walk quadrupedally on a surface of a moving treadmill (walking length and width: 150 cm and 60 cm, treadmill speed: 0.4-1.7 m s-1. At any different constant treadmill velocity, the monkeys exhibited a diagonal pattern of locomotor movements. Side views of locomotor patterns(More)
In the reflexively standing acute decerebrate cat, we have previously shown that pulse train microstimulation of the hook bundle of Russel in the midline of the cerebellar white matter, through which crossed fastigiofugal fibers decussate, augments the postural tone of neck, trunk, fore-, and hindlimb extensor muscles. In the present study we examined the(More)
In a decerebrate cat (locomotor preparation), stimulation of a restricted region along the midline cerebellar white matter has been found to evoke generalized augmentation of postural muscle tone on a stationary surface (Asanome et al. 1998. Neurosci. Res. 30: 257-269) and "controlled" locomotion on the surface of a moving treadmill. Characteristics of(More)
In a reflexively standing acute decerebrate cats, the cerebellar white matter was systematically stimulated and the effects on the level of postural muscle tone were studied. A stimulating microelectrode was placed systematically at 0.1-0.5 mm increments from H + 2 to H - 2 at levels ranging from P7.0 to P8.0 rostrocaudally and mediolaterally from LR0 to(More)
To initiate and terminate bipedal and quadrupedal locomotor movements, a smooth transition to and from standing is necessary. For this, integration of postural and locomotor control systems is required. Recent studies in nonhuman primates and other quadrupedal animals such as cats have clearly shown that there exist significant analogies between the primate(More)
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