If suddenly pushed forward or backward while standing, many people with parkinsonism
brace rigidly without stepping, or with short shuffling steps which are unable to counteract …

Our experiments demonstrate that morphine and haloperidol produce two distinct and
contrasting behavioral states, which can be thought of as exaggerated, isolated, and …

This book reviews current understanding of normal muscle tone and how it differs in spastic,
thixotropic and hypotonic patients. The book contains practical advice on measuring the …

Publisher Summary This chapter concentrates on the regulation of food intake and
neurotransmitters involved in hyperphagia and aphagia by following three things …

Our view of the cataleptic akinesia induced by the disruption of catecholaminergic systems is
that it is a state in which the postural and motor subsystems organized to maintain static …

Neurological effects of neonatal depletion of dopamine (DA) were examined during
adulthood using a comprehensive battery of sensory and motor tests. On Postnatal Day 3 …

Wistar neonate rats assume a characteristic posture when being transported by the mother.
This carrying posture is normally elicited by the pressure given by the mother's teeth on the …

In the study of motivated behavior, the question often boils down to the locus and the nature
of control of an action. In the eighteenth century, for instance, people took for granted that …

Analyzed the early stages of recovery from lateral hypothalamic lesions in 30 adult cats. In
addition to aphagia and adipsia, neurological examination revealed deficits suggestive of …

A cataleptic animal clings in a vertical position, unmoving, for abnormally long periods by
supporting some of its weight on its hindlegs, grasping with the forepaws, flexing its …