LOSS OF THE RIGHTING REFLEX IN MAN
- 1 January 1927
- journal article
- other
- Published by American Medical Association (AMA) in Archives of Neurology & Psychiatry
- Vol. 17 (1) , 12-17
- https://doi.org/10.1001/archneurpsyc.1927.02200310015002
Abstract
In studying paralysis agitans we have been more and more impressed with the fact that its essential features are disturbances of posture and defects in the performance of "associated and automatic" movements. We believe that these represent losses of the righting reflexes (Magnusde Kleijn) in man. We are further of the opinion that the poverty of emotional expression seen in this disease can also be correlated with impairment of higher righting reflexes. In analyzing paralysis agitans, it becomes evident that tremor may be absent, that paralysis of voluntary movement is wanting and that even rigidity may occasionally be missing. But in no case does one fail to observe the characteristic postural disturbance together with poverty or loss of automatic and associated movements. The essential feature of the postural disturbance is a reversion, more or less, to the quadripedal stance of the lower mammal, or as Kraus1states, "a dissolutionKeywords
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