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September 25, 1926

Die Bedeutung der roten Kerne und des übrigen Mittelhirns für Muskeltonus, Körperstellung und Labyrinthreflexe.

JAMA. 1926;87(13):1058. doi:10.1001/jama.1926.02680130072040

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This monograph appeared first in May, 1924, in the Dutch language. Fortunately, it is here translanted into German by Dr. E. LeBlanc. The volume contains records of investigations, making it a supplement to the work of Magnus on Körperstellung. Its chief aim is to record the differences between the reaction of a thalamus animal and the decerebrate animal. The thalamus animal has a normal distribution of tone; it can be stimulated to walk, run and jump. If overthrown it can right itself, and the position of the head is modified in accordance with the position of the body. It preserves all the "righting reflexes" of Magnus. In the decerebrate animal there is an abnormal hypertonus; the head becomes fixed in a position of extension, and the animal cannot right itself. Rademaker describes experiments in which transections at various levels of the thalamencephalon and of the mesencephalon in cats and rabbits

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