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August 1937

Réactions Labyrinthiques et Équilibre.

Arch NeurPsych. 1937;38(2):441-443. doi:10.1001/archneurpsyc.1937.02260200213019

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This valuable monograph consists of an unusually complete account of observations on animals and patients with various lesions of the labyrinthine system. In the introduction Rademaker points out that up to the present all work on equilibrium has been nonphysiologic and of such nature as to show that the labyrinths act as organs in control of lack of balance rather than as organs controlling a balanced position of the organism in space. He defines the latter mechanism as one which initiates stabilizing reactions, i. e., reactions through which the line of the center of gravity remains within or is returned to within the limits of the base that sustains the mass. Objective rather than subjective tests of the labyrinthine function are used exclusively.

Rademaker states that there are three groups of labyrinthine reactions: (1) those caused by rectilinear vertical movements; (2) those caused by rotary movements, and (3) those caused

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