Influence of Contact Cues on the Perception of the Oculogravic Illusion

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Abstract
Measurements were made on five normal and five labyrinthine-defective men when they stood erect in a room while it was stationary and again when it was rotating. The procedure was designed to produce two situations for the normal men in which otolith and nonotolith information were synergistic and three others in which they were antagonistic. Perception of the visual horizontal during rotation was not systematically related to differences in head and body position nor were there significant differences between the normal and L-D men. The results show that nonotolith information predominates in this experimental situation.