Three groups of Ss—brain-damaged, hospitalized psychiatric patients, and normals—were administered the auditory-midline and visual-vertical tests with body orientation of right-tilt, left-tilt, and upright. Performance on the two tasks was not correlated, a finding that argues against the hypothesis of a common underlying mechanism. Only the normals showed the visual “E-effect” (overconstancy in setting the line to true vertical) when the body was placed on a tilt. “Starting position effects” on both tasks were most pronounced for the braindamaged Ss and least for normals.
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