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Saccadic tracking test--normal data and reliability.

A saccadic tracking test, which involves the scanning of a path guided by the direction of a sequence of arrows, was administered to 102 healthy control subjects. The data show a gender effect and a slight age and education effect. The internal consistency--estimated by Cronbach's alpha--was high, .94. The test promises to be a sensitive estimator of the capacity of a subject to explore a visual display, a skill necessary for a wide range of other test performances.