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Laurence Schweitzer, MD; Eugene Becker, MD; Howard Welsh, MD
Baylor College of Medicine 1200 Moursund Ave Houston, TX 77030

Arch Gen Psychiatry. 1979;36(4):493-494.

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In Reply.—

Dr Levick and Dr Voneida question both the appropriateness of studying initial lateral eye movements (LEMs) in a face-to-face experimental design and the interpretation of our results. Although Gur et al¹ originally demonstrated that LEMs are influenced by the experimenters' location, more recently Gur and Gur² reexamined this issue in greater detail. Using an experimenter behind the subject as well as in a face-to-face paradigm, they found that subjects performed better on verbal questions when the initial LEM was to the right (ie, presumed greater left-hemisphere activity) and the experimenter behind the subject. Similarly, performance on spatial questions was slightly, but not significantly, more accurate with initial left LEMs.

When the experimenter was in front of the subject, performance on spatial questions was significantly better when the subject's initial eye movements were to the left. Thus, Gur and Gur² concluded that direction of gaze in normal . . . [Full Text PDF of this Article]

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