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Kenneth D. Pool, MD; Terese Finitzo, PhD
Neuroscience Center Methodist Medical Center PO Box 655999 Dallas, TX 75265

Michael D. Devous, Sr, PhD; Frances J. Freeman, PhD
University of Texas Southwestern Medical Center 5323 Harry Hines Blvd Dallas, TX 75235-9035

Ben C. Watson, PhD
University of Texas at Dallas Callier Center 1966 Inwood Rd Dallas, TX 75235

Arch Neurol. 1992;49(4):347-348.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

In Reply.

—We appreciate the interest in our article¹ shown by Viswanath and his colleagues and welcome the opportunity to respond to their comments. Their first concern is based on comparison of findings for normal control subjects in our study¹ with findings reported by Devous et al.² Viswanath et al suggest that interhemispheric flow differences for the normal subjects in these studies are opposite for superior and middle temporal regions of interest (ROIs). We are confused by this statement. Within-group interhemispheric flow differences for normal control subjects were not reported by Pool et al.¹ However, examination of flow values summarized in Table 1 of that article shows that the pattern of interhemispheric difference for normal control subjects is, in fact, similar to the pattern of differences reported by Devous et al² in their Table 4.

Questions concerning the validity of the measure and differences in . . . [Full Text PDF of this Article]

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