Dr. Yamamoto presents an interesting extension of the forearm-rolling test that we studied. His preliminary results do suggest that ``index-finger rolling'' is more sensitive. However, it would also be important to study a group of normal control subjects because asymmetry might reflect cerebral dominance. Thus, we found that occasional normal individuals would show asymmetry of rapid tapping of the index finger against the interphalangeal joint of the thumb. With this reservation, we agree that index-finger rolling is likely to be more sensitive for detecting distal weakness whereas forearm rolling detects more proximal weakness; use of both techniques may thus provide the most sensitive method of screening for unilateral cerebral dysfunction. We thank Dr. Yamamoto for his novel observations.
- Copyright 1995 by Advanstar Communications Inc.
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