Related Experiment Video
Updated: May 23, 2026

Assessment of Cerebral Lateralization in Children using Functional Transcranial Doppler Ultrasound (fTCD)
Published on: September 27, 2010
Opposite cerebral dominance for reading and sign language
Sirisha T Komakula1, Robert B Burr, James N Lee
1University of Utah, Department of Neuroradiology, Salt Lake City, UT, USA.
Abstract:
We present a case of right hemispheric dominance for sign language but left hemispheric dominance for reading, in a left-handed deaf patient with epilepsy and left mesial temporal sclerosis. Atypical language laterality for ASL was determined by preoperative fMRI, and congruent with ASL modified WADA testing. We conclude that reading and sign language can have crossed dominance and preoperative fMRI evaluation of deaf patients should include both reading and sign language evaluations.
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