Abstract
In high-stake cases (e.g., evaluating surgical candidacy for epilepsy) where neuropsychological evaluation is essential to care, it is important to have culturally and linguistically appropriate and accessible neuropsychological instruments and procedures for use with deaf individuals who use American Sign Language (ASL). Faced with these ethical and professional issues, clinicians may be unable to provide equitable services without consulting with other psychologists and collaborating with the patient and interpreter. This is a case report describing a 43-year-old male with bilateral sensorineural deafness and a lifelong history of drug-resistant temporal lobe epilepsy who presented as a candidate for a comprehensive neurological workup to determine surgical candidacy. He was bilingual (ASL and written English). We describe all aspects of the evaluation, including functional magnetic resonance imaging (fMRI) and Wada testing, using an ASL interpreter. Results from the neuropsychological evaluation were not clearly lateralizing, but suggested greater compromise to the non-dominant right hemisphere. fMRI and Wada test results revealed language and verbal memory functions were lateralized to the left hemisphere. The patient was deemed to be an adequate candidate for surgical resection of portions of the right hemisphere. Comprehensive assessment of neuropsychological functioning in deaf persons who use ASL is feasible. This case report illustrates the important considerations relevant to neuropsychologists providing culturally and linguistically informed assessments to deaf ASL users with epilepsy. Additional research in this area will support future efforts to develop effective and efficient models that could be implemented across different settings. Moreover, clinical guidance is warranted to guide professionals interested in promoting access to high quality neuropsychological services.
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