Juhn Atsushi Wada OC (March 28, 1924 – April 22, 2023) was a Japanese–Canadian neurologist known for research into epilepsy and human brain asymmetry, including his description of the Wada test for cerebral hemispheric dominance of language function.
[1] The Wada Test remains the gold standard for establishing cerebral dominance and is conducted worldwide prior to epilepsy surgery.
Wada was a professor in the Department of Psychiatry and Neurosciences at the UBC Faculty of Medicine.
He has edited 11 books and published over 300 papers on human brain asymmetry, the neurobiology of epilepsy, and kindling.
Wada established the first Seizure Investigation Unit in 1979 and the Epilepsy Surgical Program at UBC Hospital which serves patients across Western Canada.