History
The Wada test is named after Canadian neurologist Juhn Atsushi Wada, of the University of British Columbia. He developed the test while he was a medical resident in Japan just after World War II, when he was receiving training in neurosurgery. Wada developed the technique of transient hemispheric anesthetization through carotid amytal injection to decrease the cognitive side effects associated with bilateral electroconvulsive therapy. He published the initial description of motor, sensory, language, and effects on the "conscious state" in 1949, in Japanese. During his fellowship at the Montreal Neurological Institute, he introduced the test to the English-speaking world.
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