Neuropsychological evaluation of a woman who was exposed to large concentrations of sodium fluoride included the MMPI, Rorschach, and Luria-Nebraska Neuropsychological Battery. The 1st general class of deficits observed involved those due to fluoride's disruption of normal nerve conduction, namely sensory and motor disturbances. A 2nd class reflected decrements in all cortical functions. However, some of these functions were overlearned and appeared to be relatively intact. Implications of these 2 classes of deficits are discussed. (5 ref)