LIVELY, M. W. Syncope and neurologic deficits in a track athlete: a case report. Med. Sci. Sports Exerc., Vol. 33, No. 3, 2000, pp. 345-347. Exercise-related syncope may result from various underlying medical conditions, with vasovagal reactions being the most common cause in young athletes. However, psychological causes also need to be considered in the differential diagnosis of syncope. This case report presents an athlete who suffered a syncopal event with residual motor and sensory deficits. The athlete was diagnosed with a conversion disorder and was able to return to full competition following psychotherapy and physical therapy.