A hunt for the elusive neuropsychological impairment: Conversion disorder

Thus began the case of the elusive neuropsychological impairment. Approximately 2 years prior to his neuropsychological evaluation, Dean was jumped by a friend and hit several times in the head. He fell and reportedly hit the side of his head on a rock. According to his parents, there was evidence of blood on the rock. Dean's recollection was consistent with his parents' report. He could not recall what side of his head was hit. Upon falling, he got up, noticed blood on a rock and felt a lot of blood on his face. He was able to stumble home, and was subsequently taken to the local emergency room. Neuroimaging conducted at the hospital was unremarkable, and after several hours of observation Dean was discharged home. However, the next day, he reportedly lost his color vision and had significant fine motor difficulties to the point that he could not use utensils because his hand would shake so violently. In addition, Dean's arms would spontaneously swing uncontrollably, knocking over plates and bowls. Magnetic resonance imaging (MRI) of the brain conducted about a week after this altercation showed no evidence of traumatic injury or intracranial hemorrhage.