My research mission is to employ behavioral psychometrics to understand how cerebral disease affects personality, cognition, and psychiatric stability. Two memory tests I developed, the Brief Visuospatial Memory Test Revised (BVMTR) and the Hopkins Verbal Learning Test Revised (HVLTR), are widely used in neuropsychology, especially in the areas of multiple sclerosis, head injury, and schizophrenia, and they are included in consensus panel test batteries for athlete concussions in the NHL and NFL. I work to develop new tests in order to understand the effects of cerebral injuries and disease.