Dr. Staal conducts multi sensory environment clinical trials based on the integration of the theory and practice of behaviorism and multi sensory environments. His inpatient research focuses has been the use of multi sensory environments with geriatrics and the nursing staff who provide care for the people with dementia and late life depression and anxiety. Dr. Staal has published articles in peer reviewed journals, lectured in the United States, The Netherlands, England and Canada and he has appeared on numerous television and radio shows and in the Science Times of the New York Times. He writes, teaches behavioral psychotherapy and is in private practice in New York.