he clinical changes accompanying the evolution of Alzheimer's disease have been classified into two primary domains, cognitive, T which relates to declining intellectual and cortical functioning, and behavioral symptomatology, which includes paranoid and delusional ideation, hallucinations, and affective disturbances including depression, anxiety, and phobias. We report two patients with a delusion, not previously described in the literature, of pictures perceived as real. We discuss two known neuropsychiatric disorders, which are possibly pathogenetically related, as well as an immediate therapeutic implication for demented patients in long-term care settings. For patients suffering this delusion, there may be significant negative emotional effects if the common psychosocial modalities of reality orientation, reminiscence and life review, are used indiscriminately.CASE REPORTS Case 1. E.T., a 76 year old white female, was initially seen for evaluation of a 2-year history of progressive dementia with increased irritability, marked forgetfulness, and increasingly lax attitude toward keeping her home. These symptoms became more pronounced after the successive deaths of her husband in the Spring of 1987 and her only daughter in December, 1987. She was moved from Florida, where she had lived alone, to West Virginia upon the insistence of her son-in-law. She is presently still living alone with the help of concerned neighbors.Physical examination was normal. She was oriented to person and, with prompting, could approximate the time and place. Screening of motor and sensory functions revealed no gross deficits. Thyroid function tests, complete blood count, and chemistry profile were norFrom the Veterans Affairs Medical Center and the Hanshaw