From the VA and military records, a sample of Veterans 50-90 years old who served in the Vietnam War and meet the criteria of each of the study groups, PTSD, TBI, and comparable controls will be obtained. Those subjects between 60-80 years of age will be selected first. Those between 50-59 years of age, as well as those over 80 years may be recruited later in the project should recruitment numbers be too low in the 60-80 year age range.
This study is designed to examine the effects and safety of citalopram in patients with Alzheimer's disease experiencing agitation or emotional disturbance. This study is 9 weeks long. In order to participate in this study, you must be at least 45 years old, have Alzheimer's disease and experience agitation. Participants cannot have depression. Participants may stay on approved memory medications for Alzheimer's disease.