The project I will undertake involves a systematic review of the literature and an analysis of patient-level data on rates of organic brain syndrome in older New Zealand Maori. This category covers a range of disorders including Alzheimer's disease, Parkinson's disease and Vascular Dementia, as well secondary dementias (e.g. post stroke, trauma, alcoholism). It will target subjects over 40 years of age. It is important to note that specific analysis of dementia rates in Maori has not yet been performed. This information will influence planning for what is likely to be a significant public health issue in the next decade. This project will also introduce me to the field of descriptive epidemiology. I will gain a solid understanding of Maori health research and the clinical features of organic brain disorders.