Dementia is a general term for cognitive decline or memory loss caused by changes in the brain. Within the category of dementia, there are many different types with various causes and symptoms. Frontotemporal dementia (FTD) is one such type. As described by its name, FTD affects the brain’s frontal and temporal lobes, those near the front of the brain behind the forehead and the areas behind the ears. This type of dementia is also known as Pick’s disease, named for the doctor who first observed its symptoms.