Many different types of neurological disease cause somewhat varying forms of dementia. Dementia is not exclusive to Alzheimer’s disease. The constellations of symptoms and their severity in the dementias associated with different conditions are not identical.

Click the figure twice to expand fully. This figure is a slight reformatting (adding color coding and brain images) of one appearing in earlier posts.

Here are two more variations of the same map. [Content identical. Formatting slightly changed.]