The number of dementia stages varies by tool. A widely used dementia staging tool is the Global Deterioration Scale (GDS).

The finding of neurologic signs in addition to cognitive impairments in the mild and moderate stages of dementia suggests a diagnosis other than Alzheimer's disease. For non-neurologists ...

People with dementia have distinct brain wave patterns. Researchers are investigating how EEG tests could identify people in the earliest stages of ... activity in the seven and eight Hertz ...