Diagnosis of Alzheimer’s Disease Severity with fMRI Images Using Robust Multitask Feature Extraction Method and Convolutional Neural Network (CNN)

Table 2

Scoring system of MMSE and the severity of Alzheimer’s disease.

Score	Severity	Psychometric analysis	Day-to-day functioning
25-30	Low	If there are clinical symptoms of cognitive disability, a formal cognition test can be useful	Clinically significant, however mild, deficits may be available. Only the most stressful everyday life tasks are expected to be affected
20-25	Mild	To further assess the trend and nature of deficits, a systematic examination can be useful	Meaningful effects. Any monitoring, assistance, and aid may be needed
10-20	Moderate	The formal assessment of whether there are clear health indications may be helpful	Obvious deficiency. 24-hour surveillance could be required
0-10	Severe	The patient will not be testable	Impairment labelled. 24-hour surveillance and support with ADL are likely to be required