Electromyographic Activity in the EEG in Alzheimer's Disease: Noise or Signal?

Table 4

Classification accuracy of EEG and EMG parameters by receiver operating curves (ROC).

	ROC area under the curve
	AD versus controls	MCI versus controls	AD versus MCI
Eyes closed
EEG theta relative power (%)	0.92	0.50	0.85
Frontal EMG (μV²)	0.78	0.83	0.52
Temporal EMG (μV²)	0.64	0.73	0.41
Eyes open
EEG alpha reactivity (%)	0.82	0.65	0.72
Frontal EMG (μV²)	0.86	0.61	0.71
Temporal EMG (μV²)	0.49	0.51	0.50
Memory activation
EEG alpha reactivity (%)	0.84	0.74	0.67
Frontal EMG (μV²)	0.74	0.73	0.47
Temporal EMG (μV²)	0.69	0.70	0.49

Areas under the curve of over 0.75 are printed in bold.