Table 3.

Experiment 3—correlation of raw signals between EncephaLog and ‘OPAL’ wearable sensors. Average cross-correlation coefficients (R) and normalized root mean squared error (NRMSE) between sensors signals (n = 30 trials).

	Acc SI(X)		Acc ML(Y)		Acc AP(Z)		Gyro SI(X)		Gyro ML(Y)		Gyro AP(Z)
	R	NRMSE	R	NRMSE	R	NRMSE	R	NRMSE	R	NRMSE	R	NRMSE
AVG	0.907	0.062	0.881	0.13	0.568	0.271	0.861	0.071	0.787	0.068	0.875	0.069
STD	0.14	0.049	0.121	0.082	0.097	0.058	0.225	0.07	0.243	0.046	0.208	0.069