Table 1.

Range of nonlinear parameter variation for different mental states

Parameter	Normal resting state	With classical music	With rock music	With foot reflexologic stimulation	p-value
Correlation Dimension	5.0426 ± 0.286	4.921 ± 0.258	4.846 ± 0.284	4.828 ± 0.269	0.0956
Lyapunov Exponent	0.6185 ± 0.0107	0.6133 ± 0.0112	0.6072 ± 0.0122	0.5297 ± 0.0231	0.0701
Approximate Entropy	2.8214 ± 0.146	2.762 ± 0.157	2.6833 ± 0.181	2.615 ± 0.191	0.1346
Hurst Exponent	0.2887 ± 0.0568	0.3133 ± 0.0432	0.3372 ± 0.0516	0.3497 ± 0.0523	0.064