Table 2. ANOVAs for the features of the EEG signals.

Outcomes of the ANOVA performed to assess the main effects of the temperature and surface and their interaction on the EEG signals at FCz. Partial eta squared (${\eta }_P^2$) are indicated for the effect sizes and the p- values smaller than the significance level of 0.05 are in bold.

	Temperature			Surface			Temperature*Surface
	F	Prob>F	${\eta }_p^2$	F	Prob>F	${\eta }_p^2$	F	Prob>F	${\eta }_p^2$
Ampl. at 0.2 Hz	23.690	0.000	0.629	10.905	0.005	0.438	0.894	0.360	0.060
Mean lat. (s)	25.926	0.000	0.649	0.042	0.841	0.003	0.271	0.611	0.019
AUC at 0.2 Hz (a.u.)	27.969	0.000	0.666	8.982	0.010	0.391	0.119	0.735	0.008