Table 3.

Classification performances of proposed methodology for mental rotation versus rest task across all feature combinations.

Feature combinations	S1			S2			S3			S4			S5
	Accuracy	Precision	Recall	Accuracy	Precision	Recall	Accuracy	Precision	Recall	Accuracy	Precision	Recall	Accuracy	Precision	Recall
Signal peak (SP) and signal skewness (SSk)	85.5	91.3	87.8	85.2	82.8	93.9	87.8	97.3	83.3	83.7	77.7	97.2	84.8	85.0	91.6
Signal mean (SM) and SSk	84.1	89.4	87.0	77.0	85.0	81.4	77.0	83.3	96.2	82.4	96.1	82.4	88.5	96.7	87.4
Signal slope (SS) and SSk	82.6	78.9	94.0	80.7	95.6	79.6	71.5	77.8	95.9	80.0	96.1	78.6	78.1	81.7	85.0
Signal kurtosis (SK) and SSk	77.0	76.7	87.3	80.0	91.7	80.9	65.4	85.6	87.2	77.8	87.2	80.9	77.0	72.2	91.5
Signal variance (SV) and SSk	85.6	90.6	88.1	72.2	68.9	86.7	62.9	68.3	88.3	78.5	88.3	81.1	75.2	70.6	90.1
SP and SK	82.6	96.7	80.9	72.2	62.2	94.1	68.4	93.3	70.6	76.7	70.6	92.7	80.4	85.0	85.5
SM and SK	80.0	90.6	81.5	73.0	67.8	89.1	76.0	95.0	70.6	74.4	70.6	88.8	72.6	74.4	82.7
SS and SK	83.3	92.8	83.9	69.3	65.6	84.9	74.0	83.3	78.3	75.2	78.3	83.4	81.5	79.4	91.7
SV and SK	83.3	92.7	84.6	53.0	37.2	82.7	60.9	83.9	78.9	74.4	78.9	82.1	64.1	50.6	91.9
SM and SP	75.6	91.1	76.6	72.2	62.2	94.1	70.5	72.2	51.1	63.7	51.1	90.2	80.7	84.4	86.4
SM and SV	80.0	91.7	80.9	66.7	50.6	98.9	70.5	61.1	64.4	71.1	64.4	89.2	79.6	82.2	86.5
SS and SP	81.5	76.7	94.5	75.9	61.1	96.7	68.4	66.7	58.3	67.8	58.3	89.7	87.4	90.6	90.6
SS and SV	79.6	73.9	94.3	73.0	74.4	83.2	65.4	44.4	60.0	67.4	60.0	87.1	83.3	93.9	83.3
SV and SP	74.1	75.0	84.4	69.6	62.8	88.3	67.4	57.8	52.2	65.2	52.2	92.2	79.6	75.0	93.1
SM and SS	75.6	66.7	95.2	80.4	77.2	92.1	68.4	71.7	54.4	66.7	54.4	92.5	80.7	82.2	88.1