TABLE 3.

Correlation table of ease and pleasantness ratings with the eight accuracy outcomes variables.

Pearson’s p p-value	Multi-trial HbO	Multi-trial HbR	Single-trial HbO	Single-trial HbR	Single-trial SVM 20-20	Multi-trial SVM 20-20	Single-trial SVM 40-40	Multi-trial SVM40-40
Ease MD	0.288, 0.123	0.220, 0.190	0.101, 0.345	0.034, 0.447	0.010, 0.484	0.017, 0.945	0.508, 0.016*	0.383, 0.117
Ease SN	0.360, 0.071	0.147, 0.281	0.156, 0.268	0.041, 0.435	0.325, 0.094	0.364, 0.137	0.609, 0.004*	0.499, 0.035*
Pleasantness MD	0.320, 0.098	0.210, 0.202	0.127, 0.308	−0.051, 0.421	−0.116, 0.323	−0.208, 0.408	0.736, 0.000*	0.748, 0.000*
Pleasantness SN	0.295, 0.117	0.023, 0.464	0.023, 0.464	−0.163, 0.259	0.145, 0.283	0.076, 0.765	0.637, 0.002*	0.423, 0.080

Abbreviations: MD, mental drawing; SN, spatial navigation; HbO, oxygenated hemoglobin; HbR, deoxygenated hemoglobin; SVM, support vector machine; * = correlation is significant at 0.05 level (1-tailed).