. Author manuscript; available in PMC: 2012 Sep 30.

Published in final edited form as: J Neurosci Methods. 2011 Jul 27;201(1):196–203. doi: 10.1016/j.jneumeth.2011.06.027

Table 3.

Feature importance analysis (using the SVM classifier). NP: novelty preference, PD: pupil diameter, SO: saccade orientation, RF: re-fixations, FD: fixation duration.

Feature set	Accuracy	Sensitivity	Specificity	AUC
NP (baseline)	0.667	0.6	0.734	0.667
NP + PD	0.626	0.607	0.644	0.626
NP + SO	0.806 (+23%)	0.9 (+34%)	0.713 (−2%)	0.806 (+23%)
NP + SO + RF	0.863 (+29%)	0.989 (+65%)	0.737 (−)	0.863 (+29%)
NP + SO + RF + FD	0.869 (+32%)	0.967 (+61%)	0.772 (+5%)	0.869 (+30%)