Table 2. Experimental Results.

Average classification accuracy, Standard deviation, Kappa Coefficient and Information Transfer Rate (ITR) in bits/trial and bits/min for all classification methods split by the training and test blocks experimental approach and the 10-fold cross-validation within block experimental training approach.

		separate training/test blocks		cross-validation within block
	Pupillometry	EEG	EEG+pupil	EEG	EEG+pupil
Kappa Coefficient	-0.47	-0.34	-0.57	-0.51	-0.67
ITR (bits/trial)	0.16	0.08	0.25	0.20	0.35
ITR(bits/min)	1.64	0.85	2.52	1.99	3.49