Table 4.

Convolutional neural network classification results of neuroimaging with spatial features for the N-back task.

Features	Accuracy (%)	Recall (%)	Precision (%)	F1-score (%)
HbO map at 5 s	77.78	70.00	58.86	63.15
HbO map at 10 s	91.67	90.00	86.00	87.50
HbO map at 15 s	93.06	90.00	86.43	87.83
HbO map at 20 s	84.72	80.00	72.43	75.33
HbO map at 25 s	76.39	70.00	58.43	62.83
HbO map at 30 s	77.78	70.00	58.43	62.83
HbO map at 35 s	77.78	70.00	58.43	62.83
HbO map at 40 s	91.67	90.00	86.00	87.50
HbO map at 45 s	77.78	70.00	58.43	62.83
HbO map at 50 s	93.06	90.00	86.43	87.83
HbO map at 55 s	84.72	80.00	72.43	75.33
HbO map at 60 s	65.28	55.66	41.11	46.34
HbO map at 65 s	81.94	78.00	71.00	73.36
Average	82.59	77.20	68.80	71.96