Table 4.

Accuracies for five patients with tetraplegia (SCI1–SCI5)

Task combination	Accuracy (%) of 5 patients (SCI1-SCI5)
	SCI1	SCI2	SCI3	SCI4	SCI5	Mean
Mental tasks
Arithmetic and rotation	84	76	87	85	87	84
Arithmetic and letter	88	77	84	77	88	83
Arithmetic and count	89	78	94	94	85	88
Rotation and letter	82	77	76	79	75	78
Rotation and count	89	73	82	82	78	81
Letter and count	80	80	81	91	77	82
Arithmetic, rotation and letter	74	64	67	68	70	68
Arithmetic, rotation and count	79	61	74	76	69	72
Arithmetic, letter and count	75	63	76	75	71	72
Rotation, letter and count	72	64	66	72	62	67
Arithmetic, rotation, letter and count	67	53	63	64	60	61
SSVEP tasks
Baseline and 6 Hz	80	88	80	76	89	83
Baseline and 13 Hz	90	84	83	83	84	85
Baseline and 16 Hz	89	82.	78	77	90	83
6, 13 and 16 Hz	78	66	70	70	71	71
Eyes closed tasks
Baseline and eyes closed	96	95	87	88	98	93