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Table 4 Accuracies for five patients with tetraplegia (SCI1–SCI5)

From: Hybrid brain–computer interface for biomedical cyber-physical system application using wireless embedded EEG systems

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