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Table 3 Mean approximate entropy values for the subjects

From: Detecting number processing and mental calculation in patients with disorders of consciousness using a hybrid brain-computer interface system

Subject ApEn values (±SD)
Run 1 (number recognition) Run 2 (number comparison) Run 3 (addition and subtraction) Average
VS1 1.121 (±0.500) 0.876 (±0.464)   0.998 (±0.473)
VS3 0.599 (±0.112) 0.558 (±0.178) 0.642 (±0.129) 0.600 (±0.137)
VS5 0.467 (±0.392) 0.514 (±0.143) 0.703 (±0.320) 0.561 (±0.300)
VS6 0.271 (±0.090) 0.618 (±0.432) 0.456 (±0.312) 0.475 (±0.339)
MCS2 0.966 (±0.332) 0.833 (±0.309) 0.475 (±0.093) 0.758 (±0.328)
MCS3 1.073 (±0.228) 0.788 (±0.151) 0.598 (±0.246) 0.820 (±0.282)
Average 0.684 (±0.227)
VS2 1.152 (±0.319) 1.121 (±0.324) 1.140 (±0.327) 1.167 (±0.301)
VS4 1.021 (±0.363) 1.085 (±0.299)   1.053 (±0.315)
MCS1 0.865 (±0.207) 0.765 (±0.245) 0.870 (±0.278) 0.833 (±0.232)
EMCS1 0.800 (±0.154) 0.862 (±0.206)   0.831 (±0.175)
EMCS2 1.247 (±0.453) 1.625 (±0.143) 1.403 (±0.226) 1.425 (±0.324)
Average 1.074 (±0.251)
HC1 1.077 (±0.247) 0.904 (±0.462) 1.173 (±0.324) 1.051 (±0.361)
HC2 0.881 (±0.156) 1.065 (±0.117) 0.890 (±0.262) 0.974 (±0.153)
HC3 1.191 (±0.229) 1.028 (±0.246) 0.911 (±0.212) 1.043 (±0.251)
HC4 1.022 (±0.280) 1.035 (±0.209) 0.951 (±0.300) 0.999 (±0.262)
Average 1.011 (±0.106)