TY - GEN
T1 - Cognitive task discrimination using approximate entropy (ApEn) on EEG signals
AU - Flores Vega, Christian H.
AU - Noel, Julien
AU - Fernandez, Javier Ramirez
PY - 2013
Y1 - 2013
N2 - The work presented here aim to analyze approximate entropy (ApEn) of EEG signals and brain bands when subjects are performing various cognitive tasks. A hypothesis test was applied to evaluate the statistical differences between various cognitive tasks. ApEn was calculated onEEG signals, Alpha bands and Gamma band where the Wilcoxon signed-rank test was applied to analyze the statistical differences between each cognitive mental task. Delta, Theta, and Beta bands were analyzed as well but have not been reported because they do not have enough statistical difference. Results reported a statistical difference (p < 0.05) for the EEG signals in 4 out of 10 pairs of mental tasks; while in the Alpha band we have obtained a statistical difference in 7 out of 10 pairs of mental tasks. The results obtained showed that ApEn have higher values than EEG signals with the Alpha band. These results showed that brain signals of the Alpha band are less complex than EEG signals. Our approach reports the analysis of brain signals with the ApEn algorithm to be a useful tool to discriminate cognitive tasks.
AB - The work presented here aim to analyze approximate entropy (ApEn) of EEG signals and brain bands when subjects are performing various cognitive tasks. A hypothesis test was applied to evaluate the statistical differences between various cognitive tasks. ApEn was calculated onEEG signals, Alpha bands and Gamma band where the Wilcoxon signed-rank test was applied to analyze the statistical differences between each cognitive mental task. Delta, Theta, and Beta bands were analyzed as well but have not been reported because they do not have enough statistical difference. Results reported a statistical difference (p < 0.05) for the EEG signals in 4 out of 10 pairs of mental tasks; while in the Alpha band we have obtained a statistical difference in 7 out of 10 pairs of mental tasks. The results obtained showed that ApEn have higher values than EEG signals with the Alpha band. These results showed that brain signals of the Alpha band are less complex than EEG signals. Our approach reports the analysis of brain signals with the ApEn algorithm to be a useful tool to discriminate cognitive tasks.
KW - Approximate entropy
KW - Complexity
KW - EEG
KW - brain band
KW - cognitive task
UR - http://www.scopus.com/inward/record.url?scp=84876746089&partnerID=8YFLogxK
U2 - 10.1109/BRC.2013.6487521
DO - 10.1109/BRC.2013.6487521
M3 - Conference contribution
AN - SCOPUS:84876746089
SN - 9781467330244
T3 - ISSNIP Biosignals and Biorobotics Conference, BRC
BT - 2013 ISSNIP-IEEE Biosignals and Biorobotics Conference
T2 - 2013 4th ISSNIP-IEEE Biosignals and Biorobotics Conference: Biosignals and Robotics for Better and Safer Living, BRC 2013
Y2 - 18 February 2013 through 20 February 2013
ER -