Authors:
Freddy L. Bueno-Palomeque
1
;
Efrén L. Lema-Condo
1
;
Susana E. Castro-Villalobos
2
;
Luis J. Serpa-Andrade
1
and
Esteban F. Ordoñez-Morales
1
Affiliations:
1
Grupo de Investigación en Ingeniería Biomédica GIIB-UPS, Universidad Politécnica Salesiana, Cuenca and Ecuador
;
2
Grupo de Investigación en Ingeniería Biomédica GIIB-UPS, Universidad Politécnica Salesiana, Cuenca, Ecuador, Departamento de Idiomas, Universidad Politécnica Salesiana, Cuenca and Ecuador
Keyword(s):
Electroencephalographic Signals, Active Attention, Correlation, Signal Energy, Alpha Waves, Beta Waves.
Related
Ontology
Subjects/Areas/Topics:
EMG Signal Processing and Applications
;
Health Engineering and Technology Applications
;
NeuroSensing and Diagnosis
;
Neurotechnology, Electronics and Informatics
Abstract:
The attention, concentration, and anxiety of the students are fundamental in the learning process of a second language. This study proposes to register EEG signals during a second language class to quantify the energy level of the EEG signal and associate it with the attention level along the time. Data was registered while attending to a level 1 English language through 12 minutes. The signals were filtered using a wavelet transform Symlet 6 to analyze two frequency bands: Alpha (8-16 Hz) and Beta (16-32 Hz). The results revealed an increment in the energy on the electrodes AF3, AF4, F3, and F4 in the Alpha and Beta bands between 37.25 and 43.41% of the students, and a decrement between 25.49 and 43.13%. Finally, when analyzing the electrodes T7 y T8, there were an increment of the energy in 35.30% of the students and decrements between 39.22 and 47.60% of theirs.