Variation of the EEG-energy in a second language class

Copyright © 2018 by SCITEPRESS - Science and Technology Publications, Lda. All rights reserved 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.