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Table 3. Electrode site used for evaluation
Number of features Features
1 F4
2 F4, AF4
3 F4, AF4, T7
4 F4, AF4, T7, Pz
5 F4, AF4, T7, Pz, FC6
32 All electrodes
The result of multiple regression analysis based on Table 3 is the following Figure
6.
Figure 6. Multiple correlation coefficients of EEGs and dips when changing the number of electrodes
4. Conclusion
4.1. Conclusion
We have described a method for reducing electrodes in emotional recognition of
depression using EEG based on the dataset DEAP. It was confirmed that the multiple
correlation coefficient of EEG data and depression increased as the number of electrodes
increased. The relationship between EEG data acquired from the electrode site selected
by the method in this research and the feeling of depression was clarified.
4.2. Future tasks
In this study, we divided the EEG into three frequency bands α, β, γ and then created a
feature. This way of dividing is customarily used in the analysis of
electroencephalograms, and it is not necessarily clear whether it is effective in emotion
recognition of depression. In the future, it is necessary to investigate how to analyze by
dividing frequency bands. The feature quantity is created based on the energy of each
frequency band, but after separating into each frequency band, it is necessary to newly
consider how to create the feature quantity. In this study, wavelet transformation was
used to separate EEG into three frequency bands, but we cannot deeply consider time
change of EEGs. It is necessary to prepare feature quantities in a form that does not
impair time information.
Y.Tsurugasaki etal. / IdentificationofEffectiveEEGElectrodes forDepressionSensing 159
Intelligent Environments 2019
Workshop Proceedings of the 15th International Conference on Intelligent Environments
- Titel
- Intelligent Environments 2019
- Untertitel
- Workshop Proceedings of the 15th International Conference on Intelligent Environments
- Autoren
- Andrés Muñoz
- Sofia Ouhbi
- Wolfgang Minker
- Loubna Echabbi
- Miguel Navarro-Cía
- Verlag
- IOS Press BV
- Datum
- 2019
- Sprache
- deutsch
- Lizenz
- CC BY-NC 4.0
- ISBN
- 978-1-61499-983-6
- Abmessungen
- 16.0 x 24.0 cm
- Seiten
- 416
- Kategorie
- Tagungsbände