1. Merriam-webster (n.d.). Emotion, in merriam-webster.com dictionary (2021). https://www.merriam-webster.com/dictionary/emotion
2. Al-Nafjan, A., Alharthi, K., Kurdi, H.: Lightweight building of an electroencephalogram-based emotion detection system. Brain Sci. 10(11), 781 (2020)
3. Al-Nafjan, A., Hosny, M., Al-Wabil, A., Al-Ohali, Y.: Classification of human emotions from electroencephalogram (EEG) signal using deep neural network. Int. J. Adv. Comput. Sci. Appl. 8(9), 419–425 (2017)
4. Alakus, T.B., Gonen, M., Turkoglu, I.: Database for an emotion recognition system based on EEG signals and various computer games-GAMEEMO. Biomed. Signal Process. Control 60, 101951 (2020)
5. Arvaneh, M., Tanaka, T.: Brain-computer interfaces and electroencephalogram: basics and practical issues. Signal Process. Mach. Learn. Brain-Mach. Interfaces (2018)