TY - JFULL AU - Irene Winkler and Mark Jager and Vojkan Mihajlovic and Tsvetomira Tsoneva PY - 2010/10/ TI - Frontal EEG Asymmetry Based Classification of Emotional Valence using Common Spatial Patterns T2 - International Journal of Biomedical and Biological Engineering SP - 419 EP - 425 VL - 4 SN - 1307-6892 UR - https://publications.waset.org/pdf/5804 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 45, 2010 N2 - In this work we evaluate the possibility of predicting the emotional state of a person based on the EEG. We investigate the problem of classifying valence from EEG signals during the presentation of affective pictures, utilizing the "frontal EEG asymmetry" phenomenon. To distinguish positive and negative emotions, we applied the Common Spatial Patterns algorithm. In contrast to our expectations, the affective pictures did not reliably elicit changes in frontal asymmetry. The classifying task thereby becomes very hard as reflected by the poor classifier performance. We suspect that the masking of the source of the brain activity related to emotions, coming mostly from deeper structures in the brain, and the insufficient emotional engagement are among main reasons why it is difficult to predict the emotional state of a person. ER -