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Emotional processes in human subjects have been analyzed by means of spontaneous EEG or conventional EventRelated Potentials in a great number of studies.However, only few groups have analyzed emotional processes by means of Event-Related Oscillations.Our research group published results on emotioual processes by means of event related oscillations.Two different paradigms were used in these studies: 1) Paradigm with different face expressions 2) International Affective Picture System (IAPS) paradigm.Event-Related Potentials (ERPs) were recorded from 30 different scalp locations, and adaptive digital filtering was used for analysis in alpha (8-13 Hz) and beta (15-24 Hz) frequency windows.The results showed that: 1) Angry face expression stimuli increased left frontal and central beta responses in comparison to "happy" face expression.2) Alpha (8-13 Hz) responses upon angry face stimulation were significantly higher than upon presentation of happy faces at posterior locations (Güntekin and Basar 2007;Int.J.Psychophys.65,294-299).3) Occipital beta responses were significantly larger for women than for men during the presentation of face expressions (Güntekin and Basar 2007;Neurosci.Lett.424,94-99).4) Upon presentation of IAPS pictures, beta responses were significantly higher for unpleasant than for pleasant and for neutral pictures (Güntekin and Basar 2010;Neuroscience Letters, 483,173-178).In conclusion, these studies indicated that negative emotions trigger increased alpha and beta responses independently of stimulus types (facial expression or IAPS pictures).Accordingly, alpha and beta responses seem to have an important role in rapid and automatic identification of negative emotional pictures.