The modulation of delta responses in the interaction of brightness and emotion

Kurt P., Eroğlu K., Bayram Kuzgun T., GÜNTEKİN B.

International Journal of Psychophysiology, vol.112, pp.1-8, 2017 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 112
  • Publication Date: 2017
  • Doi Number: 10.1016/j.ijpsycho.2016.11.013
  • Journal Name: International Journal of Psychophysiology
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Social Sciences Citation Index (SSCI), Scopus
  • Page Numbers: pp.1-8
  • Keywords: Delta, Brightness, Luminance, Emotion, IAPS
  • Istanbul Medipol University Affiliated: Yes


The modulation of delta oscillations (0.5–3.5 Hz) by emotional stimuli is reported. Physical attributes such as color, brightness and spatial frequency of emotional visual stimuli have crucial effect on the perception of complex scene. Brightness is intimately related with emotional valence. Here we explored the effect of brightness on delta oscillatory responses upon presentation of pleasant, unpleasant and neutral pictures. We found that bright unpleasant pictures elicited lower amplitude of delta response than original unpleasant pictures. The electrophysiological finding of the study was in accordance with behavioral data. These results denoted the importance of delta responses on the examination of the association between perceptual and conceptual processes while in the question of brightness and emotion.