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Event-related beta oscillations are affected by emotional eliciting stimuli.
Neurosci Lett. 2010 Oct 15; 483(3):173-8.NL

Abstract

According to previous results, negative emotional facial expressions elicit oscillatory beta responses. The present study analyzes event-related beta oscillations upon presentation of International Affective Picture System (IAPS) and aims to show whether behavior of beta in response to negative IAPS pictures also have similar dynamics. IAPS pictures (unpleasant, pleasant, and neutral) were presented as a block and random passive viewing to 14 healthy subjects (8 male). Only with pictures with similar luminance level were selected as stimuli. Event-Related Potentials (ERPs) were recorded from 30 different scalp locations, and adaptive digital filtering was used for analysis in different frequency windows. The maximum peak-to-peak amplitudes were measured for each subject's averaged beta responses (15-30Hz) in the 0 and 300ms time window. Beta responses were significantly higher for unpleasant pictures than for pleasant and neutral pictures (average 50%). Beta responses were significantly higher for unpleasant than for pleasant pictures over frontal, central and parietal electrode sides (p<0.05). Furthermore, beta responses were significantly higher for unpleasant than for neutral pictures over parietal and occipital electrodes (p<0.04). In addition, the pleasant pictures elicited higher beta responses than neutral pictures over occipital electrode sites (p<0.04). The results of the present study indicate that negative emotions are related to increased beta responses in humans, independent of stimulus types (facial expression or IAPS pictures). Accordingly, beta responses to negative emotions are possibly a common phenomenon. The standardization of luminance in pictures may reduce divergences between results from different laboratories.

Authors+Show Affiliations

Istanbul Kultur University, Brain Dynamics, Cognition and Complex Systems Research Center, Istanbul, Turkey.No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

20692324

Citation

Güntekin, Bahar, and Erol Başar. "Event-related Beta Oscillations Are Affected By Emotional Eliciting Stimuli." Neuroscience Letters, vol. 483, no. 3, 2010, pp. 173-8.
Güntekin B, Başar E. Event-related beta oscillations are affected by emotional eliciting stimuli. Neurosci Lett. 2010;483(3):173-8.
Güntekin, B., & Başar, E. (2010). Event-related beta oscillations are affected by emotional eliciting stimuli. Neuroscience Letters, 483(3), 173-8. https://doi.org/10.1016/j.neulet.2010.08.002
Güntekin B, Başar E. Event-related Beta Oscillations Are Affected By Emotional Eliciting Stimuli. Neurosci Lett. 2010 Oct 15;483(3):173-8. PubMed PMID: 20692324.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Event-related beta oscillations are affected by emotional eliciting stimuli. AU - Güntekin,Bahar, AU - Başar,Erol, Y1 - 2010/08/06/ PY - 2010/06/21/received PY - 2010/08/02/revised PY - 2010/08/02/accepted PY - 2010/8/10/entrez PY - 2010/8/10/pubmed PY - 2010/12/24/medline SP - 173 EP - 8 JF - Neuroscience letters JO - Neurosci Lett VL - 483 IS - 3 N2 - According to previous results, negative emotional facial expressions elicit oscillatory beta responses. The present study analyzes event-related beta oscillations upon presentation of International Affective Picture System (IAPS) and aims to show whether behavior of beta in response to negative IAPS pictures also have similar dynamics. IAPS pictures (unpleasant, pleasant, and neutral) were presented as a block and random passive viewing to 14 healthy subjects (8 male). Only with pictures with similar luminance level were selected as stimuli. Event-Related Potentials (ERPs) were recorded from 30 different scalp locations, and adaptive digital filtering was used for analysis in different frequency windows. The maximum peak-to-peak amplitudes were measured for each subject's averaged beta responses (15-30Hz) in the 0 and 300ms time window. Beta responses were significantly higher for unpleasant pictures than for pleasant and neutral pictures (average 50%). Beta responses were significantly higher for unpleasant than for pleasant pictures over frontal, central and parietal electrode sides (p<0.05). Furthermore, beta responses were significantly higher for unpleasant than for neutral pictures over parietal and occipital electrodes (p<0.04). In addition, the pleasant pictures elicited higher beta responses than neutral pictures over occipital electrode sites (p<0.04). The results of the present study indicate that negative emotions are related to increased beta responses in humans, independent of stimulus types (facial expression or IAPS pictures). Accordingly, beta responses to negative emotions are possibly a common phenomenon. The standardization of luminance in pictures may reduce divergences between results from different laboratories. SN - 1872-7972 UR - https://www.unboundmedicine.com/medline/citation/20692324/Event_related_beta_oscillations_are_affected_by_emotional_eliciting_stimuli_ DB - PRIME DP - Unbound Medicine ER -