Aufgrund von Vorbereitungen auf eine neue Version von KOPS, können kommenden Montag und Dienstag keine Publikationen eingereicht werden. (Due to preparations for a new version of KOPS, no publications can be submitted next Monday and Tuesday.)
Type of Publication: | Journal article |
URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-214836 |
Author: | Bublatzky, Florian; Guerra, Pedro M.; Pastor, Maria Carmen; Schupp, Harald T.; Vila, Jaime |
Year of publication: | 2013 |
Published in: | PLoS ONE ; 8 (2013), 1. - e54003. - eISSN 1932-6203 |
Pubmed ID: | 23342060 |
DOI (citable link): | https://dx.doi.org/10.1371/journal.pone.0054003 |
Summary: |
The present study examined the effects of sustained anticipatory anxiety on the affective modulation of the eyeblink startle reflex. Towards this end, pleasant, neutral and unpleasant pictures were presented as a continuous stream during alternating threat-of-shock and safety periods, which were cued by colored picture frames. Orbicularis-EMG to auditory startle probes and electrodermal activity were recorded. Previous findings regarding affective picture valence and threat-of-shock modulation were replicated. Of main interest, anticipating aversive events and viewing affective pictures additively modulated defensive activation. Specifically, despite overall potentiated startle blink magnitude in threat-of-shock conditions, the startle reflex remained sensitive to hedonic picture valence. Finally, skin conductance level revealed sustained sympathetic activation throughout the entire experiment during threat- compared to safety-periods. Overall, defensive activation by physical threat appears to operate independently from reflex modulation by picture media. The present data confirms the importance of simultaneously manipulating phasic-fear and sustained-anxiety in studying both normal and abnormal anxiety.
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Subject (DDC): | 500 Natural Sciences |
Keywords: | Psychologie, startle reflex, threat-of-shock |
Link to License: | In Copyright |
Bibliography of Konstanz: | Yes |
BUBLATZKY, Florian, Pedro M. GUERRA, Maria Carmen PASTOR, Harald T. SCHUPP, Jaime VILA, 2013. Additive effects of threat-of-shock and picture valence on startle reflex modulation. In: PLoS ONE. 8(1), e54003. eISSN 1932-6203. Available under: doi: 10.1371/journal.pone.0054003
@article{Bublatzky2013Addit-21483, title={Additive effects of threat-of-shock and picture valence on startle reflex modulation}, year={2013}, doi={10.1371/journal.pone.0054003}, number={1}, volume={8}, journal={PLoS ONE}, author={Bublatzky, Florian and Guerra, Pedro M. and Pastor, Maria Carmen and Schupp, Harald T. and Vila, Jaime}, note={Article Number: e54003} }
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