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Speech anxiety and rapid emotional reactions to angry and happy facial expressions
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology.
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology.
2007 (English)In: Scandinavian Journal of Psychology, ISSN 0036-5564, E-ISSN 1467-9450, Vol. 48, no 4, 321-328 p.Article in journal (Refereed) Published
Abstract [en]

The aim was to explore whether people high as opposed to low in speech anxiety react with a more pronounced differential facial response when exposed to angry and happy facial stimuli. High and low fear participants were selected based on their scores on a fear of public speaking questionnaire. All participants were exposed to pictures of angry and happy faces while facial electromyographic (EMG) activity from the Corrugator supercilii and the Zygomaticus major muscle regions was recorded. Skin conductance responses (SCR), heart rate (HR) and ratings were also collected. Participants high as opposed to low in speech anxiety displayed a larger differential corrugator responding, indicating a larger negative emotional reaction, between angry and happy faces. They also reacted with a larger differential zygomatic responding, indicating a larger positive emotional reaction, between happy and angry faces. Consistent with the facial reaction patterns, the high fear group rated angry faces as more unpleasant and as expressing more disgust, and further rated happy faces as more pleasant. There were no differences in SCR or HR responding between high and low speech anxiety groups. The present results support the hypothesis that people high in speech anxiety are disposed to show an exaggerated sensitivity and facial responsiveness to social stimuli.

Place, publisher, year, edition, pages
2007. Vol. 48, no 4, 321-328 p.
Keyword [en]
Autonomic responses, Facial EMG, Facial expressions, Facial reactions, Social fear, Speech anxiety
National Category
Psychology
Identifiers
URN: urn:nbn:se:uu:diva-96236DOI: 10.1111/j.1467-9450.2007.00586.xISI: 000248690000005PubMedID: 17669222OAI: oai:DiVA.org:uu-96236DiVA: diva2:170740
Available from: 2007-09-28 Created: 2007-09-28 Last updated: 2017-12-14Bibliographically approved
In thesis
1. Rapid Facial Reactions to Emotionally Relevant Stimuli
Open this publication in new window or tab >>Rapid Facial Reactions to Emotionally Relevant Stimuli
2007 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The present thesis investigated the relationship between rapid facial muscle reactions and emotionally relevant stimuli. In Study I, it was demonstrated that angry faces elicit increased Corrugator supercilii activity, whereas happy faces elicit increased Zygomaticus major activity, as early as within the first second after stimulus onset. In Study II, during the first second of exposure, pictures of snakes elicited more corrugator activity than pictures of flowers. However, this effect was apparent only for female participants. Study III showed that participants high as opposed to low in fear of snakes respond with increased corrugator activity, as well as increased autonomic activity, when exposed to pictures of snakes. In Study IV, participants high as opposed to low in speech anxiety responded with a larger difference in corrugator responding between angry and happy faces, and also with a larger difference in zygomatic responding between happy and angry faces, indicating that people high in speech anxiety have an exaggerated facial responsiveness to social stimuli. In summary, the present results show that the facial EMG technique is sensitive to detecting rapid emotional reactions to different emotionally relevant stimuli (human faces and snakes). Additionally, they demonstrate the existence of differences in rapid facial reactions among groups for which the emotional relevance of the stimuli can be considered to differ.

Place, publisher, year, edition, pages
Uppsala: Universitetsbiblioteket, 2007. 59 p.
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Social Sciences, ISSN 1652-9030 ; 30
Keyword
Emotion, facial EMG, facial reactions, facial expressions, rapid responses, automatic responses, phobia, social fear, speech anxiety
National Category
Psychology
Identifiers
urn:nbn:se:uu:diva-8219 (URN)978-91-554-6972-6 (ISBN)
Public defence
2007-10-19, Sal IX, Universitetshuset, Uppsala, 10:15
Opponent
Supervisors
Available from: 2007-09-28 Created: 2007-09-28Bibliographically approved

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