title: Stress reactivity to an electronic version of the Trier Social Stress Test: a pilot study.
abstract: Social stressors that rely on the inclusion of confederates (i.e., Trier Social Stress Test, TSST) are often used in clinical laboratory research paradigms to elicit a measurable stress response in participants. Although effective, the TSST is labor intensive and may introduce error variance as a function of confederate race, gender, and/or response characteristics. The present study aimed to develop and validate an electronic version of the TSST (e-TSST). The primary aim was to compare the e-TSST to an e-neutral control condition; the exploratory aim was to compare the magnitude of stress response elicited by the e-TSST to that elicited by the traditional TSST. Forty-three healthy adults were randomized to the e-TSST or e-neutral condition. Subjective (participant-rated distress) and objective [cortisol, heart rate (HR), and blood pressure] indices of stress were collected prior to, and multiple times following, the stressor. Using archival data collected from 19 healthy participants exposed to the traditional TSST in a prior study, stress reactivity was compared between the electronic and traditional versions of the TSST. The e-TSST elicited significant increases in all measures of stress reactivity compared to the e-neutral condition, with the exception of HR. Results showed that the magnitude of subjective distress, BP, and HR responses elicited by the e-TSST did not differ significantly from that elicited by the traditional TSST. The traditional TSST elicited significantly higher cortisol than the e-TSST. Although these findings provide initial support for the development of electronic versions of the TSST, further refinement of the e-TSST is warranted prior to broad adoption of this technology. A refined, reliable e-TSST could allow for increased utilization of the TSST by enhancing convenience, reducing labor costs, and limiting potential error variance introduced by human confederates.
authors.affiliation: Department of Psychiatry, Virginia Institute of Psychiatric and Behavioral Genetics, Virginia Commonwealth University , Richmond, VA, USA.
authors.forename: Sage E
authors.initials: SE
authors.lastname: Hawn
authors.affiliation: Department of Psychology, Northern Illinois University , DeKalb, IL, USA.
authors.forename: Lisa
authors.initials: L
authors.lastname: Paul
authors.affiliation: Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina , Charleston, SC, USA.
authors.forename: Suzanne
authors.initials: S
authors.lastname: Thomas
authors.affiliation: School of Social Work, Virginia Commonwealth University , Richmond, VA, USA.
authors.forename: Stephanie
authors.initials: S
authors.lastname: Miller
authors.affiliation: Department of Psychiatry, Virginia Institute of Psychiatric and Behavioral Genetics, Virginia Commonwealth University , Richmond, VA, USA.
authors.forename: Ananda B
authors.initials: AB
authors.lastname: Amstadter
keywords: TSST; Trier Social Stress Test; cortisol; stress reactivity; stressor; virtual reality