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Completed

NCT Number: NCT02848014

The Effects of Interventions Aiming at Optimizing Expectations and Inducing Positive Emotions After an Acute Stressor

The purpose of the study is to determine whether a short psychological intervention aiming at optimizing expectations is able to foster positive emotions and whether an intervention inducing positive emotions is able improve participants' expectations. Furthermore, the investigators will examine whether both interventions are effective in buffering the stress response after an acute stressor in a healthy sample compared to a control condition.

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Key information

Conditions

Healthy Participants

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Department of Psychology, Philipps University Marburg

Marburg, Hesse, 35032, Germany

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • fluent in German language

Exclusion criteria

  • chronic disease
  • mental disease
  • the evening before the day of the experiment until end of the experiment (the next day): caffeine, alcohol, intensive physical exercise, chewing gum
  • acute hay fever
  • current intake of psychotropic medication

Treatment and study plan

Writing task

Behavioral

Primary outcomes

  1. Change in personal control expectation (Item of the Brief IPQ)

    Time frame: Pre-intervention (baseline; T0) vs. Post-intervention (25 minutes after baseline assessment; T1)

Secondary outcomes

  1. Change in emotions (PANAS)

    Time frame: Pre-intervention (baseline; T0) vs. Post-intervention (25 minutes after baseline assessment; T1)

  2. Subjective stress ratings

    Time frame: directly after completing the stress induction (approximately 50 minutes after baseline assessment; T2)

    Questionnaire items

  3. Change in Cortisol levels (saliva sample)

    Time frame: Pre-intervention (baseline; T0) vs.Post-intervention (25 minutes after baseline assessment; T1), directly (T2), 15 min (T3) and 30 min (T4) after stress induction

    directly (T2), 15 min (T3) and 30 min (T4) after stress induction = 50 min, 65 min and 80 min after baseline assessment

  4. Change in Alpha-Amylase levels (saliva sample)

    Time frame: Pre-intervention (baseline; T0) vs. Post-intervention (25 minutes after baseline assessment; T1), directly (T2), 15 min (T3) and 30 min (T4) after stress induction

    directly (T2), 15 min (T3) and 30 min (T4) after stress induction = 50 min, 65 min and 80 min after baseline assessment

Sponsors and collaborators

Lead sponsor

Philipps University Marburg

Other

Registry information

Official study title

The Effects of Interventions Aiming at Optimizing Expectations and Inducing Positive Emotions After an Acute Stressor on Subjective and Objective Stress Paramaters

Important dates

Study start
2016
Primary completion
2016
Study completion
2016
First posted
Jul 28, 2016
Registry last updated
Apr 6, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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