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

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ClinicalTrials.gov Identifier: NCT02848014
Recruitment Status : Completed
First Posted : July 28, 2016
Last Update Posted : April 6, 2017
Sponsor:
Information provided by (Responsible Party):
Winfried Rief, Philipps University Marburg Medical Center

Brief Summary:
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.

Condition or disease Intervention/treatment Phase
Healthy Participants Behavioral: Writing task Not Applicable

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 74 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Participant)
Primary Purpose: Basic Science
Official Title: The Effects of Interventions Aiming at Optimizing Expectations and Inducing Positive Emotions After an Acute Stressor on Subjective and Objective Stress Paramaters
Actual Study Start Date : July 2016
Actual Primary Completion Date : November 2016
Actual Study Completion Date : November 30, 2016

Arm Intervention/treatment
Experimental: Expectation
Participants are asked to think and write about ways how they can positively influence/control the stress during stress induction. They also can think of strategies they used in their past. The purpose of this arm is to improve participants' personal control expectations.
Behavioral: Writing task
Experimental: Emotion
Participants in this group are asked to write a gratitude-letter to a person they want to thank. The purpose of this arm is to foster positive emotions.
Behavioral: Writing task
Active Comparator: Control
Participants in this group are asked to do a neutral writing task. The task is to write a protocol of yesterday's to-dos.
Behavioral: Writing task



Primary Outcome Measures :
  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 Outcome Measures :
  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



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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

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

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02848014


Locations
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Germany
Department of Psychology, Philipps University Marburg
Marburg, Hessen, Germany, 35032
Sponsors and Collaborators
Philipps University Marburg Medical Center
Investigators
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Principal Investigator: Winfried Rief, Professor Philipps University Marburg Medical Center

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Responsible Party: Winfried Rief, Professor Dr., Philipps University Marburg Medical Center
ClinicalTrials.gov Identifier: NCT02848014     History of Changes
Other Study ID Numbers: 2016-08k
First Posted: July 28, 2016    Key Record Dates
Last Update Posted: April 6, 2017
Last Verified: June 2016