Intrusive Reexperiencing: The Role of Working Memory Capacity and Thought Suppression
NCT ID: NCT01007682
Last Updated: 2012-03-08
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
200 participants
INTERVENTIONAL
2009-09-30
2011-10-31
Brief Summary
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Hypothesis: People with high working memory capacities (HWMC) are able to successfully suppress memories of an unpleasant experience (presentation of a distressing movie). In contrast, in people with low working memory capacities (LWMC), attempts to suppress memories of an unpleasant experience inadvertently lead to an increase of these memories.
Study phase one: Assessment of working memory capacity in 200 healthy participants by means of a computerized task. Selection of 50 participants with HWMC and of 50 participants with LWMC who participate in study phase two.
Study phase two: Presentation of a distressing movie and subsequent assessment of memories of the movie during several days in the daily life of participants. Comparison of 4 groups regarding the frequency of instructions in daily life:(group 1: HWMC participants who are instructed to suppress thoughts of the movie, group 2: LWMC participants who are instructed to suppress thoughts of the movie, group 3: HWMC participants who are instructed to allow the occurence of thoughts of the movie, group 4: LWMC participants who are instructed to allow the occurence of thoughts of the movie)
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
FACTORIAL
BASIC_SCIENCE
SINGLE
Study Groups
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Screening for working memory capacity
No interventions assigned to this group
Distressing movie
A distressing movie is presented to two groups (one group with high and one group with low working memory capacity). For each of the two groups, half of the participants are instructed to suppress thoughts of the movies after viewing it, while the remaining participants are instructed to allow the occurrence of memories of the movie.
Show distressing movie and tell half of the two study groups to suppress memories of the movie
A distressing movie is presented to two groups (one group with high and one group with low working memory capacity). For each of the two groups, half of the participants are instructed to suppress thoughts of the movies after viewing it, while the remaining participants are instructed to allow the occurrence of memories of the movie.
Interventions
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Show distressing movie and tell half of the two study groups to suppress memories of the movie
A distressing movie is presented to two groups (one group with high and one group with low working memory capacity). For each of the two groups, half of the participants are instructed to suppress thoughts of the movies after viewing it, while the remaining participants are instructed to allow the occurrence of memories of the movie.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
18 Years
ALL
Yes
Sponsors
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University Hospital, Basel, Switzerland
OTHER
Responsible Party
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Principal Investigators
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Monique C Pfaltz, PhD
Role: PRINCIPAL_INVESTIGATOR
Harvard University, Department of Pysychology
Jürgen Margraf, Prof
Role: STUDY_CHAIR
University of Basel, Department for Clinical Psychology and Psychotherapy
Locations
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Harvard University, Department of Psychology
Cambridge, Massachusetts, United States
Countries
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Other Identifiers
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192/09
Identifier Type: -
Identifier Source: org_study_id
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