- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT01007682
Intrusive Reexperiencing: The Role of Working Memory Capacity and Thought Suppression
This study aims at identifying risk factors for the development of intrusive reexperiencing symptoms. In particular, the investigators examine the influence of working memory capacity and thought suppression on the occurrence of unpleasant memories of a negative experience.
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)
Studieöversikt
Status
Betingelser
Intervention / Behandling
Studietyp
Inskrivning (Faktisk)
Fas
- Inte tillämpbar
Kontakter och platser
Studieorter
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Massachusetts
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Cambridge, Massachusetts, Förenta staterna, 02138-2044
- Harvard University, Department of Psychology
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Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
Inclusion Criteria:
- Older than 17 years
Exclusion Criteria:
- Insufficient knowledge of the German language, for the distressing movie arm of the study: Elevated levels of depression or posttraumatic stress symptoms prior to viewing of the distressing movie
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Grundläggande vetenskap
- Tilldelning: Randomiserad
- Interventionsmodell: Faktoriell uppgift
- Maskning: Enda
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
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Inget ingripande: Screening for working memory capacity
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Experimentell: 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.
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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.
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Vad mäter studien?
Primära resultatmått
Resultatmått |
Tidsram |
|---|---|
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Number of intrusive memories
Tidsram: during one week after viewing the distressing movie
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during one week after viewing the distressing movie
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Samarbetspartners och utredare
Utredare
- Huvudutredare: Monique C Pfaltz, PhD, Harvard University, Department of Pysychology
- Studiestol: Jürgen Margraf, Prof, University of Basel, Department for Clinical Psychology and Psychotherapy
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Andra studie-ID-nummer
- 192/09
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