Dungen, Tess van den (2024) To Suppress, To Remember or To Forget Intrusive Memories. Master thesis, Psychology.
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Abstract
This study is a replication of Wessel et al. (2023) about the Suppression Induced Forgetting Effect (SIF). The SIF effect suggests that actively suppressing memories, impairs later recall. With the Think/No-Think task we examined this. Participants learned cue-target word pairs and were asked to either think about (Think targets, presented in green) or to avoid thinking about the target (No-Think targets, presented in red). The SIF effect means that No-Think targets are recalled worse than baseline targets. Wessel et al. (2023) found the SIF effect in an in-lab setting, but they replicated Wiechert et al. (2023) who did not find the SIF effect in an online setting. This current study examined both settings, with the expectations of finding the SIF effect. Furthermore, this study examined the relationship between the SIF effect and intrusive memories, this relationship has been found in previous research and therefore it was expected that people who are better at suppressing memories report less intrusive memories. The participants were N = 90 first-year psychology students. The results showed a significant SIF effect in the in-lab setting, but not in the online setting. A positive control effect found within both settings, which means that the Think targets were recalled significantly better than baseline targets. No significant correlation was found between SIF and intrusive memories. These results could suggest that the SIF effect could be harder to find with an online setting, and that the relationship between SIF and intrusive memories could be difficult to find in certain samples. Keywords: Suppression-Induced Forgetting, SIF, Think No-Think Task, Intrusive Memories
| Item Type: | Thesis (Master) |
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| Supervisor name: | Wessel, J.P. |
| Degree programme: | Psychology |
| Differentiation route: | Clinical Forensic Psychology and Victimology (FP) [Master Psychology] |
| Date Deposited: | 24 Jul 2025 08:59 |
| Last Modified: | 24 Jul 2025 08:59 |
| URI: | http://gmwpublic.studenttheses.ub.rug.nl/id/eprint/5716 |
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