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Randomized Trial on the Effects of a Group EMDR Intervention on Narrative Complexity and Specificity of Autobiographical Memories: A Path Analytic and Supervised Machine-Learning Study

1
Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
2
Department of Surgical, Medical and Molecular Pathology and of Critical Care Medicine, University of Pisa, 56126 Pisa, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Paul B. Tchounwou
Int. J. Environ. Res. Public Health 2022, 19(13), 7684; https://doi.org/10.3390/ijerph19137684
Received: 25 May 2022 / Revised: 19 June 2022 / Accepted: 21 June 2022 / Published: 23 June 2022
Narratives of autobiographical memories may be impaired by adverse childhood experiences, generating narrative fragmentation and increased levels of perceived distress. Eye movement desensitization and reprocessing (EMDR) proved to be an effective treatment to overcome traumatic experiences and to promote coherent autobiographical narratives. However, the specific mechanisms by which EMDR promotes narrative coherence remains largely unknown. We conducted a randomized controlled pilot trial (ClinicalTrials.gov Identifier NCT05319002) in a non-clinical sample of 27 children recruited in a primary school. Participants were randomly assigned to the experimental and control groups. The experimental group underwent a three-week group EMDR intervention. Subjective unit of distress (SUD), validity of cognition (VoC), classification of autobiographical memories, narrative complexity and specificity were assessed before and after the group EMDR intervention. The group EMDR intervention was able to improve SUD and VoC scales, narrative complexity and specificity, and promoted the classification of autobiographical memories as relational. The path analysis showed that SUD was able to predict VoC and narrative specificity, which, in turn, was able to predict both narrative complexity and the classification of autobiographical memories as relational. Machine-learning analysis showed that random tree classifier outperformed all other models by achieving a 93.33% accuracy. Clinical implications are discussed. View Full-Text
Keywords: EMDR; childhood; psychological trauma; autobiographical memory; distress; cognition; narrative complexity; narrative specificity EMDR; childhood; psychological trauma; autobiographical memory; distress; cognition; narrative complexity; narrative specificity
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MDPI and ACS Style

Poli, A.; Gemignani, A.; Miccoli, M. Randomized Trial on the Effects of a Group EMDR Intervention on Narrative Complexity and Specificity of Autobiographical Memories: A Path Analytic and Supervised Machine-Learning Study. Int. J. Environ. Res. Public Health 2022, 19, 7684. https://doi.org/10.3390/ijerph19137684

AMA Style

Poli A, Gemignani A, Miccoli M. Randomized Trial on the Effects of a Group EMDR Intervention on Narrative Complexity and Specificity of Autobiographical Memories: A Path Analytic and Supervised Machine-Learning Study. International Journal of Environmental Research and Public Health. 2022; 19(13):7684. https://doi.org/10.3390/ijerph19137684

Chicago/Turabian Style

Poli, Andrea, Angelo Gemignani, and Mario Miccoli. 2022. "Randomized Trial on the Effects of a Group EMDR Intervention on Narrative Complexity and Specificity of Autobiographical Memories: A Path Analytic and Supervised Machine-Learning Study" International Journal of Environmental Research and Public Health 19, no. 13: 7684. https://doi.org/10.3390/ijerph19137684

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