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Prefrontal-posterior coupling while observing the suffering of other people, and the development of intrusive memories.

Reiser EM, Weiss EM, Schulter G, Holmes EA, Fink A, Papousek I - Psychophysiology (2014)

Bottom Line: The factors contributing to why some people develop intrusive memories and others do not are still poorly understood.Individuals showing greater decreases of functional coupling between prefrontal and posterior cortices (greater decreases of EEG beta coherences) reported more intrusive memories of the witnessed events.The findings illuminate brain mechanisms involved in the encoding of information in ways that make intrusive memories more likely.

View Article: PubMed Central - PubMed

Affiliation: Department of Psychology, Biological Psychology Unit, University of Graz, Graz, Austria.

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Related in: MedlinePlus

Descriptive illustration of correlations (sr > .20) between coherence changes of single electrode pairs and the occurrence of film-related intrusive memories over the week. Coherence changes relative to reference recording preceding the film (standardized residuals). Dotted lines denote negative correlations (linking decreased coherence during viewing the distressing film with higher scores on the IES-R intrusion scale), solid lines denote positive correlations (linking increased coherence during viewing the film with higher scores on the IES-R intrusion scale). Light shaded and dark shaded dots represent the electrodes used for the prefrontal and posterior clusters, respectively (see section EEG Recording and Quantification). In line with the statistical analysis of the aggregated prefrontal-posterior coherences, the illustration shows semipartial correlations (sr) controlling for depression. The illustration is for descriptive purposes only.
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fig05: Descriptive illustration of correlations (sr > .20) between coherence changes of single electrode pairs and the occurrence of film-related intrusive memories over the week. Coherence changes relative to reference recording preceding the film (standardized residuals). Dotted lines denote negative correlations (linking decreased coherence during viewing the distressing film with higher scores on the IES-R intrusion scale), solid lines denote positive correlations (linking increased coherence during viewing the film with higher scores on the IES-R intrusion scale). Light shaded and dark shaded dots represent the electrodes used for the prefrontal and posterior clusters, respectively (see section EEG Recording and Quantification). In line with the statistical analysis of the aggregated prefrontal-posterior coherences, the illustration shows semipartial correlations (sr) controlling for depression. The illustration is for descriptive purposes only.

Mentions: For descriptive purposes, a topographic illustration of the highest correlations (sr > .20) between coherence changes of single electrode pairs and film-related intrusive memories over the week (IES-R intrusion scale) is given in Figure 5. As the present study follows a strictly hypothesis-driven approach, statistically evaluating theoretically motivated relations of only a few specific (aggregated) coherence data (Δcoh) to the variables referring to intrusive memories, no inferences are to be drawn from this purely descriptive illustration.


Prefrontal-posterior coupling while observing the suffering of other people, and the development of intrusive memories.

Reiser EM, Weiss EM, Schulter G, Holmes EA, Fink A, Papousek I - Psychophysiology (2014)

Descriptive illustration of correlations (sr > .20) between coherence changes of single electrode pairs and the occurrence of film-related intrusive memories over the week. Coherence changes relative to reference recording preceding the film (standardized residuals). Dotted lines denote negative correlations (linking decreased coherence during viewing the distressing film with higher scores on the IES-R intrusion scale), solid lines denote positive correlations (linking increased coherence during viewing the film with higher scores on the IES-R intrusion scale). Light shaded and dark shaded dots represent the electrodes used for the prefrontal and posterior clusters, respectively (see section EEG Recording and Quantification). In line with the statistical analysis of the aggregated prefrontal-posterior coherences, the illustration shows semipartial correlations (sr) controlling for depression. The illustration is for descriptive purposes only.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4150534&req=5

fig05: Descriptive illustration of correlations (sr > .20) between coherence changes of single electrode pairs and the occurrence of film-related intrusive memories over the week. Coherence changes relative to reference recording preceding the film (standardized residuals). Dotted lines denote negative correlations (linking decreased coherence during viewing the distressing film with higher scores on the IES-R intrusion scale), solid lines denote positive correlations (linking increased coherence during viewing the film with higher scores on the IES-R intrusion scale). Light shaded and dark shaded dots represent the electrodes used for the prefrontal and posterior clusters, respectively (see section EEG Recording and Quantification). In line with the statistical analysis of the aggregated prefrontal-posterior coherences, the illustration shows semipartial correlations (sr) controlling for depression. The illustration is for descriptive purposes only.
Mentions: For descriptive purposes, a topographic illustration of the highest correlations (sr > .20) between coherence changes of single electrode pairs and film-related intrusive memories over the week (IES-R intrusion scale) is given in Figure 5. As the present study follows a strictly hypothesis-driven approach, statistically evaluating theoretically motivated relations of only a few specific (aggregated) coherence data (Δcoh) to the variables referring to intrusive memories, no inferences are to be drawn from this purely descriptive illustration.

Bottom Line: The factors contributing to why some people develop intrusive memories and others do not are still poorly understood.Individuals showing greater decreases of functional coupling between prefrontal and posterior cortices (greater decreases of EEG beta coherences) reported more intrusive memories of the witnessed events.The findings illuminate brain mechanisms involved in the encoding of information in ways that make intrusive memories more likely.

View Article: PubMed Central - PubMed

Affiliation: Department of Psychology, Biological Psychology Unit, University of Graz, Graz, Austria.

Show MeSH
Related in: MedlinePlus