High levels of childhood trauma associated with changes in hippocampal functional activity and connectivity in young adults during novelty salience

Mélodie Derome*, Sandra Machon, Holly Barker, Petya Kozhuharova, Natasza Orlov, Elenor Morgenroth, Kenneth Hugdahl, Paul Allen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Childhood trauma (CT) has been linked to increased risk for psychosis. Moreover, CT has been linked to psychosis phenotypes such as impaired cognitive and sensory functions involved in the detection of novel sensory stimuli. Our objective was to investigate if CT was associated with changes in hippocampal and superior temporal gyrus functional activation and connectivity during a novelty detection task. Fifty-eight young adults were assigned to High-CT (n = 28) and Low-CT (n = 24) groups based on their scores on the childhood trauma questionnaire (CTQ) and underwent functional Magnetic Resonance Imaging during an auditory oddball task (AOT). Relative to the Low CT group, High CT participants showed reduced functional activation in the left hippocampus during the unpredictable tone condition of the AOT. Furthermore, in the High CT group, psychophysiological interaction analysis revealed hypoconnectivity between the hippocampus and temporal and medial regions. The present study indicates both altered hippocampal activation and hippocampal-temporal-prefrontal connectivity during novelty detection in individuals that experienced CT, similarly to that reported in psychosis risk populations. Early stressful experiences and environments may alter hippocampal function during salient events, mediating the relationship between childhood trauma and psychosis risk.

Original languageEnglish
Pages (from-to)1061-1072
Number of pages12
JournalEuropean archives of psychiatry and clinical neuroscience
Volume273
Issue number5
DOIs
Publication statusPublished - Aug 2023

Keywords

  • Development
  • Neuroimaging
  • Schizophrenia spectrum

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