Two areas of the brain 'disconnect' in women with post-traumatic stress following sexual assault

In women suffering from post-traumatic stress disorder (PTSD) after experiencing sexual assault, the connectivity between two areas of the brain within the fronto-limbic system is altered, according to a study presented at the European College of Neuropsychopharmacology conference held in Amsterdam (Netherlands). The study, led by a researcher at Hospital Clínic in Barcelona, compared brain images of 40 women with PTSD following a recent sexual assault and 45 control cases. In 22 of these 40 women, communication between the amygdala—which helps process emotions such as fear—and the prefrontal cortex—which helps regulate those emotions—had almost completely disappeared.

14/10/2025 - 00:05 CEST
Expert reactions

251014 TEPT César EN

César San Juan

Researcher in the Department of Social Psychology and lecturer in Criminal Psychology at the University of the Basque Country (UPV/EHU)

Science Media Centre Spain

Based on the information provided, we can intuit that the methodology is sound. The fronto-limbic disconnection coincides with previous findings in PTSD. What is new is that the analysis was performed after sexual assault. The fact that in more than half of the patients the amygdala-cortex connection, which is responsible for managing emotions, almost disappeared is a remarkable result.

It is also relevant that no correlation was found between amygdala-cortex disconnection and symptom severity, indicating that this alteration is specific to PTSD but does not reflect clinical severity. As this is a cross-sectional study, future research should explore longitudinal data to confirm the findings.

This work reinforces the neurobiological basis of PTSD following sexual assault, underscoring the need for early psychological follow-up of victims. If it is confirmed that amygdala-prefrontal disconnection predicts therapeutic response, neuroimaging could help identify higher-risk cases and personalise treatment.

The author has declared they have no conflicts of interest
EN

251015 PTSD raul EN

Raül Andero Galí

Psychologist and ICREA Research Professor at Autonomous University of Barcelona

Science Media Centre Spain

This study’s main strength lies in showing that the established medial prefrontal cortex–amygdala connectivity implicated in PTSD is also key in women with PTSD who have recently experienced sexual assault. This finding is particularly important given the urgent need to develop more effective treatments for women affected by PTSD following sexual assault. Moreover, PTSD research offers a unique opportunity, as its onset is typically traceable to a specific traumatic event, making it a promising candidate for prevention among mental disorders.

The author has declared they have no conflicts of interest
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L. Fortea et al. ENCP Congress.

Study types:
  • Non-peer-reviewed
  • Communication
  • Observational study
  • People
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