# New case study offers causal evidence linking the right amygdala to PTSD

Source: [PsyPost – Psychology News](https://www.psypost.org/new-case-study-offers-causal-evidence-linking-the-right-amygdala-to-ptsd/) · 2026-11-14 · Mind
Page: https://themorning.science/story/new-case-study-offers-causal-evidence-linking-the-right-amygdala-to-ptsd-2e35aaf9c365aba6
Kind: research · Impact: medium

## In brief

- A case study reports on a man with drug-resistant epilepsy and severe PTSD.
- Selectively inactivating part of his right amygdala reduced his tendency to perceive ambiguous faces as fearful.
- The inactivation was followed by a sharp drop in trauma-related symptoms, according to the PsyPost summary.

## Why it matters

The study offers causal rather than purely correlational evidence linking the right amygdala to PTSD, which could inform future research on targeted brain interventions. It is a single rare clinical case, so it cannot establish how the effect generalises to other patients.

## Coverage

- [New case study offers causal evidence linking the right amygdala to PTSD](https://www.psypost.org/new-case-study-offers-causal-evidence-linking-the-right-amygdala-to-ptsd/) — PsyPost – Psychology News, 2026-11-14

Tags: amygdala, ptsd, neuroscience, epilepsy, fear processing

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Science – https://themorning.science