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Blunted Brain Reactivity To Mutilation Pictures in Patients with Posttraumatic Stress Disorder and Exposure To

Aline F Bastos1, Leticia de Oliveira2, Mirtes G Pereira2

  • 1Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ Brazil.

Journal of Child & Adolescent Trauma
|March 23, 2026
PubMed

Keywords:
Blunted reactivityChildhood sexual abuseFMRIMidcingulatePTSDParietal cortex

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Repressed memories are a psychological phenomenon where memories of traumatic events are unconsciously blocked from a person's awareness. This process occurs as a defense mechanism, protecting the mind from the emotional impact of distressing or painful experiences. For example, a person who has experienced childhood trauma may grow up with no conscious recollection of the event. In such cases, the memories are thought to be buried deep within the subconscious, inaccessible to the conscious...
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Emotionally traumatic events often lead to memories that are exceptionally vivid and enduring, sometimes persisting with remarkable clarity throughout an individual's life. A classic example of this phenomenon is a person who survives a car accident. Even years later, they may recall every detail of the event with startling accuracy — the screeching of the tires, the jarring impact, and the acrid smell of burning rubber. Such vividness contrasts sharply with how an individual...
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