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Related Concept Videos

Obsessive-Compulsive Disorder01:28

Obsessive-Compulsive Disorder

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Obsessive-compulsive disorder (OCD) is a mental health condition characterized by recurrent obsessions, compulsions, or both, which consume significant time and interfere with daily functioning. Obsessions involve persistent, intrusive, and unwanted thoughts, images, or urges that evoke anxiety. Common examples include irrational fears of contamination or harm. Compulsions are repetitive behaviors or mental acts performed to reduce the anxiety caused by obsessions. For instance, individuals...
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Post-traumatic Stress Disorder01:27

Post-traumatic Stress Disorder

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Post-traumatic stress disorder (PTSD) is a psychiatric condition that arises following exposure to traumatic events such as natural disasters, forced displacement, or severe accidents. It significantly impairs individuals' ability to cope with daily activities and disrupts their emotional and psychological equilibrium.
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events,...
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Traumatic Memory01:20

Traumatic Memory

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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...
173
Anxiety: Overview01:18

Anxiety: Overview

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Anxiety is a common mental disorder featuring excessive worry, fear, and apprehension, significantly affecting daily life. People with anxiety disorders experience persistent and intense anxiety, interrupting their everyday functioning.
Individuals with anxiety often experience a range of physical and emotional symptoms, including sweating, trembling, tachycardia, and disturbances in sleep patterns. These symptoms vary in intensity and frequency but are generally disruptive and distressing.
342
Oppositional Defiant Disorder01:30

Oppositional Defiant Disorder

141
A persistent pattern of angry or irritable mood, defiant behavior, or vindictiveness characterizes Oppositional Defiant Disorder (ODD). Symptoms must occur over at least six months, involve interactions with individuals beyond siblings, and meet specific diagnostic criteria to be clinically significant. The disorder affects emotional regulation, social interactions, and behavior, often manifesting early in life and influencing long-term development and functioning.
Diagnostic Criteria and...
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Panic Disorder01:27

Panic Disorder

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Panic disorder is an anxiety disorder characterized by recurrent and sudden minutes-long episodes of intense fear, known as panic attacks. These attacks may feel like heart attacks and often happen without warning or a specific cause. They can include symptoms such as rapid heart rate, shortness of breath, chest pain, trembling, sweating, dizziness, and a sense of helplessness. During a panic attack, individuals may feel as though they are experiencing a heart attack or are in a...
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Related Experiment Video

Updated: Sep 9, 2025

Exploring the Neural Correlates of Cognitive Reappraisal in Obsessive-Compulsive Disorder Using Task-based Functional Magnetic Resonance Imaging
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Exploring the Neural Correlates of Cognitive Reappraisal in Obsessive-Compulsive Disorder Using Task-based Functional Magnetic Resonance Imaging

Published on: March 14, 2025

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Acute Trauma and Obsessive Compulsive Disorder: Evidence from October 7th, 2023.

Eyal Kalanthroff1,2, Shir Berebbi3, Mor David3

  • 1Department of Psychology, The Hebrew University of Jerusalem, Jerusalem, Israel, eyal.kalanthroff@mail.huji.ac.il.

Psychotherapy and Psychosomatics
|August 28, 2025
PubMed
Summary
This summary is machine-generated.

Direct trauma exposure, like the October 7th attacks, significantly increases obsessive-compulsive disorder (OCD) symptoms. This study shows trauma can trigger new OCD cases and worsen existing ones, highlighting a need for mental health screening.

Keywords:
Obsessive compulsive disorderPost-traumaTraumaWar

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Area of Science:

  • Psychiatry
  • Trauma Studies
  • Mental Health Research

Background:

  • Obsessive-compulsive disorder (OCD) onset and exacerbation are theorized to be linked to trauma exposure.
  • Empirical evidence directly linking acute trauma to OCD development or worsening has been limited.
  • The diathesis-stress model suggests environmental factors can trigger predispositions to mental health conditions.

Purpose of the Study:

  • To investigate if direct exposure to the October 7th, 2023, trauma in Israel led to new or intensified OCD symptoms.
  • To compare OCD symptom rates in individuals directly affected by the attacks versus unaffected controls.

Main Methods:

  • A cohort of 132 adults was studied: 66 survivors directly exposed to the October 7th attacks and 66 matched controls.
  • Data on OCD and Post-Traumatic Stress Disorder (PTSD) symptoms were collected 4-6 months post-event.
  • Statistical analyses examined differences in OCD symptoms between groups and the mediating role of PTSD.

Main Results:

  • The directly trauma-exposed group showed significantly higher rates of OCD symptoms compared to controls.
  • PTSD symptom severity partially mediated the link between trauma exposure and increased OCD symptoms.
  • Among directly affected survivors, 39% met criteria for probable OCD, with 24% reporting new-onset symptoms post-trauma.

Conclusions:

  • This study provides direct empirical evidence that acute trauma can trigger new-onset and worsening OCD symptoms.
  • Findings support the diathesis-stress model, emphasizing the role of environmental stressors in OCD.
  • Routine screening for OCD is recommended in populations exposed to significant trauma.