Trauma and stressor-related disorders often arise in response to specific events or incidents that cause significant psychological stress. One of the most frequently discussed conditions in this category is Post-Traumatic Stress Disorder (PTSD). Symptoms may include intrusive memories, avoidance of reminders of the trauma, negative changes in mood and cognition, and increased arousal.
Which of the following best exemplifies a key feature of trauma and stressor-related disorders?