Acute Stress Disorder is characterized by the development of severe anxiety, dissociative, and other symptoms that
occurs within one month after exposure to an extreme traumatic stressor (e.g., witnessing a death or serious accident).
As a response to the traumatic event, the individual develops dissociative symptoms. Individuals with Acute Stress
Disorder have a decrease in emotional responsiveness, often finding it difficult or impossible to experience pleasure in
previously enjoyable activities, and frequently feel guilty about pursuing usual life tasks.