�Etat de stress post-traumatique Anxiety Disorders Anxiety disorders Apprentissage Behavior and Behavior Mechanisms Disease Diseases Human information processing Intrusive thoughts Learning M�emoire Maladies Maladies mentales Manifestations neurologiques des maladies Memory Memory Disorders Memory disorders Mental Disorders Mental Processes Mental illness Nervous System Diseases Nervous system Neurobehavioral Manifestations Neurologic Manifestations Neurologic manifestations of general diseases PSYCHOLOGY Pathological Conditions, Signs and Symptoms Pens�ee Pens�ees intrusives Post-Traumatic Stress Disorder (PTSD)