War veterans and victims of violent attacks may experience nightmares, anger, and anxiety long after their exposure to violence. This reaction is called the

A) posttraumatic stress disorder.
B) opponent-process reaction.
C) general adaptation syndrome.
D) nervous exhaustion condition.

Posttraumatic Stress Disorder

A psychiatric disorder that can occur in people who have experienced or witnessed a traumatic event such as a natural disaster, a serious accident, a terrorist act, war/combat, rape, or other violent personal assault.

Opponent-Process Reaction

A theory suggesting that emotions are regulated by mechanisms that operate in opposing pairs; for example, an increase in happiness leads to a decrease in sadness.

General Adaptation Syndrome

describes the three-stage process (alarm, resistance, exhaustion) that the body undergoes while responding to stress, as identified by Hans Selye.