Symptoms may include delusions, hallucinations, paranoia, and confusion. Adverse psychiatric reactions are possible, such as anxiety, paranoia, and delusions. Mistaken suspicion, paranoia and anger spread with it. Symptoms include depression, anxiety, withdrawal, confusion, paranoia, and sympathetic hyperactivity. Max suffers from cluster headaches, extreme paranoia, hallucinations, and social anxiety disorder. After Reznik is fired, he goes into a downward spiral of guilt, paranoia and delusion. Gialli are noted for psychological themes of madness, alienation, sexuality, and paranoia. This treatment contributed greatly to Klaus' narcissism, hunger for power, paranoia and psychosis. The central theme of "The Thing" concerns paranoia and mistrust. He is then wracked with guilt and paranoia. His addiction led to increasing paranoia and depression. These included moodiness, problems with concentration and short term memory, paranoia, and hallucinations. A species might undertake such extermination out of expansionist motives, greed, paranoia, or aggression. Her paranoia and loneliness begin to drive her insane. Sound effects helped create the noir mood of paranoia and nostalgia.