1. Odd/Eccentric Behavior Cluster

• Schizoid: Are introverted, withdrawn, and emotionally restricted. These individuals tend to fear intimacy and are socially detached.

• Paranoid: Have difficulty trusting others and are prone to aggressive and angry outbursts. They are unforgiving, jealous, and secretive, and often perceive others as being unfaithful or deceitful.

• Schizotypal: Exhibit odd or eccentric manners and speech. They experience distorted thoughts and perceptions, and have difficulties forming relationships.

2. Emotional/Erratic Behavior Cluster

• Borderline: Have abrupt mood swings, unstable relationships, and distorted thinking under stress. They experience the world in extremes, fear abandonment, struggle with self-image, and can be self-destructive and suicidal.

• Narcissistic: Display a constant need for admiration and attention, and have an exaggerated sense of self-importance. They lack empathy and can be overly sensitive to criticism; prone to mood swings ranging from feelings of emptiness and insecurity to grandiosity.

• Antisocial: Are manipulative, impulsive, and irresponsible individuals who are not empathic. They are at risk for alcohol and substance abuse, often get into legal difficulties, and can become violent and aggressive when provoked.

• Histrionic: Attention-seeking individuals who are excessively emotional. They are often self-indulgent and manipulative.

3. Anxious/Fearful Behavior Cluster

• Avoidant: Are overly sensitive to rejection, timid, and uncomfortable in social situations. They sometimes have no close relationships outside of their immediate family.

• Dependent: Submissive individuals who lack self-confidence and depend on others to make decisions. They are uncomfortable being alone and crushed if a close relationship ends.

• Obsessive-Compulsive: Methodical, conscientious individuals who strive for perfection but are rarely satisfied with whatever achievements they make. They often take on too many different responsibilities and are unable to adapt to changes that occur. They feel helpless when a situation is not under tight control.