Discussion Launcher (Learning Objective 13.7, p. 337)
List some reasons why personality disorders are not usually diagnosed until late adolescence or early
adulthood.
Generally, to be diagnosed with any of the personality disorders, a young adult has to have been
exhibiting the associated behavior since mid or late adolescence. In addition, the person should
demonstrate the behavior consistently, across all kinds of situations. Most personality disorders remain
Schizophrenia
Another type of serious mental illness that is often first diagnosed in early adulthood is schizophrenia, a
mental disorder characterized by false beliefs known as delusions and false sensory experiences called
hallucinations.
Discussion Launcher (Learning Objective 13.7, p. 338)
Give examples to distinguish between delusions and hallucinations.
For most people with schizophrenia, these disturbances of thought become so severe that they can no
longer function at work, at school, or in social relationships. They may engage in behavior that endangers
Substance Use and Abuse
LO 13.8 What is the difference between physical and psychological substance abuse?
Alcoholism and significant drug addiction also peak between ages 18 and 40, after which they decline
gradually. The rates of addiction are higher for men than for women, but the age pattern is very similar in
both genders. Binge drinking (usually defined as consuming five or more drinks on one occasion) is
Discussion Launcher (Learning Objective 13.8, p. 338)
Why do you think binge drinkers do not believe they have a problem with alcohol?
Binge drinking is one of several substance use behaviors that can lead to substance abuse, a pattern of
behavior in which a person continues to use a substance even though it interferes with psychological,
occupational, educational, and social functioning. Four factors influence the addictive potential of a drug:
▪ How fast the effects of the drug are felt