Final answer:
The substance abuse continuum details 6 levels of substance use, outlining the progression from non-use to addiction. DSM-5 provides diagnostic criteria for substance use disorders, acknowledging both the compulsive use of substances and resulting dependencies, physical or psychological.
Step-by-step explanation:
The substance abuse continuum suggests that there are different levels of substance use, ranging from no use to severe addiction. According to the content loaded the substance abuse continuum, there are 6 distinct levels, which help to categorize the extent and nature of an individual's substance use. The Diagnostic and Statistical Manual of Mental Disorders Fifth Edition (DSM-5), defines substance use disorders based on a range of criteria, such as the compulsive pattern of drug use despite negative consequences and whether physical or psychological dependence has developed. Psychoactive substances, which include depressants, stimulants, opiates and hallucinogens, impact various neurotransmitter systems in the body and can lead to addiction and dependence.
Learning about the neurotransmitter systems impacted by substance use and the diagnostic criteria for substance use disorders is crucial for identifying and treating these conditions.