Substance Use Disorders and Psychoactive Drugs

Substance Use Disorder Criteria

• Substance use becomes problematic when individuals use more or for longer than intended.
• Significant time is spent acquiring, using, or recovering from substance effects.
• Intense cravings for the substance are experienced.
• Diminished control is evident, as substance use disrupts work, school, or home life.
• Continued use persists despite negative social consequences.
• Social, recreational, and work activities are reduced due to substance use.
• Tolerance develops, requiring increased amounts for the same effect.
• Withdrawal symptoms occur upon cessation of use.

Psychoactive Drugs & Dependence

• Psychoactive drugs alter perceptions and moods by affecting the nervous system.
• Tolerance is the diminished effect of a drug with repeated use of the same dose.
• Addiction is the compulsive need for a substance despite negative consequences.
• Withdrawal is the discomfort and distress following cessation of drug use.
• Physical dependence involves the body needing the substance to function normally, leading to withdrawal upon stopping.
• Psychological dependence is characterized by intense cravings for the drug, often for relief from negative feelings.

Categories of Psychoactive Drugs

• Psychoactive drugs broadly categorized into depressants, stimulants, and hallucinogens, each affecting the nervous system and impacting perception, mood, consciousness, cognition, or behavior.

Depressants

• Depressants reduce nervous system activity and slow body functions.

Alcohol: A Depressant

• Alcohol slows brain activity, impairing judgment and inhibitions.
• It slows sympathetic nervous system activity.
• Effects include slowed reactions, slurred speech, and impaired skills (e.g., driving).
• Memory disruption is a common consequence.
• Adolescent binge drinking can lead to nerve cell death, reduced neurogenesis, and impaired synaptic connections.
• Alcohol reduces self-awareness and self-control.
• Negative long-term effects include depression, memory loss, organ damage, impaired reactions, and death.

This quiz explores the criteria for substance use disorders and the impact of psychoactive drugs on behavior and dependence. Test your knowledge on addiction, tolerance, withdrawal symptoms, and their effects on individuals' lives. Perfect for students studying psychology or healthcare.