UNIT #2 Flashcards
The DSM-IV classifies substance-related disorders into two major categories:
substance use disorders and substance-induced disorders.
substance-induced disorders
Disorders, such as intoxication, that can be induced by using psychoactive substances
Substance use disorders
are patterns of maladaptive use of psychoactive substances. These disorders, which include substance abuse and substance dependence
substance abuse
(5)
(1) is a pattern of recurrent use that leads to damaging consequences.
(2) Damaging consequences may involve failure to meet one’s major role responsibilities (e.g., as student, worker, or parent), (3) putting oneself in situations where substance use is physically dangerous (e.g., mixing driving and substance use), (4) encountering repeated problems with the law arising from substance use (e.g., multiple arrests for substance-related behavior), or
(5) having recurring social or interpersonal problems because of substance use (e.g., repeatedly getting into fights when drinking
substance dependence
(3)
(1) Substance abuse continues for a long period of time or progresses
(2) a more severe disorder associated with physiological signs of dependence (tolerance or withdrawal syndrome) or compulsive use of a substance.
(3) People who become compulsive users lack control over their drug use. They may be aware of how their drug use is disrupting their lives or damaging their health, but feel helpless or powerless to stop using drugs, even though they may want to.
Diagnostic Features of Substance Dependence
(7)
(1) Tolerance for the substance
(2) Withdrawal symptoms
(3) Taking larger amounts of the substance or for longer periods of time than the individual intended
(4) Persistent desire to cut down or control intake of substance or lack of success in trying to exercise self-control.
(5) Spending a good deal of time in activities directed toward obtaining the substance
(6) The individual has reduced or given up important social, occupational, or recreational activities due to substance use
(7) Substance use is continued despite evidence of persistent or recurrent psychological or physical problems either caused or exacerbated by its use
Tolerance
is a state of physical habituation to a drug, resulting from frequent use, such that higher doses are needed to achieve the same effect.
withdrawal syndrome (also called an abstinence syndrome)
(3)
(1) is a cluster of symptoms that occur when a dependent person abruptly stops using a particular substance following heavy, prolonged use.
(2) People who experience a withdrawal syndrome often return to using the substance to relieve the discomfort associated with withdrawal, which thus serves to maintain the addictive pattern.
(3) Withdrawal symptoms vary with the particular type of drug.
addiction
(3)
(1) is compulsive use of a drug accompanied by signs of physiological dependence.
(2) People become compulsive users when they have impaired control over their use of a drug.
(3) In effect, they feel compelled to continue using the drug despite the negative consequences that continued use of the drug entails.
physiological dependence. (2)
(1) A condition in which the drug user’s body comes to depend on a steady supply of the substance.
(2) The major signs of physiological dependence are the development of tolerance and a withdrawal syndrome.
psychological dependence
Compulsive use of a substance to meet a psychological need
Although the progression to substance dependence varies from person to person, one common pathway involves a progression through the following stages:
(2)
(1) Experimentation
(2) Routine use
Experimentation
(1) the drug temporarily makes users feel good, even euphoric.
(2) Users feel in control and believe they can stop at any time.
Routine Use
(4)
(1) people begin to structure their lives around the pursuit and use of drugs.
(2) Denial plays a major role at this stage, as users mask the negative consequences of their behavior to themselves and others.
(3) Values change.
(4) What had formerly been important, such as family and work, comes to matter less than the drugs.
Drugs of abuse are generally classified within three major groupings:
(a) depressants, such as alcohol and opioids; (b) stimulants, such as amphetamines and cocaine; and (c) hallucinogens
depressant
(2)
(1) is a drug that slows down or curbs the activity of the central nervous system.
(2) It reduces feelings of tension and anxiety, slows movement, and impairs cognitive processes.
Risk Factors for Alcoholism
(5)
(1) gender
(2) age
(3) antisocial personality disorder
(4) family history
(5) Sociodemographic factors
barbiturates
Sedative drugs which are depressants with high addictive potential
narcotics
Drugs that are used medically for pain relief but that have strong addictive potential.
stimulants
Psychoactive substances that increase the activity of the nervous system.
amphetamines
A class of stimulants that activate the central nervous system, producing heightened states of arousal and feelings of pleasure.
major theoretical perspectives on substance abuse and dependence
(5)
(1) Biological Perspectives
- Neurotransmitters
- genetic factors
(2) Learning Perspectives
- Operant Conditioning
- Alcohol and Tension Reduction
- Negative Reinforcement and Withdrawal
- The Conditioning Model of Cravings
- Observational Learning
(3) Cognitive Perspectives
(4) Psychodynamic Perspectives
(5) Sociocultural Perspectives
Neurotransmitters
(4)
(1) Many psychoactive drugs, including nicotine, alcohol, heroin, marijuana, and especially cocaine and amphetamines, increase levels of the neuro-transmitter dopamine in the brain’s pleasure or reward circuits—the networks of neurons responsible for producing feelings of pleasure or states of euphoria
(2) Consequently, the brain’s natural reward system—the “feel good” circuitry that produces states of pleasure associated with the ordinarily rewarding activities of life,—becomes blunted
(3) the addict’s brain comes to depend on having the drug available to produce feelings of pleasure or satisfaction
(4) Endorphins and opiates dock at the same receptor sites in the brain. Normally, the brain produces a certain level of endorphins that maintains a psychological steady state of comfort and potential to experience pleasure. However, when the body becomes habituated to a supply of opioids, it may stop producing endorphins. This makes the user dependent on opiates for comfort, relief from pain, and pleasure.
Biological perspectives (2)
(1) focuses on uncovering the biological pathways that may explain mechanisms of physiological dependence.
(2) spawns the disease model, which posits that alcoholism and other forms of substance dependence are disease processes.
Genetic factors (2)
(1) Evidence links genetic factors to various forms of substance use
(2) Alcoholism tends to run in families). The closer the genetic relationship, the greater the risk.
Learning Perspectives (4)
(1) substance-related behaviors are largely learned and can, in principle, be unlearned
(2) Substance abuse problems are not regarded as symptoms of disease but rather as problem habits.
(3) they emphasize the role of learning in the development and maintenance of these problem behaviors.
(4) Drug use may become habitual because of the pleasure (positive reinforcement) or temporary relief (negative reinforcement) from negative emotions, such as anxiety and depression, which drugs can produce
Examples of learning perspectives (2)
(1) Operant & classical Conditioning
(2) observational learning
Operant Conditioning (3)
(1) learn that the drug can produce reinforcing effects, such as feelings of euphoria, and reductions in anxiety and tension.
(2) can thus be reinforcing when it is used to combat depression (by producing euphoric feelings, even if short lived), to combat tension, or to help people sidestep moral conflicts (for example, by dulling awareness of moral prohibitions).
(3) Substance abuse may also provide social reinforcers, such as the approval of drug-abusing companions and, in the cases of alcohol and stimulants, the (temporary) overcoming of social shyness.
tension-reduction theory
the more often one drinks to reduce tension or anxiety, the stronger or more habitual the habit becomes.
Negative Reinforcement and Withdrawal (operant conditioning) (3)
(1) Once people become physiologically dependent, negative reinforcement comes into play in maintaining the drug habit.
(2) people may resume using drugs to gain relief from unpleasant withdrawal symptoms.
(3) In operant conditioning terms, relief from unpleasant withdrawal symptoms is a negative reinforcer for resuming drug use
The Conditioning Model of Cravings (Classical conditioning) (5)
(1) may help explain drug cravings.
(2) In this view, cravings reflect the body’s need to restore high blood levels of the addictive substance and thus have a biological basis.
(3) also come to be associated with environmental cues associated with prior use of the substance.
(4) These cues, such as the sight or aroma of an alcoholic beverage or the sight of a needle and syringe, become conditioned stimuli that elicit a conditioned response: strong cravings for the drug.
(5) Sensations of anxiety or depression that are paired with the use of alcohol or drugs may also elicit cravings.
Observational Learning (2)
(1) Modelling or observational learning plays an important role in determining risk of substance abuse problems.
(2) Parents who model inappropriate or excessive drinking or use of illicit drugs may set the stage for maladaptive drug use in their children
Cognitive Perspectives
(3)
(1) focus on roles of attitudes, beliefs, and expectancies in accounting for substance use and abuse.
(2) Expectancies about the perceived benefits of using alcohol or other drugs and smoking cigarettes clearly influence the decision to use these substances.
(3) Alcohol or other drug use may also boost self-efficacy expectations—personal expectancies we hold about our ability to successfully perform tasks. If we believe we need a drink or two (or more) to “get out of our shell” and relate socially to others, we may come to depend on alcohol in social situations.
treatment has often been a frustrating endeavour (2)
(1) Treatment takes place in a setting—such as the therapist’s office, a support group, a residential center, or a hospital—in which abstinence is valued and encouraged. Then the individual returns to the work, family, or street settings in which abuse and dependence were instigated and maintained. The problem of relapse can thus be more troublesome than the problems involved in initial treatment.
(2) many people with substance abuse problems have other psychological disorders as well. However, most clinics and treatment programs focus on the drug or alcohol problem, or the other psychological disorders, rather than treating all these problems simultaneously. This narrow focus results in poorer treatment outcomes, including more frequent rehospitalizations among those with these dual diagnoses.
detoxification
The process of ridding the system of alcohol or other drugs under supervised conditions.
Disulfiram
discourages alcohol consumption because the combination of the two produces a violent response consisting of nausea, headache, heart palpitations, and vomiting