4.2:Addiction Flashcards
Substance Use Disorder
condition characterised by the uncontrollable use of one or more substances (e.g., alcohol, drugs) despite significant negative consequences on an individual’s health, relationships, work, and overall functioning. It is considered a chronic and relapsing brain disorder involving physical, psychological, and behavioural components.
DSM-5 Substance Use Disorder
problematic pattern of substance use leading to clinically significant
impairment or distress
- substance is taken for longer periods/ larger amounts than originally intended
- persistant desire+ unsuccesful efforts at cutting down// quitting
- great deal of time spend searching for drug/ using drug / recover from its effects
- craving, strong desire to use the drug
- recurrent use leading to failure to maintain daily functioning- roles at home, work
- continued use despite consistent interpersonal issues over use
- Important social, occupational, or recreational activities are given up
or reduced because of substance use - Recurrent substance use in situations in which it is physically
hazardous - use is continued despite knowledge of having a
persistent or recurrent physical or psychological problem likely to be caused or exercebated by the substance. - tolerance
a. a need for markedly increased amounts of the substance to achieve
intoxication or desired effect
b. markedly diminished effect with continued use of the same amount
of the substance - Withdrawal, as manifested by either of the following:
a. the characteristic withdrawal syndrome for the substance (refer to
Criteria A and B of the criteria sets for Withdrawal from the specific
substances)
b. the same (or a closely related) substance is taken to relieve or avoid
withdrawal symptoms
definitions related terms to SUD
addiction
drug use to the point where the body’s normal state is the drugged state - so the body requires the drug to feel normal
definitions related terms to SUD
Psychological Dependence
The user’s tendency to alter their life because of the drug and to centre their activities around the drug
definitions related terms to SUD
Craving
a strong subjective druve to use the substance
definitions related terms to SUD
Tolerance
the need for greater amount of the drug or substance to achieve intoxication (the desired effect) or a markedly diminished effect with continued use of the same amount of the drug or subtance.
definitions related terms to SUD
Withdrawl
maladaptive behavioural change, with physiological and cognitie contamitants, that occurs when blood or tissue concentration of a sustance or drug decline in an individual who has previously maintained prolonged hevay use of the substance or drug.
definitions related terms to SUD
Substance
a drug of abuse, medication, or a toxin
Commorbidity SUD & other disorders
high rates of comorbidity: b/w 41-76% of indiv w SUD have at least one other psychopathology
strong association with mood and axiety disorders.
high risk groups:
- bipolar disorder
- ADHS + Schiz
- antisocial personality disorder
explaination of comorbidity of SUD + other psychopathologies
- substance use as a risk factor for psychopathology- can trigger
BUT: there is a higher chance of SUD after psych disorder than vive versa - self medication hypothesis
* Explanation:
o Individuals with psychopathology may turn to substances to manage negative emotional and behavioural symptoms.
o Example: Using cannabis or alcohol to cope with anxiety or depressive symptoms (Turner et al., 2018).
* Contrasting Evidence:
o Chapter 8 highlights the possibility of a causal link between cannabis use and psychotic symptoms, suggesting a bidirectional relationship
Addiction as dyscontrol
Substance use dyscontrol: “drug usage becomes a substance use
disorder when persons are significantly impaired in their control of
this usage”
Rats given access to drugs
▪ Cease grooming and
eating (especially with
cocaine)
▪ Deterioration of health
Stimulants
Amphetamine, cocaine, XTC, nicotine,
caffeine, Adderall/Ritalin
▪ Stimulate psychological and sensorymotor functioning (alertness, energy,
confidence)
▪ Therapeutic uses (amphetamines): treat
ADHD and narcolepsy, formerly for
asthma and for sinus decongestion
▪ Adverse effects: irritability, reduced
executive functions, paranoia, insomnia
Sedatives
Opium, morphine, codeine,
heroin, methadone
▪ Euphoria, well-being, lack of negative
emotion
▪ Therapeutic uses: analgesia, cough
suppression, antidiarrheal,
suppression of opiate withdrawal
(methadone)
▪ Adverse effects: anxiety, pain
sensitivity, insomnia
Psychogenics
Hallucinogens = LSD, mescaline, psilocybi
- Altered states of consciousness but anxiety/paranoia
▪ Psi = mystical experience; openness
Cannibinoids = marijuana, hashish
▪ Well-being; perceptual changes but agitation, anxiety, paranoia
▪ Therapeutic use: anti-nausea, appetite stimulation, analgesia
Stimulatory hallucinogens = MDMA (ecstasy)
▪ Euphoria, sociability, perceptual changes but anxiety,
depression, fatigue
▪ Therapeutic use? Adjunct to PTSD psychotherapy
Non-substance addiction
Gambling disorder (DSM-IV impulse control d.o.
→ “behavioral addiction” in DSM-V)
▪ Tolerance, unsuccessful efforts to control
▪ Videogames, internet as addiction? (internet in
appendix of DSM-V)
1. A great deal of time is spent in activities necessary to
obtain the substance
2. Important social, occupational, or recreational activities
are given up or reduced because of substance use
3. The substance use is continued despite knowledge of
having a persistent or recurrent physical or
psychological problem that is likely to have been caused
or exacerbated by the substance
▪ But dyscontrol?
Alcohol Use Disorder
characterised by an inability to control or stop alcohol consumption despite adverse consequences to physical health, mental well-being, and social or professional functioning
- Binge Drinking:
o High alcohol intake in one session (e.g., 8 units for men, 6 units for women in the UK). - Ethyl Alcohol:
o The intoxicating constituent of alcoholic beverages. - Biphasic Effects:
o Alcohol acts initially as a stimulant and later as a depressant.
Physical Effects of Heavy Alcohol Consumption
- withdrawl symptoms (restlessness, insomnia, anxiety, depression)
- Delirium Tremens (DT)- severe withdrawl symptoms, delirium, hallucinations
- long term health risks- cardiovascular, gastrointestinal, neurological, nutritional deficiencies.
- fetal alcohol syndrome (FAS)- heavy drinking during pregnancy leading to physical deformities, heart problems.
DSM-5 Diagnostic Criteria for Alcohol Use Disorder
- Definition:
o A problematic pattern of alcohol use causing clinically significant impairment or distress. - Key Features:
o Behavioural and physical symptoms, including:
Tolerance: Needing more alcohol for the same effect.
Withdrawal: Symptoms developing within 4–12 hours of restricted consumption.
o Compulsive drinking: Life revolves around obtaining and consuming alcohol.
o Impacts on daily responsibilities: poor work performance, neglecting kids.
Course of alcholol use disorder
Progression of Alcohol Use Disorders
1. Stages of Development:
o Heavy and Regular Drinking:
Early stage involving frequent consumption of large amounts of alcohol.
o Alcohol Abuse:
Alcohol consumption begins to interfere with daily life and responsibilities.
o Alcohol Use Disorder:
Final stage characterised by dependency and significant impairment or distress.