Describing addiction Flashcards
What is addiction?
A disorder in which an individual consumes a substance or engages in a behaviour that is pleasurable but eventually become compulsive with harmful consequences
What are the key features?
Dependence (physical and psychological)
Tolerance
Withdrawal syndrome
what is meant by the term psychological dependence?
Mental/emotional compulsion to keep taking a substance/behaviour. It may increase their pleasure or lesson their discomfort
What happens with the absence in g drug (psychological dependence)
Causes individual to feel anxious or irritable and this leads to a craving for the substance
What is meant by the term physical dependence?
State of the body that occurs when withdrawal syndrome is produced from stopping substance/behaviour
What’s meant by the term withdrawal syndrome?
collection of psychological and physical symptoms an individual will experience when they no longer have substance/ engage in particular behaviour
What symptoms does withdrawal syndrome have?
Low mood, feeling nauseous, achy, in pain, tremors
Why can withdrawal cause continuation?
Take substance/ engage in behaviour to avoid the symptoms
What 3 factors contribute to the severity of withdrawal syndrome?
1.)The substance used/type of behaviour
2.) The amount of substance consumed
3.) drug use/behaviour pattern
When does tolerance arise?
When you have taken the substance/maintained the behaviour for some time
What happens to the response of the substance/behaviour when there is repeat exposure?
Reduced, need greater doses to feel the same psychological and physical effect
3 examples of tolerance?
Cellular tolerance
Metabolic tolerance
Behavioural tolerance
What is cellular tolerance?
When brain neurons adapt their responsiveness to higher levels of a substance
What is metabolic tolerance?
MT takes place when a substance has been metabolised quicker, therefore leaves body quicker
What is behavioural tolerance?
Learns, through experience, to adjust behaviour to compensate for the effect of the drug eg: walking more slowly to avoid falling over when drunk