5. Addiction And Substance Misuse Flashcards
(71 cards)
Addiction
• “Not having control over doing, taking, or using something to the point where it could be harmful to you or to others.”
Substance misuse
• “A patterned use… in which the user consumes the substance in amounts or with methods which are harmful to themselves or others
behavioural addiction
• “A… pattern that is characterized by recurrent failure to control the behaviour, and continuation of the behaviour despite significant harmful consequences.”
2 • Diagnositic materials, used to identify mental health disorder
ICD-11
DSM – 5
Icd-11
• Substance Dependence:
○ Repeated or continuous use leads to impaired control, increasing priority given to the substance, and physiological features indicative of neuroadaptation (tolerance, withdrawal, repeated use).
Icd-11
• Harmful Patterns of Substance Use:
○ Repeated use of a substance that has directly damaged the user’s physical or mental health, or has resulted in behaviour which directly caused harm to others.
Icd-11
• Hazardous Substance Use:
○ Substance use is a risk factor. It has not yet caused harm, but the pattern of substance use has increased the risk of harm to the user and others.
DSM-5 defines a single diagnosis
• Substance Abuse Disorder: The use of ten separate classes of substance; alcohol, caffeine, cannabis, hallucinogens, inhalants, opioids, sedatives and anxiolytics, stimulants, tobaccos, or ‘other’ substances that lead to a rewarding feeling that may be so profound that they neglect other normal activities
DSM-5 Psychoactive substances
- Alcohol
- Caffeine
- Cannabis
- Inhalants
- Hallucinogens
- Opiods
- Sedatives
- Stimulants
- Tobacco
- Oter = e.g. new drugs or discovered addictive substances
Impaired control
○ Wanting to stop using the substance or to cut down but not being able to
Impaired priority
○ Spending more time using the substance so that responsibilities are beginning to be neglected and social, occupational, or recreational activities are avoided or given up.
—> individual struggles to stop and gives more priority to the addiction
Harmful outcomes
–> these can be co nsequences of given priority to addiction
Symptoms od withdrawl
Decisions due to impaired control
○ Substance use to a degree that interferes with major life obligations. Continued use despite legal/ social/ interpersonal issues. Recurrent abuse even when intoxication is dangerous. • For something to become a disorder it has to have a negative impact on uindividal and others
Opiod crisis
- Started in america as pharmaceutical companies, marketed drugs incorrectly hiding addictive side effects
- These were then prescribed by medical proffessionals
- Public use of these opiods led to opiod crisis in america and similar crisis in the uk
Medical risks of addiction
- Liver Damage
- Cardiovascular Disease
- Stroke
- Seven types of Cancer
- HIV/AIDs
- Hepatitis B and C
- Lung Disease
- Mental Disorders
- Physical Injuries from Risk Behaviour such as Driving
- Etc…
Non medical risks of addiction
- Impaired Control Over Use
- Social Issues
- Legal Issues / Criminality
- Neglected Responsibilities
- Strained Finance
The reward pathway - steps
- Pleasurable/ rewarding stimulus
- Release of dopamine in the brain – ventral tegmnetal area in midbrain
- Dopamine is sent to several brain regions part of mesolimbic pathway
- These parts of brain have dopamine receptors and receive it
- Euphoric feeling – amygdala recognises as pleasurable
- Hippocampus records the situtation as a memory – so person can experience it again get the pleasurable stimulys again
- Nucleus accumulus – makes you repeat the behave get the feeling again e.g. have another bite of cake, it makes you lift hands
- Pre frontal cortex – makes you focus on pleasurable behaviour and intend on repeating it
- Next rewarding action = more release of dopamine = more feeling of pleasure
Reward pathway - neurotransmitters
As dopamine levels go up in reward pathway – serotinin levels decrease
—> serotini = responsible for feeling satisfied, like yu have had enough of soemthing
* Felling more euphoric each time * But less content and satisfied ewach time
Tolerance - steps
- Axon of presynaptic neuron sends dopamine to post synaptic neuron
- Post synaptic receptors recieev dopamine
- Addictions alter this brain chemistry
- Overstimuluation with too mcuh dopmaine – turns off some of these dopamine receptors
○ Same amount of stimuli doesn’t give same effect
Tolerance - definition
• One becomes addicted to a substance and needs more to produce the same effect / reward.
Withdrawal
—>One might not always have access to the substance, and that’s when withdrawal occurs.
1. Brain is used to the high level of dopamine 2. Stimuli with smaller effect won't produce the strong enough feeling of reward to account for missing stimulus
Withdrawal symptoms
- depression
- Anxiety
- shaking
- Sweating
Strange addictions
- Addictions to things seeming weird
- e.g. eating sofa cushions
- But actions of addictions can be seen in this situation
Just because one person finds something addictive – the substance can’t just be classified as addictive
Categorising addiction is important because
- Attributing behaviour as a disorder that isn’t actually a disorder
- Can lead to wrong treatment and diagnosis
3 types of theories of addiction
- Neuroscientific
- Psychological
- Sociocultural