Biological Explanations for Smoking - Addiction Flashcards Preview

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Flashcards in Biological Explanations for Smoking - Addiction Deck (6):
1

How can neurotransmitters explain initiation of smoking?

- Dopamine give you a sense of pleasure
- A memory forms which is linked to what you were doing at the time dopamine was released (linked to motor actions)
- Regal pathway is responsible for making sure you repeat the behaviour by connecting regions of the brain that control memory and behaviour

2

How can Miyata's study help to explain initiation?

Nicotine inclusion in rats to see relationship between dopamine and serotonin in the lateral hypothalamic area (LHA)
- Dopamine increased in LHA - shows how memory can be formed which is linked to dopamine to cause initiation

3

How can neurotransmitters explain maintenance?

- When you smoke the brain creates nicotine receptors which continue to grow and always need nicotine
- Person continues to smoke to relate the feeling of stress caused by the desire for nicotine
- Brain area which normally inhibits risky behaviour is impaired, causing smokers to choose the immediate reward of nicotine without thinking of the consequences

4

How does Miyata's study help to explain maintenance?

Stopping the nicotine caused dopamine to decrease = makes person feel low and stressed so continues to smoke to maintain high

5

How do neurotransmitters explain relapse?

- A specific motor action that is linked to dopamine such as rolling a cigarette can cause you to replace back into the behaviour
- Addicts are highly sensitive to reminders of past highs
- Smokers are at high risk of relapse when stressed

6

How does Miyata's study help to explain relapse?

If smoking increases dopamine a memory/motor action linked to it may release dopamine causing the individual to smoke to gain higher levels of dopamine