- > M.O.A
- Drugs are chemicals and work in brain to provide pleasure reaction
- Drug acts like other neurotransmitters
- When released by chemical impulse, neurotransmittter crosses synaptic gap
- Fit with receptors of another neurone
- Recreational drugs, like other drugs, work at receptor of a neurone
- Drugs prevent re uptake of neurotransmitter
- = Neural transmission is blocked
e.g. stimulant drug (ectasy/speed) makes stimulation of neuron easier
e.g. depressamt drug (alcohol/heroin) slow down brain activity which means communication of messages between neurons are less effective
Different drugs work in different ways
Both dopamine and serotonin systems in brain are involved in misuse/addiction
These neurotransmitters linked to pleasure and positive emotions
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