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| Question | Answer |
| Addiction | Drug use that remains compulsive despite its negative consequences |
| Psychoactive Drugs | - Mind-altering substances that people typically take for recreational purposes - These drugs either imitate the brain's natural neurotransmitters or change the activity of particular neurotransmitter receptors |
| Stimulants | Drugs that increase behavioural and mental activity, they improve mood but also cause people to become restless, and they disrupt sleep |
| Depressants | Drugs that reduce behavioural and mental activity by depressing the CNS, in high doses depressants can induce sleep |
| Opiates | Various drugs derived from the opium poppy are able to bind with endorphin receptors and in doing so help relieve pain |
| Hallucinogens | Drugs that produce alterations in cognition, mood, and perception |
| Amphetamines | - Stimulants that increase dopamine in the synapse, their primary effect is to reduce fatigue - Negative side effects include insomnia, anxiety, and potential for addiction |
| Methamphetamine | - Stimulants that break down into amphetamine in the body, they block the reuptake of dopamine and increase its release in the synapse - Negative side effects include damage to various brain structures, frontal lobes, temporal lobes and the limbic system, also causes physical damage |
| Cocaine | - Stimulant derived from the leaves of the coca bush, it increases the - Negative side effects include paranoia, psychotic behaviour, and violence |
| Alcohol | - Produces its effect by activating GABA receptors, alcohol inhibits neural activity - Leads to less inhibition about various social behaviours, such as aggression and sexual arousal |
| Marijuana | - Could be classified as a stimulant, depressant, or hallucinogen, produces a relaxed mental state, an uplifted or contented mood, and some perceptual and cognitive distortions - Negative side effects include decreased reaction time, impaired motor coordination, impaired memory and recall of info |
| MDMA | - Produces an effect similar to stimulants, but also causes slight hallucination, is associated with less dopamine activity and more serotonin activity - Negative side effects include damage to brain regions, particularly the prefrontal cortex and the hippocampus |
| Tolerance | When a person needs to consume more of a substance to achieve the same subjective effect |
| Withdrawal | A physiological and psychological state characterised by feelings of anxiety, tension, and cravings for the addictive substance |
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