Drug and Addiction Flashcards
What happens if there is no reuptake?
You have a lingering effect of that neurotransmitter in the synapse
Depending in the neurotransmitter, this could have various effects
What is a drug?
Chemical or mixture of chemicals that alters physiological functions, structure and behaviour
What are psychoactive drugs?
give rise to feelings of euphoria and altered perceptions
What are the 4 categories of psychoactive drugs?
Depressants
Stimulants
Opiates
Hallucinogens
What are depressants?
Slow activity in the central and peripheral NS
What are stimulants?
Speed activity in the central and peripheral NS
What are opiates?
Powerful painkillers that also provide feelings of extreme well-being , pleasure and calm
What are hallucinogens?
Alter perceptions to the point of creating hallucinations
What is euphoria?
An enhanced sense of pleasure, excitement and well-being
What are antagonists?
Drugs that bind to the same receptors as naturally occuring brain chemicals to block their action
What are agonists?
Drugs that bind to receptors to mimic the effects of the neurotransmitters that naturally bind to it
What are inverse agonists?
Drugs that bind to neurotransmitter receptors but have the opposite effect of the neurotransmitter
What are reuptake inhibitors?
Drugs that inhibit the reuptake of a neurotransmitter by the neuron that released it
What is drug abuse?
Use of drugs in ways that cause physical and/or physiological harm to themselves or to others who are affected by their behaviour
What is drug tolerance?
the phenomenon by which a person needs to take increasingly large amounts of a drug to have the same effect
What are the 3 types of tolerance?
Dispositional, behavioural, and functional