Ch. 5.3 - Drugs

Question 1

psychoactive drugs

Answer 1

substances that affect thinking, behaviour, perception, and emotion

Question 2

short term effects of psychoactive drugs (6)

Answer 2

• agnostic or antagonistic effects
• amount of neurotransmitter released at synapse
• preventing reuptake
• blocking the receptor
• binding to the receptor in place of the neurotransmitter
• promote receptor formation/depletion

Question 3

nucleus accumbens

Answer 3

prime area of activation when a person engages in pleasurable/rewarding behaviour

Question 4

long term effects: tolerance (3)

Answer 4

• repeated use if a drug resets in a need for a higher dose to get the intended effect
• metabolic and cellular tolerance
• down regulation

Question 5

long term effects: physical dependence

Answer 5

need to take a drug to ward off unpleasant physical withdrawal

Question 6

long term effects: psychological dependence (2)

Answer 6

• need to take a drug to ward off negative emotions

- no physical symptoms

Question 7

anticipatory drug effects (2)

Answer 7

• experience with a drug changes response

- ex) marijuana

Question 8

context-dependent overdoses (2)

Answer 8

• rats given heroin injections in familiar or novel environments after building tolerance
• anticipatory drug response