Transmission

Question 1

Neurons

Answer 1

• building blocks of the CNS
• receives, process and transmits information throughout the body
• 86 billion in the human brain
• cognition, sensory processing and motor control

Question 2

Neurotransmitters

Answer 2

chemical messengers that transmit signals between neurons to other neurons across a synaptic cleft
- dopamine
- noradrenalin
- serotonin
- acetylcholine

Question 3

drugs and synaptic transmission

Answer 3

+ = agonist - binding to receptor and activating mimicking neurotransmitter
- = antagonist - bind and not activate, blocking the neurotransmitter

Question 4

neurochemicals in addiction

Answer 4

Gerra et al
PRL - prolactin
fenfluramine promotes 5-HT release

Question 5

evidence of psychology (stress)

Answer 5

Miczek and Mutchsler
- rats trained to respond to cocaine or food reward
- social stress - 60 mins intruder in cage of resident rat
- selective effect of social stress on cocaine - reinforcing responding
- clinical reports = role of stressful life events in relapse BUT… correlational