Brain and Behaviour

Serotonin is a neurotransmitter that is associated with:

• Mood regulation and sleep

• Muscle movement and coordination

• Memory formation and learning
  

• 1. Pain perception and pleasure

Excitatory neurotransmitters:

• Increase the likelihood of a neuron firing

• Decrease the likelihood of a neuron firing

• Inhibit the release of other neurotransmitters

• Promote the reabsorption of neurotransmitters

Which term refers to a substance that enhances or mimics the effects of a neurotransmitter?

• Reuptake

• Synapse

• Agonist

• Antagonist

An antagonist is a substance that:

• 1. Increases the release of neurotransmitters

• Promotes the reuptake of neurotransmitters

• Enhances or mimics the effects of a neurotransmitter

• Blocks or inhibits the effects of a neurotransmitter

Which imaging technique measures brain activity by detecting changes in blood flow and oxygen levels?

• fMRI

• MRI

• PET

• EEG

Neurotransmission refers to the process of:

• Synaptic Pruning

• Communication between neurons

• Production of neurotransmitters

• Formation of neural networks

What is the name of the small gap between the presynaptic and postsynaptic neurons?

• Dendritic spine

• Axon terminal

• Synapse

• Myelin sheath

What happens at the presynaptic neuron during neurotransmission?

• Integration of incoming signals

• Generation of an action potential

• Release of neurotransmitters into the synapse

• Reception of neurotransmitters from the postsynaptic neuron

The Passamonti study investigated the effects of acute tryptophan depletion on the connectivity between which two brain regions?

• PFC and hippocampus

• thalamus and amygdala

• amygdala and hippocampus

• PFC and amygdala

Tryptophan is an essential amino acid that is a precursor for the synthesis of _______ (neurotransmitter)?