synaptic plasticity DP 3

Question 1

synaptic plasticity

Answer 1

the ability of synaptic connections to modify and change from experience

Question 2

mechanism of plasticity sprouting

Answer 2

dendrites or axons can sprout new growth in response to experience, allows for new synapses to form

Question 3

mechanism of plasticity rerouting

Answer 3

the ability of a neuron that is connected to a damaged neuron
to create an alternative synaptic connection with an undamaged neuron

Question 4

mechanism of plasticity pruning

Answer 4

synaptic connections that are not adequately activated can be lost or removed

Question 5

long term potentiation

Answer 5

strengthening of synapses in response to repeated stimulation

Question 6

long term potentiation structural changes

Answer 6

• increased number of receptor sites on dendrites on post synaptic neuron
• dendrite growth due to sprouting
• increased number of synaptic connection between 2 neurons

Question 7

long term depression

Answer 7

repeated, weakened stimulation signals to the presynaptic neuron to reduce the number of neurotransmitter and to the post synaptic neuron to reduce receptor site

Question 8

long term depression structural changes

Answer 8

• Decreased number of receptor sites on dendrites of post-synaptic neurons
• Pruning of dendrites
• Loss of synaptic connections between two neurons