U4-AOS1-learning

Question 1

what is developmental plasticity?

Answer 1

readers to the changes in neurons and synaptic connections that occur as a result of environmental interactions and learning experiences during growth and developmental

Question 2

what are the 5 five stages of developmental plasticity?

Answer 2

1) . profileration
2) . migration
3) . circuit formation
4) . circuit pruning
5) . myelination

Question 3

what is profileration?

Answer 3

is the process where the unborn baby’s cells divide and multiply

Question 4

what is migration?

Answer 4

newly formed neurons more outwards to their destined location. the role a particular neuron might have is determined by where it is located at its time of formation.

Question 5

what is circuit formation?

Answer 5

circuit formation occurs when the axons of new neurons grow out to target cells and form synapses with them.

eg). axon of motor neurons grow to the spinal cord where the neurons form synapses with other neurons.

Question 6

what is circuit pruning?

Answer 6

elimination of excess neurons and synapses that are not being used and have not established a connection with target cells.

Question 7

what is myelination?

Answer 7

axon of the neurons become covered in myelin (white fatty substance that increases rate of electrical activity)

Question 8

what is adaptive plasticity?

Answer 8

the ability of neurons to alter synapses to suit environmental conditions when learning something new or when relearning something after brain trauma.

Question 9

stage 1 of adaptive plasticity?

Answer 9

enables adjustment due to experience

Question 10

stage 2 of adaptive plasticity?

Answer 10

to compensate for lost function in the event of brain damage.

Question 11

what is brain plasticity?

Answer 11

refers to the ability of the brain to change its structure or function in response to stimulation from the environment.