chapter 3

Question 1

_____________________ result(s) in a proliferation of neurons through the process of cell division.

Answer 1

neurogenesis

Question 2

Neurons communicate with one another at

Answer 2

dentrites

Question 3

The fact that rats raised in cages with toys have more dendritic spines and more synapses per neuron than rats raised in cages without this stimulation is an example of

Answer 3

experience-dependent plasticity.

Question 4

Which of the following is true about brain development?

Answer 4

Once cells are formed they migrate and create connections between them.

Question 5

During each infants’ first year, they form a bond with a caregiver, with the exception of infants who do not have a caregiver (such as the infants raised in Romanian orphanages). Typically, all infants have a caregiver. This is an example of _______ development.

Answer 5

experience-expectant

Question 6

When does Myelination begin?

Answer 6

Before birth

Question 7

Which of the following individuals would be most likely to recover from traumatic brain injury?

Answer 7

a small child

Question 8

As a teenager, Leonard often acted on his impulses and played practical jokes on his classmates. Now, at age 21, Leonard no longer engages in this kind of behavior. Which factor BEST explains this change in his behavior?

Answer 8

the maturing of the dorsolateral prefrontal cortex

Question 9

Jakob is given a tricycle when he is 2 years old. The parts of his brain that are used when he rides his new trike are strengthened. He develops better motor coordination than his friend Alexa, who is not given a trike. This is an example of _____________ development.

Answer 9

experience-dependent

Question 10

When you plan ahead to decide how you will study for midterms, which lobe of the cerebral cortex is primarily involved?

Answer 10

frontal

Question 11

Because the brain adapts to the environment and different experiences,

Answer 11

less information needs to be encoded in the genes.