Quiz 1

Question 1

What do the glial cells do

Answer 1

They play an important role in the migration of neurons, provide myeline, remove debris, supply oxygen, and hold neurons in place

Question 2

Neurogenisis

Answer 2

Creation of new neurons from stem cells

Question 3

When does neurogenesis take place

Answer 3

Mostly between 3rd and 15th week of prenatal development but occurs to a limited level even into adulthood

Question 4

Cell Migration

Answer 4

Migration of newly formed neurons from the ventricular or subventricular zone to their final home

Question 5

When does cell migration take place

Answer 5

About 4 weeks after conception to about 6 months after conception

Question 6

Synaptogenisis

Answer 6

Creation of connections between neurons

Question 7

When does Synaptogensis take place

Answer 7

Begins at about 20 weeks after conception and continues into early adulthood

Question 8

Synaptic Pruning

Answer 8

The loss of synapses due to lack of use or cell death

Question 9

When does synaptic pruning take place

Answer 9

From about age 2 until adolescence

Question 10

When does Myelination take place

Answer 10

From about 5 months postconception into adulthood

Question 11

Myelination

Answer 11

The formation of a fatty sheath on neuronal axons to facilitation conduction of electrical signals

Question 12

Experience-expectant

Answer 12

The brain adapts to the presence or absence of an experience that is typical of human experience

occurs during criticial period in development and is typical of almost everyone

Question 13

Experience-dependent plasticity

Answer 13

Individual differences in brain organization and structure develop from idiosyncratic differences in experience.

can occur throughout development

reflects individual differences in experience

Question 14

Babinski Reflex

Answer 14

toes moving when touching foot

Question 15

Startle/Moro Reflex

Answer 15

arms and legs extend and then rapidly brings arms together

Question 16

Rooting Reflex

Answer 16

Turn head and open mouth

Question 17

Sucking reflex

Answer 17

when touch roof of mouth

Question 18

Tonic neck reflex

Answer 18

turn head one way and arm streches the other way

Question 19

Dynamic Systems theory

Answer 19

reflexes change in result to multiple independent systems that develop on their own over time.

Question 20

What happens at 6 month in terms of cross-modal perception

Answer 20

infants can link how object feels to what it looks like, but only if they have touched it

Question 21

What happens at 12 months in terms of cross-modal perception

Answer 21

ability to transfer information from touch to vision, now can if they have only seen it

Question 22

Visual Preference

Answer 22

shows 2 images side by side. Time spent looking at each is recorded

Question 23

Habituation

Answer 23

repeatedly shown a visual stimuli, as stimulus becomes familiar looking time decreases

Question 24

Hearing Developmental Interference

Answer 24

exposure to intense noise (ie: background noise) can effect tuning of hair cells.
Too much exposure can interfere with meaningful sounds (moms voice)

Question 25

When does hearing structures develop

Answer 25

Starts at 20 weeks but not functional until 25 weeks gestation

Question 26

When does taste develop

Answer 26

taste buds starts at 8 weeks and and gustatory function starts at 14 weeks

Question 27

When does smell develop

Answer 27

receptors start forming at 9 weeks

Question 28

What was the conclusion of the visual cliff study

Answer 28

Most babies did not go off cliff because they had percieved depth by the time they were able to crawl

Question 29

When should babies roll over

Answer 29

4-5 months

Question 30

when should babies crawl

Answer 30

7 months

Question 31

when should babies walk

Answer 31

12-13 months

Question 32

when do babies cruise

Answer 32

10 months