perceptual development

Question 1

sensory capacities

Answer 1

vision and hearing

Question 2

hearing

Answer 2

ways we translate and interpret sound

Question 3

3 parts of the ear

Answer 3

outer - pinna - collect info in a wave format through the ear canal
middle - ear drum/tympanic membrane - translated into vibration - into the 3 tiny bones with stapes being the smallest
inner ear - vestibular system- ability to balance - cochlear structure through diff hair like receptors into nerve impulse

Question 4

hair cells of the inner ear

Answer 4

auditory nerve - receive vibration then nervous impulse then auditory nerve then interpreted by the brain

Question 5

why do infants organize sounds

Answer 5

identify location

recognize whos saying what -

Question 6

if the hearing of an infant is delayed

Answer 6

delayed development?

Question 7

eyeball development is

Answer 7

delayed

Question 8

iris 4

Answer 8

coloured part of the eye
pigments are from genetics
muscles to control to opening of the pupil
divides the front and back chamber

Question 9

pupil 3

Answer 9

how much light comes in and gets reflected - reflectively opens and closes
external forms the front chamber

Question 10

2 physical protections of the eye

Answer 10

eyelashes and eyelids

Question 11

3 types of tears

Answer 11

basal - natural - dry or dirty we open and close eyelids to clean
reflex - large foreign objects that we try to wash out - a lot
psychic - emotions and crying - psych stress - more voluntary

Question 12

internal structures of the eye 5

Answer 12

Normal macula 
focea centralis 
optic nerve 
retinal arteries and veins 
rods and cones

Question 13

normal macula

Answer 13

area on retina with large concentration with retinal structures - preferred area of visual concentration 0 large range of peripheral vision

Question 14

focea centralis

Answer 14

in macula with highest concentration of cones

Question 15

optic nerve

Answer 15

blind spot as there is no retinal lining so cant interpret light - doesnt uslly get light

Question 16

retinal arteries and veins -

Answer 16

lines 7/10 area of the back of the eye ball

Question 17

rods

Answer 17

light and dark

Question 18

cones

Answer 18

colour - greens reds blues, everything else depends on how they interact with light
everyone is different and there is a gender difference

Question 19

vision change in the first 6m

Answer 19

20/600 to 20/100

Question 20

vision at 11m

Answer 20

near adult level, start of gross motor movements

Question 21

brain development

Answer 21

micro development of brain then macro - lobes, hemisphere, lateralization

Question 22

motor development needs

Answer 22

vision and hearing for localization of sound and vision

Question 23

CNS and PNS develop

Answer 23

together when we interact with the world - afferent and efferent

Question 24

gross motor skills

Answer 24

large muscle activities

sequence is standard - chin up, sit with support, walk with assistance

Question 25

age of stage of motor development depends on

Answer 25

health of child
level of maturation - development of muscles and NS
opportunity

Question 26

FIne motor skills 2

Answer 26

finely tuned movements

little control in infancy

Question 27

progression to pincer grasp

Answer 27

prereaching - swipingwith entire arm - development of biger muscles
ulnar grasp - palm and all fingers
pincer grasp - thumb and fingers then first two fingers -

Question 28

what do we grab?

Answer 28

objects that we can see and are attracted to

Question 29

how do we find out about vision in babies

Answer 29

visual tracking

Question 30

cornea

Answer 30

change angle of light

Question 31

lens

Answer 31

refractory material to change angle of light

Question 32

sclera

Answer 32

attachment for eye muscle - protect internal structure of the eye

Question 33

only site of nerve exposure

Answer 33

eyeball