Development of Perception Flashcards
What three skin modality senses do neonates have?
- touch
- temperature
- pain
In what order (greatest to least) are neonates’ development of senses?
- skin modality
- chemosensation (taste & smell)
- audition
- vision
Where do neonates’ taste preferences come from?
flavoring of amniotic fluid in utero
What did the carrot and water experiment show in infants and their mothers?
- mothers drank carrot juice in last trimester of pregnancy: infants liked carrot-flavored cereal
- mothers drank carrot juice during first months of lactation: infants did not like carrot-flavored cereal as much
- mothers drank water in both last trimester and first months of lactation: infants did not like carrot-flavored cereal
True or False:
Infants’ sense of audition is not well developed.
False
It is relatively well developed.
can recognize voices
True or False:
Infants have good vision.
False
Visual acuity is very bad.
What is perceptual completion?
an optical illusion in which a boundary, color, texture, light, or object is seen where one does not acctually exist
our ability to “fill in the gaps”
What experiment studied infants’ perceptual completion ability?
the occluded rod experiment
What mechanism is used in the experiment to study infants’ perceptual completion?
habituation
Rod C: Complete rod
Rod D: Two separate rod pieces
If infants understand perceptual completion, they would prefer to look at ____.
Rod D
Rod C: Complete rod
Rod D: Two separate rod pieces
If infants do not understand perceptual completion, they would prefer to look at ____.
N/A
no preference
Rod A: static occluded rod
Rod B: moving occluded rod
Rod C: complete unoccluded rod
Rod D: two separate rod pieces unoccluded
4-month-olds will show no preference for C or D if habituated to ____.
Rod A
Rod A: static occluded rod
Rod B: moving occluded rod
Rod C: complete unoccluded rod
Rod D: two separate rod pieces unoccluded
4-month-olds will show a preference for ____ if habituated to B.
Rod D
What dimension of visual stimuli appears to be most salient to infants?
movement
What is the mechanism underlying the development of perceptual completion?
eye tracking
Vertical scanners do/do not have perceptual completion.
do not
looking up and down at the two pieces
Horizontal scanners do/do not have perceptual completion.
do
looking at one rod
What is the mechanism that allows infants to efficiently eye track the rods?
efficient visual attention
What is efficient visual attention?
targeted visual exploration
How do we develop efficient visual attention?
brain maturation and increasing control of oculomotor behavior
In what order to babies learn how to sit?
- laying down
- tripod sitter
- independent sitter
What experiment studied infants’ 3D object completion in correlation with sitting ability?
split infants into three groups (none, tripod, independent) and tracked interactions with toy
What did the results of the 3D object completion experiment find?
independent sitters had the most interactions with toys
Why did the laying down infant group have the least interactions with toys?
they have both hands to observe the toy, but it’s hard to see it from laying down
