Lecture 2- face perception Flashcards
(35 cards)
visual acuity
define visual acuity
measure how clearly a person can see.
visual acuity is poor…
but…
- at birth
- bur rpaid increase in first 6 months and by 1yr near adults level.
first month in visual scanning infants focus on…
the edges of an object
visual scanning
by 2 months infants can…
focus on internal features
colour vision
newborns are able to distinguish between what colours
white and red.
what is an example of a preference test?
Fantz- tiem psent looking at different patterns- comparison
colour vision
around what month are newborns able to look at bold and bright colours
1 month.
what is a preference test?
present the newborn 2 stimuli at the same time and emasure which one the infant looks the longest at.
what is a habituation test?
show child over and over the same stimulus until they get bored and then another stimuli- if they are interested then it suggests that they can see a difference in the images.
conditioning as a test
reward target behaviour e.g. sucking, when tey habituate they may decrease sucking but if sucking increases then they can distinguish between two images.
what is the nativism approach to facial recognition?
the special perceptual process is organised at birth
empirical view of facial recognition
perceive faces as they perceive other objects it is just specialised due to experience.
what did Maurer and Barrera add to Fantz’s study
added controls for complexity
what did Goren et al change from Fantz original study
used moving stimuli stimuli instead of static so they moved the paddle in an arc over the infants field
findings
findings of goren et al’s study?
the infants did in fact track the schemtatic face over the other two even though it was moving.
johnson et al
johnson et al studied… and found that by…
studied newborns and found that by 3 months they could no longer track.
what are the 2 different processes in the 2 process model?
CONSPEC and CONLERN
definition
define CONSPEC
each system biases infants to orient towards faces
define CONLERN
take over by a more mature system which then leads to more pecise recognition later on in life.
Pascalis et al found that…
preference for mothers face is removed when infant can not longe see the hairline.
Tutari et al backed up Pascalis et al with what sudy
showed infants images of internal features of their mothers faces and exterior features of their mothers face.
Found that newborns recognised the outer features
what is meant by the conept of a narrowing perceptual window
as we get older our face percpetual skills become specialised.
what study from Pascalis et al provided evidence for a narowing percpetual window
found that at 6m infants could discriminate between monkey and human faces and then by 9m they could only discriminate between human faces.
quinn et al discovered what about discrimination and recongition in infants
effect of exposure to primary caregiver- so if they were female infants preferred female faces but if the caregiver was a male than infants preferred male faces
