Lecture 7 (Thursday, September 20, 2012)
To what extent are sensory skills adult – like at birth and infancy?
Three Skills, Different Acuities
Why might different skills be more or less developed at birth?
20/20 is ‘average vision,’ you can see something at 20 feet that the average person can also see at 20
20/200 to 20/400 newborn vision
By 6 months of age, it is good
By 2 years of age, 20/20 vision
Babies don’t need to see at distances, they just have to see at close range like their mom’s face
Fantz (1961) ▯visual acuity preference technique
Babies like relatively complex displays rather than simple displays
If they prefer looking at the complex design, that means that they can see it
Fantz used black and white lines, progressively getting smaller until the baby could no longer tell the
difference between the plain grey design and the thin black lines
This was how he measured their vision
Tracking = being able to pick out a moving object and watch it, which eventually develop