September 12, 12
PSYCH 100 Lecture 1 Wednesday
1. History, Methods, Health, Mental Disorders, and Treatment
2. Nervous ststem, Sensation and Perception, Learning and Memory
3. Language, Intelligence, Reasoning, Social and Cognitive Development
4. *last module
Hubel and Wiesel’s kittens
neuroscientists that figured out how the visual cortex develops. What single cells
responded to a bar of light on the screen. Cells that fire only when the bar of light
is at a certain angle or moving in a certain direction.
What would happen if a newborn cat only got information from one eye. Depth
perception is disturbed. What happens to the part of the brain that doesn’t get
used? The part of their brain that would normally register didn’t really develop.
The recovery of their vision was delayed.
How long they go without stimulation for that eye, even if that vision is restored
later on that part of the brain will never develop fully. So it depends how long we
go without binocular vision we don’t fully develop. We need to intervene earlier if
we find a child’s vision doesn’t converge. So there is a sensitive or critical period.
The Romanian Orphans
1967 A dictator had a pronatalist policy (belief that promotes human