PSY290H5 Lecture Notes - Lecture 7: Inner Cell Mass, Neural Groove, Neural Crest
Document Summary
Identify a type of critical period in human development: Genie extremely neglected child that allowed scientists to test whether critical periods exist or not. Capacity for change becomes limited after critical period. Changes can occur into later years of our lives, the degree of changes is different though. Margaret mckinnon developed ptsd after airplane incident. Environmental event/experience that changes patterns of activity in the brain. Experiences do not affect all of us equally. Uses understanding to show that this is a physical change that occurs in the brain itself. Zygote sperm and egg together = one single cell that divides over and over again. Single layer structure called blastocyst (even though there is another layer inner cell mass). In the body, we have 200 different types of cells. These cells have to align themselves in functionally relevant ways (80-85 billion in the brain)
