Psychology 1000 Chapter Notes - Chapter 1: Preterm Birth, Toilet Training, Secondary Sex Characteristic

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Shelley Cross- Mellor

Document Summary

People of different ages all tested at the same point in time e. g. test language abilities of 10, 20, 30, and 40 year olds. Compare the score of each cohort (different age group) to see if abilities change as we age. Repeating the test for the same cohort as they grow older or age e. g. test language abilities of 10 year old, then test the same people. Compare scores to see if they changes as people age. Combines previous approaches: test multiple cohorts, repeatedly over time. e. g. test language abilities of 10, 20, and 30 year olds, then test the same people 10, 20, 30 year later. Now called and embryo (no longer called a zygote) Umbilical cord: carries nutrients, oxygen to embryo and waste products away from embryo. 3rd month lungs expand/contract; sex visible on ultrasound. 2nd trimester mother feels movement; brain weight increases massively. 3rd trimester cortex enlarges; fetus spends much more time awake; eyes open.