PSY 1102 Lecture : PSY1102

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1102
• Professor: Najwa Haddad

Document Summary

Developmental psychology is the study of how humans change from the moment of conception until the moment of death. They study how we change physically, emotionally, socially, cognitively, etc. Patterns of change begin at conception and change throughout the life span. Over 200 million sperms are released and are going to rush toward the egg. It takes several days to get to the egg, many of them die, but many of them get to the egg and are going to try to penetrate the egg. The egg releases a chemical to prevent other sperm from penetrating. Only head of sperm gets into egg, tail falls off. In half a day, sperm fertilizes the egg to form 46 chromosomes. Gestation period: the length of the pregnancy, moment of conception to moment of birth. The first stage is the germinal stage, which lasts 10-14 days.