PSY 001 Lecture Notes - Lecture 19: Primitive Reflexes, Prenatal Development, Miscarriage

• School: College of The Sequoias
• Department: Psychology (PSY)
• Course: PSY 001
• Professor: Dewin

Document Summary

Teratogens: environmental factors that can cause damage during prenatal: ex: legal and illegal drugs, alcohol, cigarettes, diseases and malnutrition, x-rays, stress, fathers damage sperm (chemicals) The brain develops faster than any other body part, 25% size at birth, full adult brain will not be reached until 22 years of age. 75% at 2 years old 90% at 5 years. Motor development- newborn"s initial motor skills are reflexes: ex: sucking, swallowing. Coughing, blinking, rooting reflex, pain, cloth from face. With in one year, infant progresses to voluntary skills: ex: lift head, roll, crawl, even walk, etc) During first year, maturation is primary reason for development; environmental factors minimal. Touch taste and smell: high sense of touch and pain (most developed, good sense of smell and taste (sweet, salty, bitter, and prefer mother"s milk) Hearing: functional, not fully developed, fetus (last trimester)-hear sounds outside the womb- newborns recognize certain voices, music.