1. Psy 203 Chapter 4

2. Infancy and Toddlerhood Body Size Weighs 7 ponuds 20 inches in length Growth is fast 5 months weight doubles (15 pounds) 1 st year weight triples to 22 pounds 2 nd year 4 times Baby fat Girls shorter and lighter/fat-muscle

3. Body size con’t Growth norm (Asian, African American) Skeleton age (African Amer.-Caucasian) Skeleton age (Girls/Boys)4-6

4. Brain Development Infancy and Toddlerhood Brain Growth Environmental Stimulation Neurons Cerebral Cortex Regions of Cortex Lateralization Melatonin

5. Motor Development Infancy and Toddlerhood Gross motor Fine motor Cephalocaudal Proximodistal Environmental influences Ulnar grasp Pincer grasp

6. Perceptual Development Hearing- 3 days/6 months Vision- Newborn/2 months

7. Advantages for Breast-feeding Nutrients Immunity Low cost No preparation Shrink the uterus Burn 500 calories a day Easy to digest Provide direct skin contact Lower rates for Ovarian Cancer

8. Disadvantages for Breast-feeding No freedom Feed every 11/2 to 2 hours Family members may feel left out

9. Advantages of Bottle-feeding Freedom How much baby is eating Medication Eat every 4 hours

10. Disadvantages of Bottle-feeding Expensive Lack of antibodies Requires preparation