| BRAIN DEVELOPMENT IN INFANCY |
| Neurons and Synapses |
| Sequential Development of the Brain |
| Hemispheric Specialization |
| The Brain's Plasticity |
| |
| MOTOR DEVELOPMENT |
| Reaching and Grasping |
| Locomotion |
| How Locomotion May Affect Other Aspects of Development |
| The Role of Experience and Culture |
| |
| PHYSICAL GROWTH |
| Do Genes Affect Height and Weight? |
| The Influence of Environmental Factors |
| People Are Growing Taller |
| Are We Growing Heavier? Obesity and Eating Disorders |
| |
| SEXUAL MATURATION |
| The Onset of Sexual Maturity |
| What Determines the Timing of Puberty? |
| The Effects of Early and Late Maturation |
| |
| SUMMARY |