Chapter 8 - Chapter 8 Early Childhood Physical Development...

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Chapter 8: Early Childhood- Physical Development Truth or Fiction? Some children are left-brained and others are right-brained (F) Sedentary parents are more likely to have “couch potatoes” for children (T) Julius Caesar, Michelangelo, Tom Cruise, and Oprah have something in common? (Hint: They don’t all have book clubs.) (T) A disproportionately high percentage of math whizzes are left-handed (T) Some diseases are normal (T) Infections are the most common cause of death among children in the United States It is dangerous to awaken a sleepwalker (F) Competent parents toilet train their children by their second birthday (F) Growth Patterns (height and weight) What Changes Occur in Height and Weight During Early Childhood? o Growth rate slows (especially compared to first 2 years of life) 2 to 3 inches per year 4 to 6 pounds per year Lose some of that “baby fat” and become increasingly slender o Individual variation As group, boys are slightly taller and heavier Growth Parents (development of the brain) How Does the Brain Develop During Early Childhood? o Brain develops more quickly than any other organ in early childhood By age 2, brain has attained 75% of adult weight By age 5, brain has attained 90% of adult weight o Rapid growth in weight due to myelination of nerve endings (from Chapter 5) o Visual skills Improved attention and visual processing skills o Specialization of hemispheres What Does It Mean to Be Left-brained or Right-brained? o Notion that the hemispheres of the brain are involved in different kinds of intellectual and emotional functions and responses o Left-brained Logical, problem solving, language, and mathematical computations o Right- brained Visual-spacial functions, recognition of faces, discrimination of color, aesthetic and emotional responses, understanding metaphors, and creative mathematical reasoning o Functions actually overlap to some degree; not split up as precisely as popularly believed
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Two hemispheres are aided in cooperation by the myelination of
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