PSY 213 1st Edition Lecture 7 Outline of Last Lecture I Prenatal Tests II Infertility and Reproductive Technology III Hazards to Prenatal Development IV Prenatal Care V Birth and the Postpartum Period VI Methods of Childbirth VII The Transition from Fetus to Newborn VIII Low Birth Weight and Preterm Infants Outline of Current Lecture I Height and weight II The brain III Sleep Current Lecture I Height and weight The average American newborn is 20 inches long and weighs 7 pounds Most of the newborns are 18 to 22 inches long and weigh between 5 and 10 pounds Grow about one inch per month during the first year By 2 years of age a Infants weigh appox 26 to 32 pounds These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute b Average 32 to 35 inches in height II The brain Contains tens of billions of nerve cells at birth Shaken baby syndrome Brain swelling and hemorrhaging a Hundreds of babies a year b Damage is irreversible Brain s development c Mapping the brain Brain has two halves Lateralization specialization of function in one hemisphere of the cerebra cortex or the other Start to see hand preference Speech grammar positive emotion left side of brain Metaphor and humor negative emotion right side of brain Early experience and the brain Children in deprived environment may have depressed brain activity Brain demonstrates both flexibility and resilience Experience expectance What the brain expects need language to learn language We re set up for these experience dependent unique experiences which the brain doesn t t expect They re supplemental experiences III Sleep Typical newborn sleeps 16 to 17 hours a day Infant sleep related problem Night time waking REM sleep Rapid eye movement sleep a Infants spend about half of their sleep in REM sleep b Often begin sleep cycle with REM sleep rather then non REM sleep
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