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Study+Guide+Test+2[1] with answers

Study+Guide+Test+2[1] with answers - DEP3053 Exam 2 Study...

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DEP3053 Exam 2 Study Questions Spring 2011 Exam 2: Wednesday, March 2, 2011-bring a #2 pencil Exam Notes: *All lecture material is important. Be sure to review text-related material that corresponds to lectures & text material identified in class (and study guide) but not covered in lecture. The topics and questions listed below reflect all the topics/issues that you are responsible for. You should also study those sections of the book that overlap with the notes, but emphasis will be given to the notes An asterick* means that this material was not covered in class but you are responsible for it—For these *text book sections focus on terms in bold and major concepts and findings. L ist of Topics Covered Chapter 5 Infancy N ewborn characteristics Relexes: primitive vs. survival o Primitive disappear around 3-4 months of age and become voluntary (not used often); include Moro (startle), Palmar, and stepping o Survival carry on throughout life and include breathing, swallowing, and sucking What are the different states of alertness and how do they change developmentally? o 1) Sleep – 16-18 hrs per day for first few days, then 14-15 hrs per day around 4- 6 weeks o 2) Irregular sleep – eyes move under closed eyelids, breathing may be irregular o 3) Drowsiness – baby is falling asleep or waking up, breathing regular but rapid o 4) Crying – Peak at 2 hrs per day around 3 months, 1 hr per day around 1 year; use crying for discomfort at first, then intentional communication by 8 months (know that someone will come help) shift eye gaze from goal to person who can achieve goal o 5) Alert activity – baby’s eyes are open, irregular breathing; various bursts of diffuse motor activity and fussiness o 6) Alert Inactivity- wide open and bright eyes, exploring environment; regular breathing and inactive body How does sleep ( rem vs. non-rem) change? o Newborns = 50% REM sleep, 6 months = 25-30% REM sleep; REM sleep occurs because of autostimulation way of stimulating brain function and activity What are the procedures for measuring sensation and perception ?
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o 1) Preference method o 2) Habituation-recovery o 3) Method of Evoked Potentials (change in patterning of brain waves indicates the infant detects a stimulus sensation) o 4) High-Amplitude Sucking How does habituation/dishabituation(recovery) and preferential looking operate? o 1) Habituation-recovery: measures changes in attention by seeing what infants can discriminate (habituation = attention decreases, recovery = attention increases) Increase look time for interesting object High Aptitude Sucking: sucking rate increases for interest in an object Heart rate: HR decreases for interesting object o Preferential-looking: 2 stimuli presented simultaneously, see which one infant looks at longer (which they prefer); no preference may still be able to discriminate w/o a preference or may not be able to discriminate Limited to studying vision only How well do infants see and hear? Do they perceive faces and objects?
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