SciAmerhomework020309

SciAmerhomework020309 - Scientific American Homework due...

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Scientific American Homework due 020309 Name _____________________________ Siegel, J. (2003). Why do we sleep ? Scientific American , pp 92-97. 1. What was the overall conclusion of why we sleep in the article’s introduction 2. Although sleep is hard to define, it is easy to recognize in most species. What are it’s usual characteristics? How are marine mammals and birds exceptions? 3. What type of sleep was discovered by Kleitman and Aserinsky? What was their unexpected finding concerning the level of brain activity during sleep. 4. Describe how the patterns of brain activity in the forebrain and brain stem differ between REM sleep and non-REM sleep (include cortical EEG and the brain areas that activate REM and non-REM sleep). Although different terminology is used, relate the REM sleep-on cells and the non-REM sleep on cells to brain areas that were discussed in class. 5. What two things are suggested to keep us from acting out our dreams? 6.
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SciAmerhomework020309 - Scientific American Homework due...

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