lecture 11 sleep

lecture 11 sleep - 10/27/2008 Lecture 11: Sleep Overview 1....

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10/27/2008 1 Lecture 11: Sleep Overview 1. Biological rhythms 2. Brain’s internal clock 3. How is sleep studied in lab 4. Stages of sleep 5 .Functions of sleep Announcements Homework 5 is now due on November 3 rd . Need to provide me with the abstract (summary) of the article that you are going to do for your paper and the full details of the article (i.e., journal name, authors, publication date, title of article). You do no have to write an abstract, you give me the abstract of the journal article that you are going to do your paper on. Remember to choose a journal article from one of the following topics: 1) sleep, 2) biology of eating, 3) learning and memory, 4) addiction, 5) stress, 6) any psychiatric disorder, 7) effects of a psychoactive drug on behavior. Make sure journal article is related to biological psychology. Make sure you get a journal article AND NOT a review article. If it does not have these sections: Introduction, Methods, Results, Discussion then it is probably not a primary journal article.
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10/27/2008 2 Print and bring to class on Nov 5th Choose wisely. Simple and interesting We spend a great deal of time sleeping Most of us sleep 175,000 hours in our lifetime 7,291 days Must serve an 243 months 20 years important function H d k How do we know when to sleep?
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10/27/2008 3 Biological Rhythms Biological rhythms are regular fluctuations in bodily processes. Examples include a 90 minute cycle of activity and drowsiness in humans, a 28 day menstrual cycle in females, and mood changes across the seasons (Winter vs Spring). There are biological rhythms that cause us to sleep and wake at certain times. Circadian cycle —A change in biological and behavioral functioning that occurs over a 24 hour period . Circadian rhythm —The intrinsic process that controls the circadian cycle. Behavioral and Biological Changes in Two 24 Hour Periods
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10/27/2008 4 The Suprachiasmatic Nucleus of the hypothalamus controls the circadian cycle Shows circadian cycles of electrical and biochemical activity. ¾ High activity during the day and low during the night (i.e., keeps track of day and night) – internal clock.
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lecture 11 sleep - 10/27/2008 Lecture 11: Sleep Overview 1....

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