BISC 230 Class Notes

BISC 230 Class Notes - Spring 2008 BISC 230 January 15,...

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Spring 2008 BISC 230 January 15, 2008 Kolat Edition 8 or 9 Exams Lab quizzes Presentation Term paper Final Brain: -Gave staggering amount of money to research the brain -In neuroscience “I don’t know” is often the answer to many deep questions -The Internet -Social relevance (extraordinary) -88% of families will have a member that has mental illness -The worst diseases are communicative diseases—blind, deaf 290 billion dollars a year are spent (communicative diseases) -Stroke is a major killer (related to the brain) & Alzheimer’s -% of body weight that is your brain: 2-2.5% -The brain uses 10 times more energy than we expect it to— when you are asleep your brain starts working more -How do we think? When you think a thought you start out with a brain (big part of brain in the cerebrum; long tube is the spinal cord—a piece of nervous tissue that moves through the bones) The spinal cord comes up to the region of the brain and becomes larger (Medulla) -The cerebellum is the little brain. Human beings have all sorts of curves; mountains in between in the grooves gyres -The skull provides protection; layer of tissue of the outside is called the cortex (the cortex in humans is about half the size of the human brain) -The cerebral cortex causes the grooves **Input brain output -Input can come from many things Senses: sight, taste, vision, smell, balance, pressure, pain, sense of time, hearing, sensitivity to light
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-Output goes to the muscles, all behavior we have goes to the muscles -Behavior: sophisticated percolating around -The place of the brain in which we call the integration is largely called the cerebral cortex -We integrate better than any other animal Other parts of the brain you need to know about: in the middle of the cerebrum (large part) is the thalamus -The incoming sensory stuff goes to the thalamus (sends information and gets information back) Hyper thalamus (below the thalamus) Reductionism: our most powerful tool (example: putting a hose on a faucet) -Reduce a bigger problem to a series of smaller problems, solve the little Pieces -Try to put little pieces together to solve the big problem -Tremendously important part of science Emergent properties: they are important in how the brain functions- you can do something with it to make something
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BISC 230 Class Notes - Spring 2008 BISC 230 January 15,...

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