040108 - April 1, 2008 Slide 1: Last time we discussed four...

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April 1, 2008 Slide 1: Last time we discussed four lobes, divided based on major sulci/fissures/folds in the brain. Central sulcus separates front from parietal lobe. Lateral fissure seps frontal lobe from temporal lobe. Parieto-occipital sulcus Calcarine sulcus In past, Able to study areas bc of major accidents from past. 5: Phineas Gage’s accident told researchers that in addn to sensory, more complicated sophisticated aspects of behavior (plan for future, make decisions, inhibit immediate goals) are localized in specific regions. This was good case that changed neuroscience. 6: Local damage can leave intact sensory and motor capabilities but change personalit by making him incapable of complex human being. 7: Damage to right parietal lobe is called Nicolette (?.): lose ability to allocate attn to left side of world. Intelligence intact but awareness of that part of world is gone. 8: Two neurotechniques to study brain: 1) Damage to right parietal lobe is worse than damage to left bc of having activity on both sides of brain in right parietal. Left visual controlled only by Right Parietal. - Asymmetry and contralateral; Right visual rep by right and left while Left visual rep by Right only. 2) Work with primates (can be trained to do various tasks; one or other side of the world) and other animals and study using electrodes. 10: You can see response to same stimulus but diff bc of response. Same physical stimulus but not irrevelvant to animal’s behavior vs. same physical stimulus and animal has to perform task. At retinal level, same response (move eyes to object) but at parietal level, different response. 11: Penfield was first to make systematic maps of somatosensory cortex and motor cortex, and during surgeries, patient awake. He stimulates diff portions of brain to find how they’re mapped. Conversation w/ patient while stimulating temporal lobe: memories with very same sounds and scene. He tapped into her long-term memory. The temporal lobe impt for long-term memory. This technique allows us to ask more questions about the purpose of cortex.
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12: Interview w/ stimulation woman and Penfield 13: “neglect syndrome” is inability to see other side of visual field. Purpose was to tell importance of cortex and how it works. Now we need to know
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This note was uploaded on 04/10/2008 for the course BIO 365R taught by Professor Draper during the Spring '08 term at University of Texas at Austin.

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040108 - April 1, 2008 Slide 1: Last time we discussed four...

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