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PSYCH 202 University of Washington 2016 / DAY 1 NOTES

by: Chi Tran

PSYCH 202 University of Washington 2016 / DAY 1 NOTES Psych 202

Marketplace > University of Washington > Psychology > Psych 202 > PSYCH 202 University of Washington 2016 DAY 1 NOTES
Chi Tran
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About this Document

These notes include slide information and what Dr. Graham talked about in lecture
Kathleen Lauren Graham
Class Notes
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This 2 page Class Notes was uploaded by Chi Tran on Saturday October 1, 2016. The Class Notes belongs to Psych 202 at University of Washington taught by Kathleen Lauren Graham in Fall 2016. Since its upload, it has received 9 views. For similar materials see Biopsychology in Psychology at University of Washington.


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Date Created: 10/01/16
Neurons / 9.29.16 Thursday, September 29, 20161:30 PM • Phrenology: the "quasi -scientific fad of the early 1900s" ○ Certain part of brain is responsible for a certain function ○ "Localization" is WRONG ○ Lesion studies by a French physiologist revealed surprising recovery of function by the animals ○ Jean Florens concluded most brain functions are NOT localized ○ Whole brain contribute to animmal ability to learn and animal • Alternate explanation for his observation ○ Compensation via neuroplasticity § Region A can take over region X if reason X got damage ○ Many function are localized but not ALL § Broca's Area □ Studied patient who has difficulties creating words □ All these patient has damage in the Broca's Area § Wernicke's Area □ People who has difficulties understanding meaningful words □ They sound like they are speakig fluently but they're not making sense □ Damage in this part ○ Brain has plasticity ○ Neuroplasticity is not guaranteed • Neural Communication ○ How do neurons communicate and create our conscious experience? ○ Can only see neurons through special stains : GOLGI STAIN § Highlight the extend of the whole neurons without staining the other neurons around them ○ Santiago Ramon y Cajal Careful and extensive anatomical work § § Used Golgi's staining method but observed that neurons were separated entities ○ Cajal's "Neuron Doctrine" § Neurons are strutural and functional units of the nervous system § Discrete bodies § Used Golgi's staining method but observed that neurons were separated entities ○ Cajal's "Neuron Doctrine" § Neurons are strutural and functional units of the nervous system § Discrete bodies Contains dendrites, cell bodies and axon § § Neurons signals are directional ○ How do whole system of neurons communicate? ○ How does neural activity generate our conscious experience? • NEURONS! (and glia) ○ Brains are made of neurons and glia cells ○ Glia support cells in the brain ○ There are 85 billions neurons ○ There are 1 to 50 times the glia cells of the neurons • Types of stains ○ Golgi: Good for shapes ○ Nissl: Good for counting ○ What traditional stains can also do § See recently active(fired) neurons § Visualized connectivity § Detect specific proteins


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