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Week 2 Thursday Notes

by: Yessenia Figueroa

Week 2 Thursday Notes psych 1100

Marketplace > Ohio State University > Psychology > psych 1100 > Week 2 Thursday Notes
Yessenia Figueroa

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About this Document

In depth notes for Thursday Week 2
Introduction to Psychology
Andre Plate
Class Notes
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This 3 page Class Notes was uploaded by Yessenia Figueroa on Tuesday September 6, 2016. The Class Notes belongs to psych 1100 at Ohio State University taught by Andre Plate in Fall 2016. Since its upload, it has received 4 views. For similar materials see Introduction to Psychology in Psychology at Ohio State University.


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Date Created: 09/06/16
Thursday    Ethical Research- very important in psychology, reviewed by  institutional review board, animal care and abuse committee for  animals    Human participants  -informed consent (human must give permission after knowing the  risks/benefits  -cannot do irreversible harm to participants  -must be informed of deception and have questions answered  -is given privacy and confidentiality    Animals  -must demonstrate clear benefit/ purpose  -requires excellent quality/ housing/ care  -minimize pain and suffering  (most controversial, similar to human societies)    Vocabulary    Neurons - nerve cells that communicate with one another by sending/  receiving messages (the most basic form of communication)    (Golgi stain saw neurons- Reticular theory said they were connected)  (Ramon y Cajal- Neuron doctrine said they were separate)    Soma-  heart of the neuron that keeps cell alive, in charge of  metabolism, protein synthesis, home of the DNA    Dendrites - branches from the cell body that receive information  from other neurons    Axon - branch that transmits information to other neurons (single one  for every neuron, can be very long)    Axon Terminal ​ contains synaptic vesicles containing neurotransmitters  (located at the far end of the axon)    Myelin Sheath - insulating layer of fatty material covering the axon that  helps information move faster    Nodes of Ranvier - breaks in the myelin sheath    Propagation of action potential- ​electrical impulses jumping from node  to node skipping myelin covered sections  Glia- supporting cells in the nervous system (form myelin sheath,  provide structure, nutrition, and repair damaged neurons    Synapse - the region between axon of one neuron and the dendrites  or cell body of another, point of communication    Ions-  small electrically charged molecules carrying + or - charge    Banana Analogy-  potassium inside, sodium outside    Resting potential-  difference in electrical charge between the inside  of the neuron and the fluid on the outside    Electrochemical neural communication    Stage 1- Conduction: neuron generates signal known as action potential    Stage 2- Transmission: action potential gets to the axon terminal     Action Potential    Step 1- threshold is reached=action potential occurs    Step 2- depolarization=sodium rushes into the neuron    Step 3- repolarization=near the peak, potassium channels open    Refractory period - follows an action potential during which a new  action potential cannot be initiated     


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