Psych 105 Week 2 Notes
Psych 105 Week 2 Notes PSYCH 105
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This 4 page Class Notes was uploaded by Emily Jones on Monday January 25, 2016. The Class Notes belongs to PSYCH 105 at Washington State University taught by Olesya Mikheeva in Fall 2016. Since its upload, it has received 24 views. For similar materials see Introductory Psychology in Psychlogy at Washington State University.
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Date Created: 01/25/16
January 20 2016 Psych 105 Section 5 staple rubric to all writing assignments Writing Assignment 1 1 Take the plagiarism test online 2 Pick any article on a topic you re interested in then print it out 3 Paragraph 1 introduce and explain the topic why it s interesting to you 4 Paragraph 2 explain how you found the article through psych info literally talk through step by step your process of nding your article 5 Paragraph 3 describe what you learned what you already knew and how can the article relate to the real world 6 Paragraph 4 nd a second article through your rst one and explain your process of nding this second article a lot of people are confused by this step I suggest talking to Olysa don t forget to cite your sources Neuroscience and Behavior Chapter 2 Our nervous system communicates through neurons cells that receive and transmit messages their 1 job is to communicate to other cells 1 gather information from the environment to the brain 2 take information from the brain to muscle and glands instruct us to move 3 facilitate communication amongbetween the neurons Part of the Neuron 0 Manufacture proteins home to the nucleus processes nutrients 0 Short bers extending from the cell body look like tree branches 0 Receive info from axons o The tube extending from the cell bodysoma o In most neurons but not all 0 Carry information between neurons or to the brain or to the musclesglands 0 White fatty skin covering the axon 0 Not on all axons 0 Make the axon communicate much faster o If it is damaged Multiple sclerosis may occur Communication between neurons is extremely slowed or interrupted resulting in speech or muscle disturbances and possible balance problems minimum amount of stimulation necessary for the neuron to activation or re the information actual process of the messageinfo being sent down the axon Sodium comes in and potassium goes out of the axon segments which push the message along communication between neurons where passing of information happens 0 Presynaptic and postsynaptic neurons chemical messengers made by neurons 0 Ex Dopamine o Excitatory or inhibitory messages picking up rejected info from the neurons then try to release the info again 0 Regulates the amount of serotonin in the brain Neurotransmitters Ability to think feel and act depend on this delicate balance 0 Dopamine balanceimbalance affect movement attention learning rewarding sensations Drugs are peoples reward to themselves which results in drug addiction this is the cause of too much dopamine Parkinson s disease is the result of not enough its hard to move and tremors occur Schizophrenia is another result of too much the opposite of Parkinson s January 22 2016 Psychology 105 Section 5 Neurotransmitters M slows down or sometimes even stops neuron activity Too much GABA impairs learning and motivation Too little GABA can lead to seizures Alcohol xanex and antianxiety meds increases GABA End0rlm quotthe body s natural pain killerquot chemically similar to morphine but 110 times more potent than morphine acts as a neurotransmitter but itsn t really one usually released during high amounts of stress or severe traumas reduces our perception of pain How do drugs affect synaptic transmission 1 Blocks reuptake Increase amount of neurotransmitter in the brain ex SSRI 2 Mimic a drug that binds to receptor cites of the neurotransmitter and mimics its actionseffects ex Nicotine blocks the effect of a certain transmitter ex Heroine which is an opioid 0 Used by injection to help a drug overdose naloxone Neuroscience and BehaviorThe Nervous System there s a nervous system chart on blackboard in the slides the brain is highly susceptible to injury ex Concussions which cause physical damage and disrupt the brain funcUon o damages the axon myelin sheath and brain chemistry loss of ability to retain information concentrate dizziness memory loss slurred speech etc 0 these types of damages may not show up of a CAT scan or MRI because the injury is so microscopic Repeated concussions CTE chronic traumatic encephalopathy unable to diagnose until after death causes depression loss ofjudgment and memory concentration and impulse control ability to change the function of the structure of the brain 1 shift function from the damaged part of the brain to the undamaged 2 changing the structure to adapt to injuries most basic function of the brain connects the brain to the spinal cord r controls re exes breathing and heartbeat coordinate movement on right and left sides of body sends messages between the halves to keep the body balanced regulate balance and posture 0 affected by alcohol uppermost and largest part of the brain connects the two sides of the brain quotthe squiggly linesquot that divide the brain
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