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Chapter 2 Intro to Psychology Notes

by: Carmyn L Watkins

Chapter 2 Intro to Psychology Notes PSYC 101 008

Marketplace > Ivy Tech Community College > PSYC 101 008 > Chapter 2 Intro to Psychology Notes
Carmyn L Watkins
Ivy Tech Community College
GPA 3.0

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About this Document

this covers the brain and how neurons fire
Introduction to Biological and Cognitive Psychology
Terrance Kinnard
Class Notes
Intro to Psychology
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This 3 page Class Notes was uploaded by Carmyn L Watkins on Wednesday September 21, 2016. The Class Notes belongs to PSYC 101 008 at Ivy Tech Community College taught by Terrance Kinnard in Fall 2016. Since its upload, it has received 5 views.

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Date Created: 09/21/16
September 20 th Brain Brain Chemistry  how does is explain behavior/chemistry  is the mind real?  how it works  neural psychology/ bio psychology The Nervous System- consists of mainly chemical transmissions -myelin sheath insulates the axon to make the impulses faster. -when the sheath starts to deteriorate people start to form multiple sclerosis How does a neuron fire?  Resting potential has a slightly negative charge  Action potential has a positive charge  Reach the threshold when enough neurotransmitters reach dendrites  Go into action potential  All or none response  Transfer of ions across the synaptic gap Acetylcholine- motor movement and memory when their a lack of ACH it will cause Alzheimer’s disease too much causes exaggerated movements Dopamine-  motor movement and alertness  too much, exaggerated movements, linked to schizophrenia  when there is a lack leads to Parkinson’s disease  With schizophrenia your brain isn’t processing the dopamine fast enough so it starts making things up to fill in the gaps Serotonin-  mood control  lack leads to clinical depression Endorphins- Pain control most addictive drugs deal with endorphins Drugs can be  Agonist- make neurons fire  Antagonists- stop neurons from firing  Reuptake inhibitors- stop the reuptake process The Central Nervous system- -brain and spinal Peripheral Nervous system- -everything BUT the brain and spinal cord Somatic- voluntary motions Autonomic- involuntary motions Sympathetic- fight or flight Parasympathetic- calming The brain- the best example of brain injury where we can see a difference and we realized that the brain was Phineas Gage Cerebral Cortex- Top layer, biggest layer Hemispheres- - left side, spatial, creative task - Right, logic We watched a couple great videos about brain lacerations, where the right side of brain controls the left side of the body and vice versa. What happens when the connection between the hemispheres is cut? Look up some videos on YouTube there are some great examples.


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