IUB PSY-P 101 - Introduction to Neuroscience (2 pages)

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Introduction to Neuroscience



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Introduction to Neuroscience

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This outline provides an introduction to neuroscience, as well as a summary of important neurotransmitters.


Lecture number:
6
Pages:
2
Type:
Lecture Note
School:
Indiana University, Bloomington
Course:
Psy-P 101 - Introductory psychology

Unformatted text preview:

PSY 101 1st Edition Lecture 6 Outline of Last Lecture I The Experimental Method II Sources of Bias III Ethical Provisions that MUST be followed Outline of Current Lecture I Introduction to Neuroscience and Behavior II How Neurons Communicate III Summary of Important Neurotransmitters Current Lecture I Introduction to Neuroscience and Behavior a Dendrites receive information b Axon carries information to other neurons c Glial Cells i Glial cells outnumber neurons 10 to 1 ii Sticky glue like II III iii Support cells that assist neurons by 1 Providing structural support and nutrition 2 Removal of cell waste 3 Manufacturing myelin iv Three types of Glial Ccells 1 Astrocytes provide connections between neurons and blood vessels 2 Microglia remove waste products from the nervous system 3 Oligodendrocytes brain Schwann cells form myelin sheath d Myelin insulating layer of fatty material composed of glial cells i Helps efficient transmission of signals to other cellrs ii Gaps in myelin sheath are Nodes of Ranvier How Neurons Communicate a Neurons communicate by means of an electrical signal called the action potential i Action potentials are based on the movements of ions between the outside and inside of the cell ii When an action potential occurs a molecular message is sent to neighboring neurons iii When a cell is not firing it is in resting potential Summary of Important Neurotransmitters a Acetylcholine i Primary Roles learning memory muscle contractions ii Associate Disorders Alzheimer s disease b Domamine i Primary Roles movement thought processes rewarding sensations ii Associated Disorders Parkinson s disease Schizophrenia Addiction drug abuse c Serotonin i Primary Roles Emotional states sleep sensory perception ii Associated Disorders Major depressive disorder d Norepinephrine i Primary Roles Physical arousal learning memory regulation of sleep ii Associate Disorders stress major depressive disorder e GABA i Primary Roles Inhibition of brain activity ii Associated



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