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Neuroscience

Cognitive Psychology Medin Chapter 1 notes

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Domain of Cognitive Psychology Cognitive Psychology: The study of thought. Approaches and methods to study cognition. Debate & enigma Intuition Just because we have spent our whole lives thinking, doesn?t mean we understand the process. Naive Realism: The idea that perception involves nothing more and nothing less than seeing the world as it is Problems: this is wrong, perspective matters & can change your view as it is colored by expectations and beliefs. We also do not always see things the way they are This also doesn?t provide and explanation of how perception is accomplished. Puzzles Lots of information is lost during the imaging process (turning 3D objects into 2D objects on the retina- perceptual experience has a very large number of possible interpretations).

Neurotransmitters and The Parts of a Neuron

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Important Neurotransmitters: 1. Acetylcholine 2. Dopamine 3. Serotonin 4. Endorphins Parts of a Neuron: 1. Dendrites 2. Soma (cell body) 3. Axon 4. Myelin Sheath 5. Axon terminals 6. Synapse

Psychology Chapter 3: The Biological Bases of Behavior

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The Neural Impulse: Using Energy to Send Information pg75 • Neuron At Rest -The Neuron at rest is a small battery, from the uneven Ion charges from the fluid around it of Sodium (Na) and Potassium (K). -Resting Potential – The Stable, Negative Charge when the Cell is inactive. •The Action Potential - Action Potential – A very brief shift in a Neuron’s electrical charge that travels along an axon. -Absolute Refractory Period – Minimum length of time after an action potential during which another action potential cannot begin. Only about 1 or 2 Milliseconds. -All-Or-None Law – Neural Impulses either Fire or don’t fire. There is no Half-Fire. A faster Rate of transmission means a stronger Stimulus. •The Synapse

Brain Study Guide

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The Brain Depolarization: positive ions, more likely action potential Hyperpolarization.: negative ions, less likely (Types Of) Neurotransmitters ? Chemicals that bind to receptor sites ? Impact/influence receiving neuron ? Reabsorbed into sending neurons through process of reuptake ? Applies brake on neurotransmitter?s action ? Serotonin pathways - involved w mood regulation ? Dopamine pathways - involved w diseases such as schizophrenia & Parkinson?s ____________________________________________________________________________ Neurotransmitter Function Examples of Malfunctions _____________________________________________________________________________ Acetylcholine (ACh) Muscle action, Deterioration: Alzheimer?s learning & memory

Psychology: Themes and Variations, by Wayne Weiten, 7th Edition Textbook Chapter 15 notes

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Psychology: Themes and Variations
by Wayne Weiten
7th Edition Textbook chapter 15 notes


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PSYCH study guide

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Psych Unit One Review Psychology: study of behavior (actions) and mental processes (thoughts) and how these are affected by organism’s physical state, mental state, and external environment. Schools of Thought: Biological: how genetics, brain chemistry, hormones affect behavior, feelings, thoughts. Learning/Conditioning: external variables shape behaviors. Cognitive: thinking. Change behavior by thoughts. Psychodynamics: Sigmund Freud. Unconscious desires impacting behavior. Types of Applications of Psychology: School/Educational: understanding students learning processes Industrial/Organizational: work, what motivates employees Psychometrics: tests. Designing questions to measure abilities and traits. Human factors: how technology can be designed so people understand.

Psychology Disorder Part 1

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Outline 589-606 Anxiety Disorders A Condition in which intense feelings of apprehension are long standing and disruptive Phobia An intense irrational fear of an object or situation that is not likely to be dangerous Most prevalent of the anxiety disorders, affecting 7 to 11 perccent f adults of children Social Phobia ? an anxiety disorder involving strong irrational fears relating to social situations Agoraphobia ? an anxiety disorder involving strong fear of being alone or away from the security of home Generalized Anxiety Disorder A condition that involves relatively mild but long lasting anxiety that is not focused on any particular object or situation Become anxious and worried, jumpy and irritable Often accompanying other problems like depression and substance abuse

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