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Introduction to Psychology, 7th Edition, James W. KalatChapter 12: Emotions, Health, and StressChapter 12Emotions, Health, and Stress
Introduction to Psychology, 7th Edition, James W. KalatChapter 12: Emotions, Health, and StressEmotionMyth -- despite the pop culture lore that promotesthis idea.Brain damaged people with impaired emotions aregenerally inferior decision-makers (e.g., Phineas Gage)Emotions are a powerful informer of our decisions,closely related to motivation, as almost any motivationhas an emotion tied to it.EmotionA crucial part of our experience as humansAn elusive concept, difficult to define and measure.Truth or Myth?If we could keep our emotions in check we wouldmake better decisions?
Introduction to Psychology, 7th Edition, James W. KalatChapter 12: Emotions, Health, and StressModule 12.1The Nature of Emotions
Introduction to Psychology, 7th Edition, James W. KalatChapter 12: Emotions, Health, and StressMeasuring EmotionsMeasuring emotion poses challenges. Each method has itsstrengths and weaknesses.Self-reportsare fast and easy but may havequestionable accuracy.Behavioral observations;especially of facialexpressions are useful. Although facial emotions can besuppressed,micro-expressionscan be very revealing.Physiological measuresuse autonomic nervousactivity. These are harder to control or suppress,although their meaning is subject to interpretation.
Introduction to Psychology, 7th Edition, James W. KalatChapter 12: Emotions, Health, and StressExcitement and Physiological ArousalThe role of the autonomic nervous systemTheautonomic nervous systemis the division thatcontrols the functioning of the internal organs.The ANS has two subdivisions, thesympatheticandparasympatheticnervous systems.
Introduction to Psychology, 7th Edition, James W. KalatChapter 12: Emotions, Health, and StressThe Autonomic Nervous SystemThe sympathetic nervous system -- “crisis management”It prepares the body for intense activity, “fight or flight”and other stress-related behaviors (increases the heartrate, breathing rate, production of sweat, and flow ofadrenaline).The parasympathetic nervous system -- “long-term survival”decreases heart rate and supports non-emergencyfunctions (e.g., digestion) that keep an organism alive inthe long-term.
Introduction to Psychology, 7th Edition, James W. KalatChapter 12: Emotions, Health, and StressThe Autonomic Nervous SystemThe two divisions of the ANSBoth systems are active, and the shifting between thetwo systems helps to keep the body in a balancedcondition called homeostasis.Emergencies mainly activate the sympathetic nervoussystem, but also may involve some parasympatheticactivity (i.e., being frightened causes an individual tolose bowel or bladder control).
Introduction to Psychology, 7th Edition, James W. KalatChapter 12: Emotions, Health, and StressThe Autonomic Nervous System

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