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psych106-17 - Lecture 17(March 6th AUTONOMIC NERVOUS SYSTEM...

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Lecture 17 (March 6 th ): AUTONOMIC NERVOUS SYSTEM AND HEALTH Lecture Outline 1) Three Types of Responses to Stress A) Direct Behavioral B) Sympathetic System (Branch of Autonomic System) C) Hormonal 2) The Influence of Psychological State on Health 3) Effects of Long-Term Stress (Anxiety) on Health High Blood Pressure Possible Memory Loss Ulcers Immune Deficiencies
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Last Lecture : What area underlies recognition of threatening stimuli / experience of fear/anger ? 2) Anxiety is a condition of long-term" ("chronic ) stress. How is the body/brain affected by anxiety? Amygdala This Lecture : 1) Fear and Anger are negative emotions , which are usually short-lived and lead to a short-term stress response. How does your body respond? fight or flight
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Short-Term Stressors ("Fight or Flight") - Pons 3 Neural Mechanisms for Responding - Hypothalamus Involving outputs of the AMGYDALA (from last lecture): 1) DIRECT BEHAVIORAL via Pons (e.g., flinch, freeze, startle response) last lecture Hypothalamus
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SYMPATHETIC: increases heart rate ( gets glucose and oxygen to muscles ) and breathing ( gets oxygen to muscles ), decreases digestion. Prepares body for intense, emergency situation ( fight or flight ), energy using! 2) SYMPATHETIC SYSTEM (more global than “Direct Behavioral”) (branch of Autonomic Nervous System) Originates in the hypothalamus ……which receives from the Amygdala! ( last slide) First, a Quick Review of Autonomic Nervous System PARASYMPATHETIC: decreases heart rate, increases digestion, relaxation and non-emergency functions, energy conserving (homeostasis) -
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