psych106-17

psych106-17 - Lecture 17 (March 1st): AUTONOMIC NERVOUS...

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Lecture 17 (March 1 st ): 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 InFuence of Psychological State on Health 3) Effects of Long-Term Stress (Anxiety) on Health High Blood Pressure Possible Memory Loss Ulcers Immune De±ciencies
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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? (remember, we talked a little bit about this last lecture: “±ght or ²ight”)
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Short-Term Stressors ("Fight or Flight") - Pons 3 Neural Mechanisms for Responding - Hypothalamus Involving outputs of the AMGYDALA: 1) DIRECT BEHAVIORAL via Pons (e.g., ±inch, freeze, startle response) last lecture Hypothalamus
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increases heart rate and breathing, decreases digestion, prepares body for intense, emergency situation (“Fght or ±ight”), energy using 2) SYMPATHETIC SYSTEM (more global than #1) (branch of Autonomic Nervous System) Originates in the hypothalamus ……which receives from the Amygdala! ( last slide) Quick Review of Autonomic Nervous System PARASYMPATHETIC: decreases heart rate, increases digestion, relaxation and non-emergency functions, energy conserving (homeostasis) - Vagus nerve
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psych106-17 - Lecture 17 (March 1st): AUTONOMIC NERVOUS...

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