week_13_emotion_2_3 - Emotion II Week 13 Temple 2006 1 How...

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HD 220 Fall 2006 1 Temple 2006 1 Emotion II Week 13 Temple 2006 2 How Do We Feel Emotion? •Em o t i o n – Theories about emotion – Anatomy of emotion • Limbic System • Amygdala • Prefrontal cortex – Clinical disorders: depression and anxiety disorders • Reward – Anatomy of ‘rewarding’ behavior Temple 2006 3 Emotion •Emo t ion – Concept of emotion is difficult to define – We can identify how emotions are expressed • Physiological changes accompany emotions – Heart rate, blood pressure, hormone secretions, motor movements (especially facial expression) – Emotions involve • Autonomic response
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HD 220 Fall 2006 2 Temple 2006 4 Emotion • Number of theories about what stimulates an emotional response –1 st physiology then “emotion” –1 st emotion then physiological response • Somatic marker hypothesis – Antonio Damasio Temple 2006 5 Stimulating an “Emotion” James-Lange theory – Brain reacts body reaction –1 st physiology then “emotion” • Trembling, rapid heart rate • Brain interprets – Creates cognitive response – Labels experience – Evidence • Different emotions can be associated with one autonomic response – Implies that interpretation is a component • People with severed communication between autonomic response and brain seem to have less emotional response Temple 2006 6 Stimulating an “Emotion” • Somatic marker hypothesis – Antonio Damasio – Emotions cause “marker” signals to arise. • These guide behavior and decision making, usually unconsciously – Internal or external stimuli – often unconsciously processed – Impact emotional structures of brain • Limbic system • Amygdala – These structures then send signals to trigger: • 1. Physiological response – Body and autonomic nervous system • 2. Conscious reaction and appraisal – Cortex, especially frontal lobe –1 st is emotional response then conscious thought and autonomic response to emotion
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HD 220 Fall 2006 3 Temple 2006 7 How Do We Feel Emotion? •Em o t i o n – Theories about emotion – Anatomy of emotion • Limbic System • Amygdala • Prefrontal cortex – Clinical disorders: depression and anxiety disorders • Reward – Anatomy of ‘rewarding’ behavior Temple 2006 8 Forebrain: Limbic System • Limbic system – Regions of brain involved in emotion and memory – Amygdala – Hippocampal formation – Cingulate gyrus – Mammilary bodies of hypothalamus – Anterior nucleus of thalamus
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week_13_emotion_2_3 - Emotion II Week 13 Temple 2006 1 How...

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