L23-Emotions

L23-Emotions - Emotions Theory o James/Lange Theory of...

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Emotions Theory o James/Lange Theory of Emotion: Emotions rise from physiology and experience o Cannon/Bard: Activation of sympathetic NS (“Fight or Flight”) Prepares an organism for action (behavioral activation); activation of parasympathetic NS allows for energy storage (behavioral suppression) Emotions are coactivated with peripheral neural activation Evidence: muscle-by-muscle instructions for stimulating emotional faces results in autonomic changes (heart rate, skin conductance) o Schachter/Singer Two Factor Theory Emotion depends on 2 factors: physiological arousal and cognitive interpretation of arousal Unless you can interpret, explain, and label bodily changes, you will not feel a true emotion Sham Rage o Bard showed that bilateral removal of cortex resulted in aggressive behavior with no obvious target (Sham rage) o Hypothalamus is involved in aggression o Expression of emotional behaviors did not require the cortex o Later, Hess showed that electrical stimulation of hypothalamus elicited rage Role of Orbitofrontal Cortex o Phineas Gage o Lost “executive functions” Unable to make or carry out plans Displayed inappropriate social behavior
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L23-Emotions - Emotions Theory o James/Lange Theory of...

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