PSYC 4600 Lecture Notes - Lecture 17: Papez Circuit, Electrodermal Activity, Negative-Feedback Amplifier

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Lecture 17: emotion: can be measured through skin conductance. Categories: ekman faces: universal emotional expressions. Expressions of fear vs disgust: study: susskind et al. Antiface for fear looks like disgust and the antiface of disgust looks like fear. Field of vision: gets larger for fear, smaller for disgust. Eye velocity: eyes move faster when fearful than disgusted. Air velocity: nostrils more open with fearful than disgusted, air moves faster when afraid (deeper faster breathing) James-lange feedback theory: deterministic relationship between bodily reactions and emotions. They say that bodily reaction determine emotions (we are afraid because we run: no emotions are felt in the absence of bodily sensations. Told to act euphoric (happy/child-like) or angry. Informed about the effects of the drug or not: results, bodily responses (induced by a drug) are not sufficient to trigger an emotion. Pattern of thalamic discharge govern emotional reactions. Study: thalamus and hypothalamus is the most important components for emotion.

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