Psychology / Unit 9 Psych 1037 short lesson, about 20 seconds
The Autonomic Signature of Emotion
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The idea
Emotional arousal is produced largely by the sympathetic division, and its physiological pattern is similar across several emotions.
In practice
Heart rate and skin conductance rise similarly in fear and in anger.
Where people slip
This similarity is why polygraph testing cannot distinguish deception from anxiety.
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