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Unformatted text preview: Fear and Stress The Facial Signals Humans-species-specific Controlled by central gray via the facial nucleus and 7 th cranial nerve Blushing is sympathetic response-pathological treating by cutting nerves from superior cervical ganglion Someone with a problem has less flow to occitotemporal area-visual association Human Amygdala responds a lot to whites of eyes-more to fear ANS Sympathetic-fight or flight Parasympathetic-rest or digest Balance determines physiological state SNS aggression displays same as for fear, heightens senses and norandrenergic receptors Smart Vagus Model Primitive-causes freezing in danger, Reptilian-may cause fight or flight instead, Mammals-add fast component modulates heart rate in social behavior Emotions are regulated in cortex-to sensory cortex-high road, to amygdala-low road Limbic System and Fear Hippocampus projects from fornix to septal area and hypothalamus Amygdala projects via stria terminalis to septal area and hypothalamus Frontal lobes-anterior cingulated and amygdale...
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- Spring '11