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Limbic System and the Amygdala

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The limbic system, including the amygdala and parts of the thalamus and hypothalamus, regulates emotion, fear, and motivation, and contributes to memory formation.

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The amygdala is central to both feeling fear and recognizing fearful expressions on others' faces.

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The limbic system is a functional grouping of connected structures, not one single anatomically bounded organ.