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n. the set of muscles, innervated by the facial nerve, that activates the movement of the upper lip outward, upward, and backward. Its activity is recorded in studies of emotion.

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Psychology term of the day

June 17th 2024

loss of consciousness (LOC)

Sorry, "loss-of-consciousness-loc" is not in the Dictionary of Psychology. Please report to APA if you believe this is an error.