Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
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Joy-to-‘neutral’ videos started with a facial expression of joy (100%), which gradually morphed into a 10% joy, a neutral or a 10% anger expression (top panel). Anger-to-‘neutral’ videos started with a facial expression of anger (100%), which gradually morphed into a 10% anger, a neutral or a 10% joy expression (bottom panel).
