Controlling nonverbal displays: Facial expressions and tone of voice

Abstract This study investigated the hypothesis that facial expressions are more controllable and closer to one's awareness than vocal cues. Specifically, it was suggested that nonverbal displays are a function of three factors: (a) expressiveness, or the tendency to display spontaneous nonverbal cues: (b) controllability, or the ability to voluntarily suppress or exaggerate one's spontaneous display: and (c) demeanor, or the sender's tendency to convey a particular impression regardless of his/her experienced emotion. Subjects' facial and vocal reactions to affective stimuli were recorded in a spontaneous condition or under instructions to magnify or conceal reactions to these stimuli. It was shown that information conveyed by facial expressions was best accounted for by controllability whereas information conveyed by tone of voice was best accounted for by expressiveness and demeanor.

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