What are the theories of emotion?

Facial expressions can influence emotions

Question: What are the theories of emotion?
Position‹5 of 5: Facial Feedback Hypothesis
Argument: Facial expressions can influence emotions

Not only are facial expressions one of the major indicators of a person's emotional state, they can also directly affect emotions.

The argument

Research into the relationship between facial expressions and emotions has shown that controlling or preventing facial expressions dampens the experience of the associated emotions, even when other factors are the same. These findings have provided support to the facial feedback hypothesis, which was first articulated by Charles Darwin during his studies of human and animal emotions. Darwin wrote about the effect of facial expressions to either intensify or soften emotions during emotional experiences. Later, psychologist William James argued that facial expressions were a primary and independent physiological driver of emotions. The significance of facial feedback to emotions has been emphasized by studies of people with autism spectrum disorders, where difficulties in perceiving the emotions of others have been associated with difficulties in identifying facial expressions.

Premises

[P1]Research shows that suppressing facial expressions dampens the experience of the associated emotions, while expressing them intensifies emotions. [P2] Difficulties in identifying facial expressions, as seen in autism spectrum disorders, correspond with difficulties in perceiving emotions. [C] Therefore, facial expressions causally influence emotional experience, supporting the facial feedback hypothesis.

Counter-arguments

The facial feedback hypothesis is genuinely contested. A large multi-laboratory registered replication (Wagenmakers and colleagues, 2016) failed to reproduce the classic 'pen-in-teeth' facilitation of amusement, and subsequent meta-analyses report at most small, moderator-dependent effects. Critics argue facial feedback may modestly modulate emotion rather than causally drive it, and that the correlation in autism reflects broader social-cognitive and perceptual differences rather than facial feedback specifically. The evidence supports a weak influence, not the strong claim that expressions are a primary, independent driver of emotional experience.

Rejecting the premises

[Rejecting P1] A prominent multi-lab registered replication failed to reproduce the facial-feedback effect, and meta-analyses find only small, moderator-dependent influences, so 'dampens/intensifies' overstates a fragile finding. [Rejecting P2] The autism correlation is better explained by broader social-cognitive and perceptual differences than by facial feedback specifically, so it does not establish causation. [Rejecting C] The current evidence supports at most a weak modulatory role, not the strong claim that facial expressions are a primary causal driver of emotion.