(Q009) Mbenga woke up grumpy so her mother tells her to "Turn that frown upside down." When Mbenga goes to school she tries to smile as much as possible during the day. Much to her surprise she does feel happier after smiling all day. Mbenga's happy feeling is consistent with the facial feedback hypothesis, which is a component of the theory of emotions.

James-Lang.

Explanation:

Here it is said proposed by James William and Carl Lang that sequel physical changes in human brings about our emotional changes; and this is the case of Mbenga above.

The appraisal theory of emotion, developed primarily through the work of prominent researchers proposing that emotions are extracted from our “appraisals” which includes our evaluations, interpretations, and explanations of events.

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