Microexpressions

Microexpressions are brief, involuntary facial expressions that reveal genuine emotions someone is experiencing, often milliseconds before they consciously control their reaction. They occur quickly, typically lasting less than half a second, and can signal feelings like happiness, anger, fear, or sadness that a person might attempt to hide. Because they are involuntary, microexpressions offer insights into a person's true emotional state, making them valuable in areas like psychology, security, and interpersonal communication. Recognizing them requires attentive observation, as they often occur so fast that they escape conscious awareness.