How Long Does Micro Expressions Last?
How Long Does Micro Expressions Last? Human emotions are an unconscious biopsychosocial reaction that derives from the amygdala and they typically last 0.5–4.0 seconds, although a microexpression will typically last less than 1/2 of a second. Are microexpressions reliable? Microexpressions are lauded as a valid and reliable means of catching liars (see Porter and ten