Blank expression

A blank expression, also known as a poker face, is a facial expression characterized by neutral positioning of the facial features, implying a lack of strong emotion. It may be caused by emotionlessness, depression, boredom or slight confusion, such as when a listener does not understand what has been said.

Another possible cause for a blank expression is traumatic brain injury such as a concussion. If someone has just been hit on the head and retains a blank or dazed expression, this can warn of concussions early.

Psychiatric disorders such as schizophrenia, facial paralysis, post-traumatic stress disorder, and autism, may also cause a blank expression.

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