Brain imaging technology that traces the way neurons react when a person processes facial expressions such as anger, fear, sadness, disgust and happiness can help determine if a person has bipolar disorder or depression.
Investigators say neurons in the brain structure called the amygdala play a key role in processing emotion. Using magnetic resonance imaging (MRI), nerve cells in this brain area are shown to respond differently to facial expressions depending on whether the person has...
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source https://psychcentral.com/news/2018/09/05/mri-shows-how-facial-expressions-can-help-diagnose-bipolar-or-depression/138449.html
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