Happy screams were easier to pick out than those of fear or pain.
Polygraphs and other emotional sensors are still imperfect after a century of practice.
A genetic variant predisposes people to perceive events more negatively than others.
You may not notice it — at least not as much as you notice when you smile sarcastically — but...
Films could be indexed by the emotional responses they elicit
New DVD helps autistic kids learn to read emotions
Neuroscience: Almost everybody gets pleasure from some kind of pain.
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