Device Can Read Emotions By Bouncing Wireless Signals Off Your Body

Emotions can be tricky enough for humans to read, let alone machines, but a new system can predict people's feelings with 87 percent accuracy by bouncing wireless signals off them, researchers say.
The setup, dubbed EQ-Radio, analyzes the signal reflected off a subject's body to monitor both breathing and heartbeat. These physiological cues are commonly used to detect a person's emotions, but it typically requires hooking up the subject to a host of sensors.

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