Your keyboard might know what you're feeling

Go ahead and try to hide how you're feeling. Your keystrokes could rat you out. Researchers in Bangladesh have designed a computer program that analyzes typing and text patterns to identify emotional states. While both methods have been used before to detect computer users' emotions, the researchers combined them, for the first time, they say, and saw promising results -- software that nails mood as much as 87 percent of the time. They say the findings could be significant to the development of emotionally aware computer systems as their approach relies on less expensive, and less intrusive, methods than tools like voice analysis, facial sensors, thermal imaging, and gesture tracking.