A wearable band that can reads human emotions

It is quite difficult to understand emotions but now with the help of a wrist band people can keep a tab on their feelings. Smart wearable technology that changes colour, heats up, squeezes or vibrates as your emotions are heightened has the potential to help people with affective disorders better control their feelings, suggests a new study.

Researchers from Lancaster University have worked with smart materials on wrist-worn prototypes that can aid people diagnosed with depression, anxiety, and bipolar disorders in monitoring their emotions. Wrist bands change colour depending upon the level of emotional arousal allows users to easily see or feel what is happening without having to refer to mobile or desktop devices.

"Knowing our emotions and how we can control them are complex skills that many people find difficult to master," said Muhammad Umair, the study's co-author.

"We wanted to create low-cost, simple prototypes to support understanding and engagement with real-time changes in arousal. The idea is to develop self-help technologies that people can use in their everyday life and be able to see what they are going through. Wrist-worn private affective wearables can serve as a bridge between mind and body and can really help people connect to their feelings," added Umair.

The researchers worked with thermochromic materials that change colour when heated up, as well as devices that vibrate or squeeze the wrist. Tests of the devices saw participants wearing the prototypes over the course of between eight and 16 hours, reporting between four and eight occasions each when it activated - during events such as playing games, working, having conversations, watching movies, laughing, relaxing and becoming scared.

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