The device examined small differences in heartbeat length that indicated these emotions. The system collected more than 130,000 heartbeats. They were listening to music, looking at photos, or watching videos to help them recall memories that made them feel either happy, excited, sad, angry, or neutral. In experiments, the researchers then had EQ-Radio scan 30 volunteers, each seated about one meter away from the gadget.
![Guide For Detecting Drunk Drivers At Night Guide For Detecting Drunk Drivers At Night](https://ars.els-cdn.com/content/image/1-s2.0-S2590005621000059-gr2.jpg)
Its algorithms can detect individual heartbeats from these radio echoes with an accuracy comparable to on-body ECG monitors. Instead, EQ-Radio emits radio signals that reflect off a person's body and back to the device. For example, on-body sensors such as chest bands and ECG monitors are inconvenient to wear and become less accurate if they shift position over time. Systems that rely on audiovisual cues require people to face cameras, and can miss subtle facial expressions. Zhao and study co-authors Dina Katabi and Fadel Adib will present their work in October at the Association of Computing Machinery's International Conference on Mobile Computing and Networking ( MobiCom ) in New York.Įxisting technologies for detecting emotion require on-body sensors or audiovisual cues, but there are downsides to both these methods. “ For example,” says Zhao, a graduate student, “smart homes could use information about your emotions to adjust the music or even suggest that you get some fresh air if you've been sad for a few days.” Zhao adds that remote emotion monitoring could eventually be used to diagnose or track conditions like depression and anxiety.” “We picture EQ-Radio being used in entertainment, consumer behavior, and healthcare,” says the study’s lead researcher, Mingmin Zhao.
![Guide For Detecting Drunk Drivers At Night Guide For Detecting Drunk Drivers At Night](https://thumbor.forbes.com/thumbor/711x533/https://specials-images.forbesimg.com/imageserve/5e8191aa08eb08000652252c/HWW-features-are-focused-on-the-mind--body--and-soul/960x0.jpg)
The new device, named “EQ-Radio,” is 87 percent accurate at detecting whether a person is excited, happy, angry or sad-all without on-body sensors or facial-recognition software. Emotions can be detected remotely using a device that emits wireless signals to help it measure heartbeat and breathing, say researchers at MIT's Computer Science and Artificial Intelligence Laboratory.