Home Technology Wireless signals can detect your emotions with new device

Wireless signals can detect your emotions with new device

Scientists from MIT in collaboration with Artificial Intelligence Lab (CSAIL) have found a new approach to recognize human emotions. Scientists used EQ-Radio device to bounce waves off subjects and calculate their breathing patterns and heart rates. EQ radio device emits and captures reflected radio frequency (RF) waves.

The data then runs through an algorithm. The algorithm was programmed to match physical factors with different emotional evidence. It then classifies the person’s emotion as one of four states: sadness, anger, pleasure, and joy.

Read: 9 amazing motives to smile more!

Scientists took 12 participants. They instruct them to sit three to four feet away from the device. The researchers instructed the subjects to recall a personal experience that made them feel a certain emotion. That established a “ground truth,” or an emotion that the researchers could test to see if the machine would catch it.

The device then uses one of two methods to predict the subject’s feelings. It may either use person’s ground truth as a baseline for future predictions or the baselines gathered from the other participants’ reported emotions.

After that, each subject recalled different experiences that trigger one emotion out of the four emotions the machine could detect. The device measures heart and breathing rates within two minutes.

As the result, the device shows 87% accuracy when depends on person’s baseline and 72% accuracy with people’s emotions.

See stories of the future in your inbox every morning.

EXPLORE MORE

Must Read

First photo of the moon from Chandrayaan 2 shows the Mare Orientale basin in the top right-of-centre, and the Apollo crater in the centre-right of the image. Image: ISRO

Chandrayaan 2 captures the first image of the Moon from Lunar...

India's second lunar exploration mission, Chandrayaan-2- which launched on 22nd July 2019- has recently sent the first images of Moon taken from the moon's...