Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

People say we're running out of energy. That's only true if we stick with these old 19th century technologies. We are awash in energy from sunlight.

 

Ray Kurzweil

 

How to detect emotions remotely with wireless signals

RATE THIS! +34
Posted in Science on 28th Sep, 2016 06:29 PM by AlexMuller

MIT researchers have developed “EQ-Radio,” a device that can detect a person’s emotions using wireless signals. By measuring subtle changes in breathing and heart rhythms, EQ-Radio is 87 percent accurate at detecting if a person is excited, happy, angry or sad, and can do so without on-body sensors, say researchers.

 
MIT professor and project lead Dina Katabi of MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL) envisions the system being used in health care and testing viewers’ reactions to ads or movies in real time.
 
Using wireless signals reflected off people’s bodies, the device measures heartbeats as accurately as an ECG monitor, with a margin of error of approximately 0.3 percent, according to the researchers. It then studies the waveforms within each heartbeat to match a person’s behavior to how they previously acted in one of the four emotion-states.
 
The team will present the work next month at the Association of Computing Machinery’s International Conference on Mobile Computing and Networking (MobiCom).
 
EQ-Radio sends wireless signals that reflect off of a person’s body and back to the device. To detect emotions, its beat-extraction algorithms break the reflections into individual heartbeats and analyze the small variations in heartbeat intervals to determine their levels of arousal and positive affect.
 
These measurements are what allow EQ-Radio to detect emotion. For example, a person whose signals correlate to low arousal and negative affect is more likely to tagged as sad, while someone whose signals correlate to high arousal and positive affect would likely be tagged as excited.
 
The exact correlations vary from person to person, but are consistent enough that EQ-Radio could detect emotions with 70 percent accuracy even when it hadn’t previously measured the target person’s heartbeat. In the future it could be used for non-invasive health monitoring and diagnostic settings.
 
For the experiments, subjects used videos or music to recall a series of memories that each evoked one the four emotions, as well as a no-emotion baseline. Trained just on those five sets of two-minute videos, EQ-Radio could then accurately classify the person’s behavior among the four emotions 87 percent of the time.
 
One of the challenges was to tune out irrelevant data. To get individual heartbeats, for example, the team had to dampen the breathing, since the distance that a person’s chest moves from breathing is much greater than the distance that their heart moves to beat.
 
To do so, the team focused on wireless signals that are based on acceleration rather than distance traveled, since the rise and fall of the chest with each breath tends to be much more consistent,  and, therefore, have a lower acceleration, than the motion of the heartbeat.

Tags: emotionresearchhardwarepsychologysensor

Read original article » Back to category

Comments

Author: Guest
Posted: 2016-09-29
+1
Interesting progress and detecting people's emotions in this way could be useful for communication - AI could use it? Reply


 

Recent headlines

  • Posted in Medicine on 2017-08-18 18:35:43
    Those at greater risk of having schizophrenia are more.....read more
    Posted in Science on 2017-08-18 18:46:40
    New energy to play a dominant role in China by 2030..read more
    Posted in Science on 2017-08-18 18:41:00
    Astrophysicists predict Earth-like planet 16 light years.....read more
    Posted in Medicine on 2017-08-18 18:30:00
    Alzheimer's may be detected early, via eye exam..read more
    Posted in Medicine on 2017-08-17 17:34:13
    Liquid Biopsy Passes Test for Early Cancer Predicts 59%.....read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Scientists probe Neptune's depths to reveal secrets of icy.....read more
    Posted by AlexMuller
    New terahertz imaging approach could speed up skin cancer.....read more
    Posted by AlexMuller
    Rebutting the claim that antidepressants do not work..read more
    Posted by AlexMuller
    Artificial neural networks decode brain activity during.....read more
    Posted by AlexMuller
    Four Earth-sized planets detected orbiting the nearest.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me