Featured Research

from universities, journals, and other organizations

'Tiny Radio Antennas' Under Skin Could Act As Remote Sensors Of Humans' Emotional, Physiological State

Date:
April 29, 2008
Source:
Hebrew University of Jerusalem
Summary:
Scientists have discovered a method for remote sensing of the physiological and emotional state of human beings. The researchers believe the discovery could theoretically help remotely monitor medical patients, evaluate athletic performance, diagnose disease and remotely sense the level of excitation -- which could have significant implications for technology in the biomedical engineering, anti-terror and security technology fields.

Professors Yuri Feldman and Aharon Agranat
Credit: Image courtesy of Hebrew University of Jerusalem

Scientists at the department of Applied Physics of the Hebrew University of Jerusalem have discovered a method for remote sensing of the physiological and emotional state of human beings.

The researchers believe the discovery could theoretically help remotely monitor medical patients, evaluate athletic performance, diagnose disease and remotely sense the level of excitation – which could have significant implications for technology in the biomedical engineering, anti-terror and security technology fields.

The key is in the surprising shape of human sweat ducts. Professors Yuri Feldman and Aharon Agranat together with Dr. Alexander Puzenko, Dr. Andreas Caduff and PhD student Paul Ben-Ishai have discovered that the human skin is structured as an array of minute antennas that operate in the “Sub Terahertz” frequency range.

This discovery is based on investigations of the internal layers of the skin that were undertaken using a new imaging technique called “Optical Coherent Tomography”. Images produced by this technique revealed that the sweat ducts, which are the tubes that lead the sweat from the sweat gland to the surface of the skin, are shaped as tiny coils. Similar helical structures with much larger dimensions have been used widely in as antennas in wireless communication systems. This made the investigators consider the possibility that the sweat ducts could behave like tiny helical antennas as well.

In a series of experiments, the team measured the electromagnetic radiation reflected from the palm skin at the frequency range between 75GHz and 110GHz. It was found that the level of the reflected intensity depends strongly on the level of activity of the perspiration system. In particular, it was found that the reflected signal is very different if measured in a subject that was relaxed, and if measured in a subject following intense physical activity.

In a second set of measurements it was found that during the period of return to the relaxed state, the reflected signal was strongly correlated with changes in the blood pressure and the pulse rate that were measured simultaneously.

The initial results of the research were published last week in the prestigious scientific journal The Physical Review Letters. The publication aroused significant interest among scientists, physicians and science writers.

The researchers emphasize however, that the research is still in its initial stages and as they “sail in unsheltered water” it will take some time before the full significance of the research is understood and its technological potential is fully evaluated.

The invention has been patented and commercialized by Yissum, the technology transfer company of the Hebrew University of Jerusalem.


Story Source:

The above story is based on materials provided by Hebrew University of Jerusalem. Note: Materials may be edited for content and length.


Cite This Page:

Hebrew University of Jerusalem. "'Tiny Radio Antennas' Under Skin Could Act As Remote Sensors Of Humans' Emotional, Physiological State." ScienceDaily. ScienceDaily, 29 April 2008. <www.sciencedaily.com/releases/2008/04/080428155737.htm>.
Hebrew University of Jerusalem. (2008, April 29). 'Tiny Radio Antennas' Under Skin Could Act As Remote Sensors Of Humans' Emotional, Physiological State. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2008/04/080428155737.htm
Hebrew University of Jerusalem. "'Tiny Radio Antennas' Under Skin Could Act As Remote Sensors Of Humans' Emotional, Physiological State." ScienceDaily. www.sciencedaily.com/releases/2008/04/080428155737.htm (accessed July 31, 2014).

Share This




More Matter & Energy News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Britain Testing Driverless Cars on Roadways

Britain Testing Driverless Cars on Roadways

AP (July 30, 2014) British officials said on Wednesday that driverless cars will be tested on roads in as many as three cities in a trial program set to begin in January. Officials said the tests will last up to three years. (July 30) Video provided by AP
Powered by NewsLook.com
Amid Drought, UCLA Sees Only Water

Amid Drought, UCLA Sees Only Water

AP (July 30, 2014) A ruptured 93-year-old water main left the UCLA campus awash in 8 million gallons of water in the middle of California's worst drought in decades. (July 30) Video provided by AP
Powered by NewsLook.com
Smartphone Powered Paper Plane Debuts at Airshow

Smartphone Powered Paper Plane Debuts at Airshow

AP (July 30, 2014) Smartphone powered paper airplane that was popular on crowdfunding website KickStarter makes its debut at Wisconsin airshow (July 30) Video provided by AP
Powered by NewsLook.com
U.K. To Allow Driverless Cars On Public Roads

U.K. To Allow Driverless Cars On Public Roads

Newsy (July 30, 2014) Driverless cars could soon become a staple on U.K. city streets, as they're set to be introduced to a few cities in 2015. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

    Technology News



      Save/Print:
      Share:

      Free Subscriptions


      Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

      Get Social & Mobile


      Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

      Have Feedback?


      Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
      Mobile: iPhone Android Web
      Follow: Facebook Twitter Google+
      Subscribe: RSS Feeds Email Newsletters
      Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins