Navigation Links
The hair brush that reads your mind
Date:10/19/2010

WASHINGTON, Oct. 19 One of the main techniques for measuring and monitoring mental activity, called functional near infrared spectroscopy (fNIRS), can often be impaired because a person's hair gets in the way. But now, thanks to a team of researchers at the University of Texas at Dallas and the University of Texas at Arlington, a novel device called a "brush optrode" is providing increased sensitivity with fiber tips designed to thread through hair to enhance scalp contact.

Details of the device will be presented at the Optical Society's (OSA) 94th annual meeting, Frontiers in Optics (FiO) 2010, at the Rochester Riverside Convention Center in Rochester, N.Y., from Oct. 24󈞈.

fNIRS is a noninvasive optical technique that measures oxygen levels in the brain to chart neurological activity. The difference between oxygenated hemoglobin and deoxygenated hemoglobin can be used as a correlate of brain activity. Using fNIRS, this difference in blood oxygen level is determined using a relative spectroscopic measurement at two near infrared wavelengths.

"Using light to measure a person's thinking pattern has numerous advantages over EEGs, including ease of use, reliability, cost, portability and MRI compatibility," says Duncan MacFarlane, professor of electrical engineering in the Erik Jonsson School of Engineering and Computer Science at the University of Texas at Dallas.

"The conventional fibers used in fNIRS systems terminate in a large, flat bundle, and it is easy for a patient's hair to get in the way and block the signal," he explains. "So we developed a new tip for the fNIRS fibers -- a brush optrode that slides the fibers between the hair follicles. Signal levels increase 3- to 5-fold, and patients report that the brush optrode is considerably more comfortable than the conventional fiber ends. And the brush optrode is easier to set up, which saves time and money."

This research is expected to open the door to portable, easy-to-use, high-density optical scanning of brain activity. For example, the University of Texas researchers' work focuses on the imaging of changes in cortical plasticity as a function of impairment severity in children with cerebral palsy. According to Georgios Alexandrakis, a member of the UT Arlington research team, the newly developed optrodes could also be potentially useful to a variety of fNIRS projects, including the evaluation of recovery from stroke, changes in brain activity in Alzheimer's patients, the perception of pain, and for assessing developmental changes in normal and impaired pediatric populations.


'/>"/>

Contact: Lyndsay Basista
lbasista@osa.org
202-416-1930
Optical Society of America
Source:Eurekalert

Related biology news :

1. Research could change course of treatment for cancer that spreads to bones
2. New insights into how deadly amphibian disease spreads and kills
3. Toxoplasma gondii spreads in the habitat of the Iberian lynx
4. The alpine marmot spreads into the Catalan Pyrenees
5. Einstein researchers develop a new way to study how breast cancer spreads
6. Deadly rugby virus spreads in sumo wrestlers
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/23/2016)... , March 23, 2016 ... Interesse erhöhter Sicherheit Gesichts- und Stimmerkennung mit ... Inc. (NASDAQ: MESG ), ein ... dass das Unternehmen mit SpeechPro zusammenarbeitet, um ... der Finanzdienstleistungsbranche, wird die Möglichkeit angeboten, im ...
(Date:3/17/2016)... March 17, 2016 ABI Research, the ... the global biometrics market will reach more than ... increase from 2015. Consumer electronics, particularly smartphones, continue ... sensors anticipated to reach two billion shipments by ... Dimitrios Pavlakis , Research Analyst at ABI Research. ...
(Date:3/11/2016)... http://www.apimages.com ) - --> http://www.apimages.com ) - ... Images ( http://www.apimages.com ) - Germany . ... new refugee identity cards. DERMALOG will be unveiling this device, and ... Hanover next week.   --> Germany ... the new refugee identity cards. DERMALOG will be unveiling this device, ...
Breaking Biology News(10 mins):
(Date:4/27/2016)... ... April 27, 2016 , ... Global Stem Cells ... Advisory Board. Ross is the founder of GSCG affiliate Kimera Labs in Miami. , ... he studied hematopoietic stem cell transplantation for hematologic disorders and the suppression of graft ...
(Date:4/26/2016)... ANGELES, Calif. (PRWEB) , ... April 27, 2016 ... ... Angeles office of Lewis Roca Rothgerber Christie LLP as an associate in the ... prosecuting U.S. and international electrical, mechanical and electromechanical patent applications. He has an ...
(Date:4/26/2016)... ... 26, 2016 , ... Mr. Palmer created the RPO business for Ceridian and ... multi-year managed services contract in the U.S. intelligence community with The SI (a Lockheed ... John Younger, founder of Accolo. “We are growing and his experience guiding our ...
(Date:4/26/2016)... BUDAPEST, Hungary , VIENNA ... 26, 2016 The prize ... and the resulting revolutionary innovations that will benefit ... (Logo: http://photos.prnewswire.com/prnh/20160210/331945LOGO ) , ... developing novel proprietary trend setting products in the ...
Breaking Biology Technology: