Navigation Links
Ultrasound directed to the human brain can boost sensory performance
Date:1/12/2014

g the skin are truly two distinct points, rather than one; and the frequency discrimination task, a test that measures sensitivity to the frequency of a chain of air puffs.

What the scientists found was unexpected.

The subjects receiving ultrasound showed significant improvements in their ability to distinguish pins at closer distances and to discriminate small frequency differences between successive air puffs.

"Our observations surprised us," said Tyler. "Even though the brain waves associated with the tactile stimulation had weakened, people actually got better at detecting differences in sensations."

Why would suppression of brain responses to sensory stimulation heighten perception? Tyler speculates that the ultrasound affected an important neurological balance.

"It seems paradoxical, but we suspect that the particular ultrasound waveform we used in the study alters the balance of synaptic inhibition and excitation between neighboring neurons within the cerebral cortex," Tyler said. "We believe focused ultrasound changed the balance of ongoing excitation and inhibition processing sensory stimuli in the brain region targeted and that this shift prevented the spatial spread of excitation in response to stimuli resulting in a functional improvement in perception."

To understand how well they could pinpoint the effect, the research team moved the acoustic beam one centimeter in either direction of the original site of brain stimulation and the effect disappeared.

"That means we can use ultrasound to target an area of the brain as small as the size of an M&M," Tyler said. "This finding represents a new way of noninvasively modulating human brain activity with a better spatial resolution than anything currently available."

Based on the findings of the current study and an earlier one, the researchers concluded that ultrasound has a greater spatial resolution than two other leading noninvasive
'/>"/>

Contact: Paula Byron
pbyron@vt.edu
540-526-2027
Virginia Tech
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Trial to test using ultrasound to move kidney stones
2. Ultrasound, nanoparticles may help diabetics avoid the needle
3. Ultrasound patch heals venous ulcers in human trial
4. UF researcher shows hawkmoths use ultrasound to combat bats
5. Measuring ultrasound for better treatment of muscle injuries
6. Texas A&M research contributes to improved ultrasound imaging
7. Ultrasound reveals autism risk at birth
8. Springer will collaborate with the Italian Society for Ultrasound in Medicine and Biology
9. Neuroscientists prove ultrasound can be tweaked to stimulate different sensations
10. Preclinical studies use specialized ultrasound to detect presence of cancer
11. Acoustic tweezers capture tiny creatures with ultrasound
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Ultrasound directed to the human brain can boost sensory performance
(Date:12/19/2014)... and Markets ( http://www.researchandmarkets.com/research/86ncd6/micro_market ) has announced ... America Perimeter Security Systems Market" report to their ... The North American perimeter security market is estimated ... to 2019. Although the U.S. market holds a larger ... is expected to grow at a higher CAGR of ...
(Date:12/17/2014)... Dec. 15, 2014  HITLAB SM announced ... (GCP) audit to confirm its adherence to current ... accomplishment enables HITLAB to conduct regulated smart device ... principles for patient safety and research quality. ... access, quality, and delivery with innovative technology," said ...
(Date:12/11/2014)... , Dec. 09, 2014 Research and ... ( http://www.researchandmarkets.com/research/twhjll/biometrics_market ) has ... in the APAC Region 2015-2019"  report to their ... in this market is advances in technology. With ... upgrade biometric solutions to the latest standard that ...
Breaking Biology News(10 mins):Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 2Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 3HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2
... The increasing acidity of the world,s oceans and ... definitive proof that the atmospheric carbon dioxide that is ... environment, says world-renowned Antarctic marine biologist Jim McClintock, Ph.D., ... Department of Biology. "The oceans are a sink ...
... , PARIS , Feb. 4 ... network for Eurofins Scientific, a global leader in bio-analysis. , ... will securely connect 16 key Eurofins laboratories and research centers ... with the company,s global customer base.  Verizon will use MPLS ...
... COLLEGE STATION A joke among two Texas ... found Viagra can aid fetal development in female sheep. ... can serve as an excellent animal model for studying ... Viagra (sildenafil citrate), which is used to treat male ...
Cached Biology News:Oceans reveal further impacts of climate change, says UAB expert 2Oceans reveal further impacts of climate change, says UAB expert 3Verizon Business to Provide Global IP for Eurofins Scientific 2Verizon Business to Provide Global IP for Eurofins Scientific 3Study shows male erectile dysfunction drug enhances fetal growth in female sheep 2
(Date:12/22/2014)... Dec. 22, 2014  ( www.competitivehealth.com ) — Competitive ... medical bill review and advocacy service, has signed an ... WellCard Savings discount health services marketplace. 63% ... more than they expected to pay. As part of ... costs, WellCard Savings is pleased to offer medical bill ...
(Date:12/22/2014)... 22, 2014 Fertility Associates of Memphis ... Bank USA , a network of more than 20 ... partnership, patients have fast access to a national pool ... IVF . Fertility Associates of Memphis is the only ... treatment option. , Dr. William Kutteh , director ...
(Date:12/19/2014)... BioPlus Specialty Pharmacy (BioPlus), one ... of Nick Maroulis, Pharm.D. to the newly created position ... In this position, Dr. Maroulis will continue to manage ... of our multi-site pharmacies as the company expands. Dr. ... that time he has served in many different capacities ...
(Date:12/19/2014)... Dec. 19, 2014 Bina Technologies, Inc. (Bina, ... that they have been acquired by Roche (SIX: RO, ... privately held company that provides a big data platform ... (NGS) data for the academic and translational research markets. ... and will continue to focus on development of their ...
Breaking Biology Technology:WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3BioPlus Specialty Pharmacy Promotes Dr. Nick Maroulis to Vice President of Specialty Pharmacy Services 2Bina Technologies is acquired by Roche. 2Bina Technologies is acquired by Roche. 3
... 2011 Sequenom, Inc. (NASDAQ: SQNM ), a ... the Company,s participation at the Lazard Capital Markets 8th Annual ... November 15-16, 2011. Harry F. Hixson, Jr, Ph.D., ... EVP of Research and Development, will present on Tuesday, November ...
... of active metamaterial that incorporates semiconductor devices into conventional ... gain while retaining its negative refraction property, a first ... and experimental results show that the addition of the ... also maintained the negative index of this kind of ...
... 9, 2011 A new diagnostic kit ... been launched at the Veterinary Cancer Society,s annual conference ... ) in the UK, the announcement is a significant ... major benefit being that it is able to differentiate ...
Cached Biology Technology:Sequenom Announces Participation at the Lazard Capital Markets 8th Annual Healthcare Conference 2New metamaterial allows transmission gain while retaining negative refraction property 2New Kit Takes the Uncertainty Out of Lymphoma Diagnosis 2
Rabbit polyclonal to Peptide E ( Abpromise for all tested applications)....
Mouse monoclonal [6911] to E. coli K99 pilus ( Abpromise for all tested applications)....
...
...
Biology Products: