Navigation Links
Particular Brain Rhythm in Sleep Makes You More Vulnerable to Disturbances
Date:3/3/2011

THURSDAY, March 3 (HealthDay News) -- New findings about brain rhythms could lead to the development of improved sleep treatments, a new study suggests.

A team at Massachusetts General Hospital found that a brain rhythm regarded as the emblem of wakefulness persists in a hidden form during sleep, where it becomes more intense at certain times -- something that appears to affect people's vulnerability to being awakened by noise or other disturbances.

To test their theory, the researchers used computerized electroencephalography (EEG) rhythms in 13 volunteers who slept -- or at least tried to -- three nights in the MGH Sleep Lab. At many intervals throughout each night, the volunteers were exposed to 10 seconds of typical background noises, such as traffic or a ringing telephone. The sounds were repeated at increasingly louder levels until the EEG showed that sleep had been disrupted.

An analysis of the EEG measurements showed that the intensity of the alpha signal predicted how easily volunteers could be disturbed at the moment the measurement was taken, with a stronger alpha signal linked to more fragile sleep.

"We found that the alpha rhythm is not just a marker of the transition between sleep and wakefulness but carries rich information about sleep stability," study author Scott McKinney, informatics manager at the MGH Sleep LAB, said in a hospital news release.

"This suggests that sleep -- rather than proceeding in discrete stages -- actually moves along a continuum of depth. It also opens the door to real-time tracking of sleep states and creates the potential for sleep-induction systems that interface directly with the brain," he added.

Although the alpha rhythm was discovered nearly 100 years ago, researchers once thought it disappeared when sleep began because they no longer saw it on an EEG. However, a technique called spectral analysis can pick up subtle fluctuations in the alpha rhythm during sleep levels that are not apparent when visually inspecting an EEG.

The study appears in the journal PLoS One.

"This finding paves the way toward futuristic sleep treatments in which medication or other therapies are delivered moment-to-moment, only when needed, to protect sleep when the brain is most vulnerable but otherwise let natural brain rhythms run their course," study senior author Dr. Jeffrey Ellenbogen, chief of the MGH Division of Sleep Medicine, said in the news release.

"Learning more about the mechanism behind this association between the alpha rhythm and sleep fragility should lead to an even greater understanding of the factors that maintain sleep's integrity in the face of noise and other nuisances," he added.

More information

The American Academy of Sleep Medicine offers a list of healthy sleep habits.

-- Robert Preidt

SOURCE: Massachusetts General Hospital, news release, March 3, 2011


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Alcohol consumption may protect against risk of AD, particularly in female nonsmokers
2. Gadgets not related to teenagers brain pain
3. Dementia Rates Escalate as Brain Capacity Diminishes with Age
4. Researchers discover new way to kill pediatric brain tumors
5. Scientists Pinpoint Area of Brain That Fears Losing Money
6. Physical Changes in Brain Linked to Altered Spirituality
7. Pro Athletes Brains React at Olympic Speed
8. Neuroscientists reveal new links that regulate brain electrical activity
9. Brain Scan Shows What Beauty is Worth
10. Study supports alternative anti-seizure medication following acute brain injury
11. Exercise helps protect brain of multiple sclerosis patients
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Particular Brain Rhythm in Sleep Makes You More Vulnerable to Disturbances
(Date:6/26/2016)... ... ... Brent Kasmer, a legally blind and certified personal trainer is helping to develop a weight ... app plans to fix the two major problems leading the fitness industry today:, ... program , They don’t eliminate all the reasons people quit their exercise program ...
(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... "With 30 ... their specific project," said Christina Austin - CEO of Pixel Film Studios. , ... and all within Final Cut Pro X . Simply select a ProHand generator ...
(Date:6/25/2016)... ... June 25, 2016 , ... Conventional wisdom preaches the benefits of moderation, whether ... latter, setting the bar too high can result in disappointment, perhaps even self-loathing. However, ... their goal. , Research from PsychTests.com reveals that behind the tendency ...
(Date:6/24/2016)... ... June 24, 2016 , ... ... Scientific Sessions in Dallas that it will receive two significant new grants to ... came as PHA marked its 25th anniversary by recognizing patients, medical professionals and ...
(Date:6/24/2016)... TX (PRWEB) , ... June 24, 2016 , ... People ... part in Genome magazine’s Code Talker Award, an essay contest in which patients and ... an award to be presented at the 2016 National Society of Genetic Counselors (NSGC) ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... , June 23, 2016 The vast majority ... outpatient dialysis facility.  Treatments are usually 3 times a ... per visit, including travel time, equipment preparation and wait ... but especially grueling for patients who are elderly and ... skilled nursing and rehabilitation centers for some duration of ...
(Date:6/23/2016)... FRANKLIN, Tenn. , June 23, 2016 ... for automating, integrating and transforming the patient ... launch of several innovative new products and ... depth of its revenue cycle offerings. These ... establish more efficient workflows, remain compliant in ...
(Date:6/23/2016)... 2016  The National Pharmaceutical Council (NPC) today ... policy research organization as its newest member.  ... vice president and chief scientific officer, Mallinckrodt Pharmaceuticals, ... NPC Board of Directors. ... joined us in support of our efforts to ...
Breaking Medicine Technology: