Extra cerebrospinal fluid – which normally flushes out waste - was pumped into the brain after people watched intense visual stimuli
Lewis’s team took advantage of a new brain-scanning technique, using existing magnetic resonance imaging machines, that highlights any CSF that has newly entered into the fourth ventricle of the brain, a cavity at the base of the head. Fluid that enters this chamber drains out through the glymphatic system.
They asked 20 volunteers to watch a screen inside the scanner that displayed a pattern known to cause high brain activity: a flickering black- and-white spiral chequerboard. The display was turned on and off at 16-second intervals for about an hour, apart from during short breaks.When the pattern was shown, this caused a rise in blood flow to the brain’s visual centres, as expected. When the screen went dark, blood flow reduced and CSF flow into the brain increased.
The brain-scanning technique couldn’t reveal if the fluid left through the glymphatic vessels, nor if there was a reduction of waste products within the brain. These are questions that need to be tackled next, says Rosario de Natale. “This is opening a new door.” “It’s still an open question whether the fluid goes directly into the brain tissue or if it sloshes around in the ventricle. But we definitely think that it has an effect on fluid in the rest of the brain,” says team member“We’re very interested now to understand the effect of these changes in fluid flow and how it intersects with brain health,” says Lewis.
México Últimas Noticias, México Titulares
Similar News:También puedes leer noticias similares a ésta que hemos recopilado de otras fuentes de noticias.
Extra Extra: The bad tippers are feeling emboldenedBecause bad tippers are feeling bold, here are your evening links: - Shenanigans around the Flatiron Building auction - The NYPD's latest youth outreach program involves drone soccer - Italy is trying to ban lab-grown meat to preserve food heritage + more
Leer más »
Extra Extra: Jonathan Majors' lawyer says the actor called 911 out of concern for his acquaintance's mental healthHere's what's happening in NYC: - Lifeguards are getting a raise. - Jonathan Majors' attorney says the incident that led to his assault arrest began with the actor calling 911. - Afternoon naps can't replace a good night's sleep. + more!
Leer más »
Extra Time: Recent gun violence in U.S. schools leave many concernedNew York&39;s source for breaking news and live streaming video online. Covering New York City, New Jersey, Long Island and all of the greater New York Area.
Leer más »
GBP/USD: Extra gains look likely above 1.2400 – UOBIn the view of Economist Lee Sue Ann and Markets Strategist Quek Ser Leang at UOB Group, GBP/USD could see its gains accelerated on a close above 1.24
Leer más »
Natural Gas Futures: Scope for extra lossesCME Group’s flash data for natural gas futures markets noted traders increased their open interest positions for the second session in a row on Tuesda
Leer más »
EUR/USD Price Analysis: Extra gains appear in store near termEUR/USD climbs to fresh multi-day highs near 1.0870 amidst the continuation of the weekly rebound on Wednesday. The likelihood of extra advances appea
Leer más »