Watch the brain jiggle with each heartbeat | Science News

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Watch the brain jiggle with each heartbeat

The imaging method could help scientists spot abnormal motion

By
7:00am, June 26, 2018
brain jiggling

BRAIN IN MOTION  By amplifying tiny movements, a new technique reveals how the brain wiggles as fluid moves in and out. 

With every heartbeat, fluid squishes through the brain and jiggles it like a bowl full of jelly.

A new twist on magnetic resonance imaging illuminates these pulsing brain ripples, movements so subtle that they had escaped detection by current imaging technology. Abnormal brain motion could signal trouble, such as aneurysms or damage from a concussion.

In the new work, scientists honed an existing method called amplified MRI, a technique that stitches together multiple images taken at precise times of the heartbeat. Using an algorithm that exaggerates tiny movements, researchers at Stanford University, Stevens Institute of Technology in Hoboken, N.J., and the University of Auckland in New Zealand created a movie of the brain’s rhythmic writhing as blood and cerebrospinal fluid pump in and drain out.

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