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Brain's Puberty Switch
Researchers have discovered
the precise chemical chain
reaction that could be the
much-sought-after puberty
trigger: The KiSS-1 gene,
which produces a protein in
the hypothalamus, a part of
the brain, which regulates
... > full story
Pinpointing Problems In The Brain
Doctors are now using a new
kind of brain scan called
magnetoencephalography
(MEG), which measures brain
activity in real time. In
some cases, MEG can pinpoint
the source of an epileptic
... > full story
Stroke Stopper
A new "wingspan" stent helps
restore blood flow for
patients with intracranial
atherosclerotic disease, or
ICAD. Surgeons insert the
stent up the leg arteries,
guide it to the brain, then
let its wire mesh expand,
... > full story
Breakthrough Brain Surgery
For more than a century,
neurosurgeons have accessed
the brain through the nose,
but only recently did they
successfully removed tumors
with such minimally invasive
procedures, leading to
... > full story
Browse Science Videos
1 to 10 of 86 videos
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Physical Therapists Use A Split-belt Treadmill To Help Stroke Patients Walk More Easily
Physical therapists used motion detector cameras to analyze how patients move on a specially designed split-belt treadmill--the belt is divided to move together or at independent speeds. When the ... > more -
Vascular Surgeons Lower Blood Pressure with Implanted Device
A new cell phone-sized implant can keep blood pressure in check from within the chest, just like a pacemaker controls heartbeats. When the device detects a rise in pressure, it sends electrical ... > more -
Neurosurgeonýs Drive Propels Him From Border Fence To Faculty
Physician scientist Alfredo Quinones has come a long way since illegally entering the United States. Today he is a faculty member at Johns Hopkins University. Quinones is a respected brain surgeon ... > more -
Psychiatrists Can Predict Onset of Alzheimer's with New EEG Test
Using new computer software that analyzes EEG data, psychiatrists can now better distinguish early signs of Alzheimer's from normal aging, by spotting marked differences between the left and right ... > more -
Pediatric Neurologists Use MRI to Understand How Strokes Impair Verbal Abilities
Children who have speech-impairing strokes often learn to talk again, while adult stroke victims can lose their verbal abilities for good. By giving reading and verbal tests inside the MRI, ... > more -
Neurologists, Imaging Scientists Use Medical Physics to Spot Disease in Blood Vessels
A new brain-imaging method allows physicians to diagnose Alzheimer's before its onset. A radioactive dye is injected in the blood and travels to the brain, where it attaches to plaque deposits of ... > more -
Neurologists Use GPS For The Brain As Guide In Surgery
Neurosurgeons' jobs are made easier by a 3-D CT scan produced by an advanced imaging system. It produces a computerized image of blood vessels and surrounding soft tissue, which can be rotated for ... > more -
Neurosurgeons Cut Surgical Procedure Time with New Device
In a method called deep brain stimulation, certain movement disorders are treated by implanting wires in the brain that deliver electrical signals. The surgical procedure can last up to eight hours, ... > more -
Molecular Biologists Devise Strategy To Starve Brain Tumors
Brain tumor researchers have found that brain tumors arise from cancer stem cells living within tiny protective areas formed by blood vessels in the brain. Killing those cells is a promising ... > more -
MRIs Peek into the Brains of Synesthesia Patients
Cognitive neuroscientists have now documented hundreds of cases of synesthesia -- the condition in which one sense triggers the response of a different one. Using functional magnetic resonance ... > more
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