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Kissing Puberty
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
Drunk and Behind the Wheel
Health educators can now
give students a realistic
taste of the perils of drunk
driving, using a DUI
simulator. Special go-carts
delay the reaction of the
brake and gas pedals and
... > full story
Surgery Without Anesthesia
Anesthesiologists use
ultrasound to locate
peripheral nerves, then
inject a nerve numbing
medication into the area. A
single injection leaves a
limb numb for several hours
... > full story
Learning to Walk Again
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, during
... > full story
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Biomedical Engineers Use Electrical Stimulus To Help Patients Lift Their Feet
Physical Therapists are helping people with central nervous system disorders learn to walk again. A wireless computer-enabled device aids those suffering from a condition called foot drop, which ... > more -
Psychiatrists Can Now Predict An Individual Patient's Response To A Drug
The first in a new generation of gene microarrays, computer chips that chemically or electrically express DNA, can predict how a person's body will metabolize about 25 percent of drugs on the market, ... > 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 -
Psychologists Use fMRI To Understand Ties Between Memories And The Imagination
Psychologists have found that thought patterns used to recall the past and imagine the future are strikingly similar. Using functional magnetic resonance imaging to show the brain at work, they have ... > more -
Neurologists Combine Electric Stimuli with Excercise to Reverse Paralysis
Paraplegic patients who still have some active nerve endings in their legs can find major improvements with a new therapy. During rehabilitation on a bicycle, special pads send electrical pulses that ... > more -
Physicists' Invention Opens Access to Computers for Persons with Tremors
For $100, people with tremors could finally be able to use a computer mouse. A new mouse adapter filters out the high-frequency, shaky component of the movement, transmitting only the steady ... > more -
Doppler Sonography Helps Psychologists Measure Attention Levels
Psychologists are finding out that even when people try to focus on a task they tend to lose concentration within 40 minutes, and sometimes as little as 10 minutes. The studies are based on a new ... > more -
Exhibit Delves into Science of Taste and Smell
An exhibit at San Francisco's Exploratorium explains the science of cooking and eating, and in particular how we taste food. Our sense of taste comes from a combination of smell receptors in the nose ... > more -
Human-Factors Engineers Focus on User-Friendliness
Human-factors engineers -- whose training includes psychology -- specialize in testing products for usability, for example checking whether a copying machine's legs get in the way, or measuring how ... > more -
Neurologists Use New Brain Scanning Device To Better Control Seizures
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 seizure much ... > more
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