Brain & Nervous System: Tests & Diagnosis

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  • Magnetic Resonance Imaging (MRI) of the Spine

    06/22/07, Healthwise

    Magnetic resonance imaging (MRI) is a test that uses a magnetic field and pulses of radio wave energy to make pictures of the spine. In many cases MRI gives different information about structures in the body than can be seen with an

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  • Electronystagmogram (ENG)

    07/29/08, Healthwise

    An electronystagmogram (ENG) measures normal eye movement and involuntary rapid eye movements called nystagmus. It also checks the muscles that control eye movements. ENG checks how well the eyes, inner ears, and brain help you keep y

    60
  • Positron Emission Tomography (PET)

    09/11/07, Healthwise

    Positron emission tomography (PET) is a test that uses a special type of camera and a tracer (radioactive chemical) to look at organs in the body.

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  • Angiogram of the Head and Neck

    12/30/08, Healthwise

    An angiogram of the head and neck is an X-ray test that uses a special dye and camera (fluoroscopy) to take pictures of the blood flow in the blood vessels of the head and neck. An angiogram of the neck (carotid angiogram) can be used to

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  • Magnetic Resonance Imaging (MRI) of the Head

    12/30/08, Healthwise

    Magnetic resonance imaging (MRI) is a test that uses a magnetic field and pulses of radio wave energy to take pictures of the head. In many cases, MRI gives information that cannot be seen on an X-ray, ultrasound, or computed tomo

    94
  • Computed Tomography (CT) Scan of the Head and Face

    07/19/07, Healthwise

    A computed tomography (CT) scan uses X-rays to make pictures of the head and face.

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  • Magnetic Resonance Imaging (MRI)

    06/22/07, Healthwise

    Magnetic resonance imaging (MRI) is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside the body. In many cases, MRI gives different information about structures in the body t

    100
  • Do humans really only use 10 to 20 percent of their brains?

    10/02/06, Why Do Men Fall Asleep After Sex?

    There are many different nonscientific answers to this question. A wife might argue that her husband uses less than 10 percent of his brain at times, a coach often tells his players that they aren't using their heads enough, and we often think that our politicians don't use their brains at all. The truth is that there is no way to quantify how much of our brains we use at any given time. Humans definitely use more than 10 to 20 percent of their brains, so this myth is definitely false.

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  • Why don't men listen?

    10/02/06, Why Do Men Fall Asleep After Sex?

    In the September 2005 issue of the journal Neuroimage, psychiatric researchers at the University of Sheffield reported that male and female voices activate distinct regions of the male brain. The scientists monitored the brain activity of twelve men as they listened to male and female voices. They found that in men, women's voices stimulate an area of the brain used for processing complex sounds, like music. Male voices, on the other hand, activate a region of the brain used for producing imagery. This may suggest that, at least for men, the female voice is more complex and more difficult to hear and understand.

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  • Ginkgo biloba

    09/01/07, Healthwise

    Ginkgo is also well-known for its effect on memory and thinking (cognitive function). It may enhance cognitive performance in healthy older adults,8 in people with age-related cognitive decline, and in people with Alzheimer's disease.

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