News tagged with brain waves
Wireless signals could transform brain trauma diagnostics
New technology developed at the University of California, Berkeley, is using wireless signals to provide real-time, non-invasive diagnoses of brain swelling or bleeding.
Neuroscience
May 14, 2013 |
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Study finds analysis of many species required to better understand the brain
To get a clear picture of how humans and other mammals form memories and find their way through their surroundings, neuroscientists must pay more attention to a broad range of animals rather than focus on ...
Neuroscience
Apr 29, 2013 |
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Rats' and bats' brains work differently on the move
A new study of brain rhythms in bats and rats challenges a widely used model - based on studies in rodents - of how animals navigate their environment. To get a clearer picture of the processes at work in ...
Neuroscience
Apr 18, 2013 |
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Scientists probe the source of a pulsing signal in the sleeping brain
New findings clarify where and how the brain's "slow waves" originate. These rhythmic signal pulses, which sweep through the brain during deep sleep at the rate of about one cycle per second, are assumed ...
Neuroscience
Apr 18, 2013 |
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Mice show innate ability to vocalize: Deaf or not, courting male mice make same sounds
Scientists have long thought that mice might serve as a model for how humans learn to vocalize. But new research led by scientists at Washington State University-Vancouver has found that, unlike humans and ...
Neuroscience
Mar 26, 2013 |
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'Brain waves' challenge area-specific view of brain activity
Our understanding of brain activity has traditionally been linked to brain areas – when we speak, the speech area of the brain is active. New research by an international team of psychologists led by David Alexander and ...
Neuroscience
Mar 20, 2013 |
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Sleep study reveals how the adolescent brain makes the transition to mature thinking
(Medical Xpress)—A new study conducted by monitoring the brain waves of sleeping adolescents has found that remarkable changes occur in the brain as it prunes away neuronal connections and makes the major ...
Neuroscience
Mar 19, 2013 |
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Solving the 'Cocktail Party Problem': How we can focus on 1 speaker in noisy crowds
In the din of a crowded room, paying attention to just one speaker's voice can be challenging. Research in the March 6 issue of the Cell Press journal Neuron demonstrates how the brain hones in on one sp ...
Neuroscience
Mar 06, 2013 |
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Computer model may help athletes and soldiers avoid brain damage and concussions
(Medical Xpress)—Concussions can occur in sports and in combat, but health experts do not know precisely which jolts, collisions and awkward head movements during these activities pose the greatest risks to the brain. To ...
Neuroscience
Mar 05, 2013 |
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Study reveals potential target to better treat, cure anxiety disorders
Researchers at Boston University School of Medicine (BUSM) have, for the first time, identified a specific group of cells in the brainstem whose activation during rapid eye movement (REM) sleep is critical for the regulation ...
Neuroscience
Mar 05, 2013 |
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Researchers discover a biological marker of dyslexia
(Medical Xpress)—Though learning to read proceeds smoothly for most children, as many as one in 10 is estimated to suffer from dyslexia, a constellation of impairments unrelated to intelligence, hearing or vision that make ...
Neuroscience
Feb 19, 2013 |
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Evidence shows concussions require long-term follow-up for players
As the National Football League braces for lawsuits by 4000 former players alleging the league failed to protect them from the long-term consequences of concussions, game-changing research by a leading Canadian researcher ...
Health
Feb 17, 2013 |
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Brain does not process sensory information sufficiently, research team discovers
(Medical Xpress)—The reason why some people are worse at learning than others has been revealed by a research team from Berlin, Bochum, and Leipzig, operating within the framework of the Germany-wide network ...
Neuroscience
Feb 13, 2013 |
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Neuroprosthesis gives rats the ability to 'touch' infrared light
Researchers have given rats the ability to "touch" infrared light, normally invisible to them, by fitting them with an infrared detector wired to microscopic electrodes implanted in the part of the mammalian brain that processes ...
Neuroscience
Feb 12, 2013 |
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Fluctuations in size of brain waves contribute to information processing
Cyclical variations in the size of brain wave rhythms may participate in the encoding of information by the brain, according to a new study led by Colin Molter of the Neuroinformatics Japan Center, RIKEN ...
Neuroscience
Feb 08, 2013 |
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Electroencephalography
Electroencephalography (EEG) is the recording of electrical activity along the scalp produced by the firing of neurons within the brain. In clinical contexts, EEG refers to the recording of the brain's spontaneous electrical activity over a short period of time, usually 20–40 minutes, as recorded from multiple electrodes placed on the scalp. In neurology, the main diagnostic application of EEG is in the case of epilepsy, as epileptic activity can create clear abnormalities on a standard EEG study. A secondary clinical use of EEG is in the diagnosis of coma and encephalopathies. EEG used to be a first-line method for the diagnosis of tumors, stroke and other focal brain disorders, but this use has decreased with the advent of anatomical imaging techniques such as MRI and CT.
Derivatives of the EEG technique include evoked potentials (EP), which involves averaging the EEG activity time-locked to the presentation of a stimulus of some sort (visual, somatosensory, or auditory). Event-related potentials refer to averaged EEG responses that are time-locked to more complex processing of stimuli; this technique is used in cognitive science, cognitive psychology, and psychophysiological research.
For more information about Electroencephalography, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
