News tagged with eeg
Melon focus headband turns to Kickstarter for rollout plans
(Medical Xpress)—What if the quality of your work depends more on your focus on the piano keys or canvas or laptop than your musical or painting or computing skills? If target users can be convinced, they ...
Neuroscience
May 17, 2013 |
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Researchers develop novel Brain Training Device to reconnect brain and paralyzed limb after stroke
The world's first Brain Training Device has given a ray of new hope to the recovery of survivors after stroke. Developed by researchers of The Hong Kong Polytechnic University, this novel device can detect brainwave and control ...
Neuroscience
May 16, 2013 |
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Theta brainwaves reflect ability to beat built-in bias
Vertebrates are predisposed to act to gain rewards, and to lay low to avoid punishment. Try to teach chickens to back away from food in order to obtain it, and you'll fail, as researchers did in 1986. But ...
Neuroscience
May 07, 2013 |
4.8 / 5 (6) |
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Memory, the adolescent brain and lying: The limits of neuroscientific evidence in the law
Brain scans are increasingly able to reveal whether or not you believe you remember some person or event in your life. In a new study presented at a cognitive neuroscience meeting today, researchers used fMRI brain scans ...
Neuroscience
Apr 16, 2013 |
5 / 5 (1) |
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EEG identifies seizures in hospital patients, study finds
Electroencephalogram (EEG), which measures and records electrical activity in the brain, is a quick and efficient way of determining whether seizures are the cause of altered mental status (AMS) and spells, according to a ...
Neuroscience
Mar 27, 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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Uplifting music can boost mental capacity, research finds
(Medical Xpress)—Uplifting concertos from Vivaldi's The Four Seasons can boost mental alertness, according to research from Northumbria University.
Psychology & Psychiatry
Mar 19, 2013 |
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Research team launches groundbreaking drug trial in Africa
Determined to bring relief to seizure victims, a Michigan State University research team this month begins a groundbreaking clinical drug trial that could help prevent a quarter-million African children from developing epilepsy ...
Medications
Feb 16, 2013 |
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Fear factor: Study shows brain's response to scary stimuli
(Medical Xpress)—Driving through his hometown, a war veteran with post-traumatic stress disorder may see roadside debris and feel afraid, believing it to be a bomb. He's ignoring his safe, familiar surroundings and only ...
Neuroscience
Feb 08, 2013 |
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Despite reported dislike, older readers put in less effort when using e-readers, researchers find
Reading text on digital devices like tablet computers requires less effort from older adults than reading on paper, according to research published February 6 in the open access journal PLOS ONE by Matthias Schlesewsky and co ...
Other
Feb 06, 2013 |
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Two minds can be better than one: Thought-controlled virtual spacecraft
Scientists at the University of Essex have been working with NASA on a project where they controlled a virtual spacecraft by thought alone.
Neuroscience
Feb 05, 2013 |
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Science needs a second opinion: Researchers find flaws in study of patients in 'vegetative state'
A team of researchers led by Weill Cornell Medical College is calling into question the published statistics, methods and findings of a highly publicized research study that claimed bedside electroencephalography (EEG) identified ...
Neuroscience
Jan 24, 2013 |
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Information better retained with reinforcing stimuli delivered during sleep, research finds
When you're studying for an exam, is there something you can do while you sleep to retain the information better?
Neuroscience
Jan 15, 2013 |
5 / 5 (3) |
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New implant replaces impaired middle ear
(Medical Xpress)—Functionally deaf patients can gain normal hearing with a new implant that replaces the middle ear. The unique invention from the Chalmers University of Technology has been approved for ...
Medical research
Jan 14, 2013 |
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Family's economic situation influences brain function in children
Children of low socioeconomic status work harder to filter out irrelevant environmental information than those from a high-income background because of learned differences in what they pay attention to, according to new research ...
Psychology & Psychiatry
Nov 28, 2012 |
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Electroencephalography
Electroencephalography (EEG) is the recording of electrical activity along the scalp. EEG measures voltage fluctuations resulting from ionic current flows within the neurons of 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, encephalopathies, and brain death. 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 with high (<1 mm) spatial resolution like as MRI and CT. Despite limited spatial resolution, EEG continues to be a valuable tool for research and diagnosis, especially when millisecond-range temporal resolution (not possible with CT or MRI) is required.
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 (ERPs) 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.
