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 |
3.7 / 5 (3) |
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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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Babies' ability to detect complex rules in language outshines that of adults: study
New research examining auditory mechanisms of language learning in babies has revealed that infants as young as three months of age are able to automatically detect and learn complex dependencies between ...
Psychology & Psychiatry
Sep 10, 2012 |
3.8 / 5 (4) |
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Monitoring brain activity during study can help predict test performance
(Medical Xpress)—Research at Sandia National Laboratories has shown that it's possible to predict how well people will remember information by monitoring their brain activity while they study.
Psychology & Psychiatry
Sep 10, 2012 |
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Neuroscientists find it's never too late to retrain brain
(Medical Xpress)—UCSF neuroscientists have found that by training on attention tests, people young and old can improve brain performance and multitasking skills.
Neuroscience
Nov 02, 2012 |
4.3 / 5 (4) |
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Neuroscientists link brain-wave pattern to energy consumption
Different brain states produce different waves of electrical activity, with the alert brain, relaxed brain and sleeping brain producing easily distinguishable electroencephalogram (EEG) patterns. These patterns ...
Neuroscience
Feb 08, 2012 |
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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 |
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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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Brain waves reveal video game aptitude
Scientists report that they can predict who will improve most on an unfamiliar video game by looking at their brain waves.
Neuroscience
Oct 24, 2012 |
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Smokers could be more prone to schizophrenia, study finds
Smoking alters the impact of a schizophrenia risk gene. Scientists from the universities of Zurich and Cologne demonstrate that healthy people who carry this risk gene and smoke process acoustic stimuli in a similarly deficient ...
Diseases, Conditions, Syndromes
Mar 26, 2012 |
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Teaching the neurons to meditate
In the late 1990s, Jane Anderson was working as a landscape architect. That meant she didn't work much in the winter, and she struggled with seasonal affective disorder in the dreary Minnesota winter months. ...
Psychology & Psychiatry
Jul 07, 2011 |
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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 |
4.7 / 5 (3) |
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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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No hands required -- scientists achieve precise control of virtual flight
Scientists have designed a novel, noninvasive system that allows users to control a virtual helicopter using only their minds, as reported in the online journal PLoS ONE on Oct. 26. The researchers, led by Dr. Bin He of ...
Neuroscience
Oct 26, 2011 |
not rated yet |
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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.
