News tagged with brain activity
Diagnosing developmental coordination disorder
Children showing difficulty carrying out routine actions, such as getting dressed, playing with particular types of games, drawing, copying from the board in school and even typing at the computer, could be suffering from ...
Medicine & Health / Psychology & Psychiatry
4 hours ago |
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Visual working memory not as specialized in the brain as visual encoding, study finds
Researchers have long known that specific parts of the brain activate when people view particular images. For example, a region called the fusiform face area turns on when the eyes glance at faces, and another region called ...
Medicine & Health / Neuroscience
Feb 06, 2012 |
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It's not solitaire: Brain activity differs when one plays against others
Researchers have found a way to study how our brains assess the behavior – and likely future actions – of others during competitive social interactions. Their study, described in a paper in the Proceedings of the National Academy of Sciences, is the first to use a ...
Medicine & Health / Neuroscience
Feb 06, 2012 |
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Football findings suggest concussions caused by series of hits
A two-year study of high school football players suggests that concussions are likely caused by many hits over time and not from a single blow to the head, as commonly believed.
Feb 02, 2012 |
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Decoding brain waves to eavesdrop on what we hear
Neuroscientists may one day be able to hear the imagined speech of a patient unable to speak due to stroke or paralysis, according to University of California, Berkeley, researchers.
Medicine & Health / Neuroscience
Jan 31, 2012 |
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fMRI brain imaging illuminates magic mushrooms' psychedelic effects
Brain scans of people under the influence of the psilocybin, the active ingredient in magic mushrooms, have given scientists the most detailed picture to date of how psychedelic drugs work. The findings of two studies being ...
Medicine & Health / Neuroscience
Jan 23, 2012 |
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Brain MRIs may provide an early diagnostic marker for dyslexia
Children at risk for dyslexia show differences in brain activity on MRI scans even before they begin learning to read, finds a study at Children's Hospital Boston. Since developmental dyslexia responds to early intervention, ...
Medicine & Health / Psychology & Psychiatry
Jan 23, 2012 |
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Neuroscientists explore how longstanding conflict influences empathy for others
MIT postdoc Emile Bruneau has long been drawn to conflict — not as a participant, but an observer. In 1994, while doing volunteer work in South Africa, he witnessed firsthand the turmoil surrounding ...
Medicine & Health / Neuroscience
Jan 23, 2012 |
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A family history of alcoholism may make adolescent brains respond differently
Researchers know that adolescents with a family history of alcoholism (FHP) are at risk for developing alcohol use disorders. Some studies have shown that, compared to their peers, FHP adolescents have deficits in behavioral ...
Jan 16, 2012 |
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Neural balls and strikes: Where categories live in the brain
Hundreds of times during a baseball game, the home plate umpire must instantaneously categorize a fast-moving pitch as a ball or a strike. In new research from the University of Chicago, scientists have pinpointed an area ...
Medicine & Health / Neuroscience
Jan 15, 2012 |
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How the brain routes traffic for maximum alertness
A new UC Davis study shows how the brain reconfigures its connections to minimize distractions and take best advantage of our knowledge of situations.
Medicine & Health / Neuroscience
Jan 12, 2012 |
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Fusion plasma research helps neurologists to hear above the noise
Fusion plasma researchers at the University of Warwick have teamed up with Cambridge neuroscientists to apply their expertise developed to study inaccessible fusion plasmas in order to significantly improve the understanding ...
Medicine & Health / Neuroscience
Jan 10, 2012 |
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Study links brain activity to delusion-like experience
In a new study from the Centre for Addiction and Mental Health (CAMH), people with schizophrenia showed greater brain activity during tests that induce a brief, mild form of delusional thinking. This effect wasn't seen in ...
Medicine & Health / Psychology & Psychiatry
Jan 10, 2012 |
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Study finds drunken people aware of poor decisioins
A new study says that people who commit blunders while under the influence of alcohol know they're doing it; they just don't care.
Medicine & Health / Psychology & Psychiatry
Jan 03, 2012 |
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New method of infant pain assessment
Recently, the accuracy of current methods of pain assessment in babies have been called into question. New research from London-area hospitals and the University of Oxford measures brain activity in infants to better understand ...
Dec 21, 2011 |
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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.
