News tagged with electroencephalography
The error-correcting brain: New insights into the neurobiology of adaptive behavior
(Medical Xpress) -- A key phenomenon studied by neuroscientists is the brain’s ability to recognize errors when they occur, link them to the associated behavior, and apply those errors in a way that modifies ...
Neuroscience
Oct 27, 2011 |
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Face the facts: Neural integration transforms unconscious face detection into conscious face perception
(Medical Xpress)—The apparent ease and immediacy of human perception is deceptive, requiring highly complex neural operations to determine the category of objects in a visual scene. Nevertheless, the human ...
Neuroscience
Dec 31, 2012 |
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Decoding brainwaves lets scientists read minds
(Medical Xpress) -- While currently in the realm of sci-fi fantasy, the ability to read people’s minds has taken a step closer to reality thanks to neuroscientists at the University of Glasgow.
Neuroscience
May 17, 2011 |
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New invasive imaging technique to monitor brain function
A new video article in JoVE, the Journal of Visualized Experiments, describes a novel procedure to monitor brain function and aid in functional mapping of patients with diseases such as epilepsy. This procedur ...
Neuroscience
Jun 26, 2012 |
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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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Grammar errors? The brain detects them even when you are unaware
Your brain often works on autopilot when it comes to grammar. That theory has been around for years, but University of Oregon neuroscientists have captured elusive hard evidence that people indeed detect ...
Neuroscience
May 13, 2013 |
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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 |
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When the mind controls the machines
More than a hundred patients suffering from severe motor impairments have voluntarily participated in the development of non-invasive brain-machine interfaces. The main purpose of these machines is to allow ...
Neuroscience
Jan 24, 2013 |
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Supplement mixture improves memory in mild Alzheimer's
(HealthDay) -- A supplement mixture (Souvenaid) containing dietary precursors and specific nutrients can improve memory in drug-naive patients with mild Alzheimer's disease (AD), according to a study published ...
Alzheimer's disease & dementia
Jul 12, 2012 |
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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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EEG can detect awareness in people previously thought to be in permanently vegetative state
A study published Online First by the Lancet shows that -- using a cheap, portable electroencephalography (EEG) device -- awareness can be detected in people previously thought to be in a permanently vegetative state. The ar ...
Medical research
Nov 09, 2011 |
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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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Signal analysis techniques used to map normal neural activity
(Medical Xpress)—Looking at a tangled mass of network cables plugged into a crowded router doesn't yield much insight into the network traffic that runs through the hardware.
Neuroscience
Sep 13, 2012 |
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Teen sleep study adds to evidence of a 'neural fingerprint'
Teens are rarely described as stable, so when something about their rapidly changing brains remains placidly unaltered, neuroscientists take notice. Such is the case in a new study of electroencephalography (EEG) readings ...
Neuroscience
Apr 26, 2011 |
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Differences in diagnosis, treatment of nonepileptic seizures in US, Chile
Epileptic and psychogenic nonepileptic seizures (PNES) may look similar, but actually have different causes and treatments. Up to 20 percent of patients diagnosed with epilepsy actually have PNES, which are not treated by ...
Neuroscience
Oct 02, 2012 |
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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.
