News tagged with brain activity
Brain-to-brain interface allows transmission of tactile and motor information between rats
Researchers have electronically linked the brains of pairs of rats for the first time, enabling them to communicate directly to solve simple behavioral puzzles. A further test of this work successfully linked ...
Neuroscience
Feb 28, 2013 |
4.8 / 5 (36) |
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Body clocks of depressed people altered at cell level, researchers show
Every cell in our bodies runs on a 24-hour clock, tuned to the night-day, light-dark cycles that have ruled us since the dawn of humanity. The brain acts as timekeeper, keeping the cellular clock in sync ...
Medical research
May 13, 2013 |
4 / 5 (19) |
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Brazilian mediums shed light on brain activity during a trance state
Researchers at Thomas Jefferson University and the University of Sao Paulo in Brazil analyzed the cerebral blood flow (CBF) of Brazilian mediums during the practice of psychography, described as a form of writing whereby ...
Neuroscience
Nov 16, 2012 |
4.3 / 5 (13) |
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Researchers discover sleep mechanism critical to memory consolidation and find that Ambien enhances the process
(Medical Xpress)—A team of sleep researchers led by UC Riverside psychologist Sara C. Mednick has confirmed the mechanism that enables the brain to consolidate memory and found that a commonly prescribed ...
Neuroscience
Mar 12, 2013 |
4 / 5 (13) |
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Could scientists peek into your dreams? (w/ video)
(HealthDay)—Talk about mind reading. Researchers have discovered a potential way to decode your dreams, predicting the content of the visual imagery you've experienced on the basis of neural activity recorded ...
Neuroscience
Apr 04, 2013 |
4.5 / 5 (11) |
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Do brain cells need to be connected to have meaning?
(Medical Xpress)—The classic theory of the brain is one of connections, in which the brain consists of a network of neurons that interact with each other to allow us to think, see, interpret, and understand ...
Neuroscience
Dec 04, 2012 |
4.9 / 5 (9) |
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Study indicates reverse impulses clear useless information, prime brain for learning
(Medical Xpress)—When the mind is at rest, the electrical signals by which brain cells communicate appear to travel in reverse, wiping out unimportant information in the process, but sensitizing the cells ...
Neuroscience
Mar 19, 2013 |
4.9 / 5 (9) |
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Scientists reveal drinking champagne could improve memory
(Medical Xpress)—New research shows that drinking one to three glasses of champagne a week may counteract the memory loss associated with ageing, and could help delay the onset of degenerative brain disorders, ...
Health
May 08, 2013 |
4.4 / 5 (9) |
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The brain's circuit diagram: New method facilitates the mapping of connections between neurons
(Medical Xpress)—The human brain accomplishes its remarkable feats through the interplay of an unimaginable number of neurons that are interconnected in complex networks. A team of scientists has now developed ...
Neuroscience
Oct 18, 2012 |
4.9 / 5 (8) |
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How the brain loses and regains consciousness (w/ video)
Since the mid-1800s, doctors have used drugs to induce general anesthesia in patients undergoing surgery. Despite their widespread use, little is known about how these drugs create such a profound loss of ...
Neuroscience
Mar 04, 2013 |
4.9 / 5 (8) |
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New study shows what happens in the brain to make music rewarding
A new study reveals what happens in our brain when we decide to purchase a piece of music when we hear it for the first time. The study, conducted at the Montreal Neurological Institute and Hospital – The ...
Neuroscience
Apr 11, 2013 |
4.5 / 5 (8) |
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Scientists discover that DNA damage occurs as part of normal brain activity
Scientists at the Gladstone Institutes have discovered that a certain type of DNA damage long thought to be particularly detrimental to brain cells can actually be part of a regular, non-harmful process. The team further ...
Alzheimer's disease & dementia
Mar 24, 2013 |
5 / 5 (7) |
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Research discovers how brain activity changes when anesthesia induces unconsciousness
Investigators at Massachusetts General Hospital (MGH) and Massachusetts Institute of Technology (MIT) have identified for the first time a pattern of brain activity that appears to signal exactly when patients ...
Neuroscience
Nov 05, 2012 |
4.9 / 5 (7) |
2
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Lost your keys? Your cat? The brain can rapidly mobilize a search party
A contact lens on the bathroom floor, an escaped hamster in the backyard, a car key in a bed of gravel: How are we able to focus so sharply to find that proverbial needle in a haystack? Scientists at the University ...
Neuroscience
Apr 21, 2013 |
4.4 / 5 (7) |
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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 |
5 / 5 (6) |
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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.
