News tagged with brain waves

Related topics: brain · proceedings of the national academy of sciences · brain activity · electrical activity

Improving memory with magnets

The ability to remember sounds, and manipulate them in our minds, is incredibly important to our daily lives—without it we would not be able to understand a sentence, or do simple arithmetic. New research is shedding light ...

Mar 27, 2017
popularity146 comments 1

The rhythm that makes memories permanent

Every time we learn something new, the memory does not only need to be acquired, it also needs to be stabilized in a process called memory consolidation. Brain waves are considered to play an important role in this process, ...

Dec 29, 2016
popularity7 comments 0

Rare infant seizure disorder often missed

(HealthDay)—Many infants with a rare form of epilepsy known as infantile spasms aren't promptly diagnosed, and that delay can lead to devastating health consequences, new research indicates.

Dec 06, 2016
popularity12 comments 0

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.

This text uses material from Wikipedia, licensed under CC BY-SA

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