Neuroscience

Brain fingerprints help doctors detect neurological disease

An EPFL scientist has found that brain fingerprints—or maps of the neural connections within our brain—can be used to detect a decline in cognitive ability. That's because the fingerprints are harder to detect in people ...

Health

Aerobic exercise boosts healthy brain aging, study finds

Neuroscientists have long known that aerobic exercises, like walking, swimming, running, or biking, are largely beneficial for brain health. Now, new research out of Assistant Professor Aga Burzynska's BRAiN Lab at Colorado ...

Neuroscience

Exoskeletons have a problem: They can strain the brain

Exoskeletons—wearable devices used by workers on assembly lines or in warehouses to alleviate stress on their lower backs—may compete with valuable resources in the brain while people work, canceling out the physical ...

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.

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