(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 the behavior ...
(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 brain is able ...
(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.
May 17, 2011
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What's in a dream? For Yukiyasu Kamitani, the question is important. He has been testing how dreams relate to brain activity and what really is the function of dreaming, He leads a team of researchers at the ATR Computational ...
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 ...
Apr 26, 2011
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(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 in the July ...
Jul 12, 2012
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(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.
Sep 10, 2012
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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 syllables in spoken ...
Sep 10, 2012
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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 ...
Mar 26, 2012
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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 ...
Nov 9, 2011
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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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