Recent technological advances have enabled the development of increasingly advanced systems and devices for measuring brain activity in both research and medical settings. A concept that has been widely explored and yet not ...
(Medical Xpress)—A team of researchers with members from institutions in the U.S., Italy and Switzerland has found evidence that suggests people have dreams during both REM and non-REM sleep cycles. In their paper published ...
(Medical Xpress)—Brain-computer interfaces (BCIs), a longtime staple of science fiction, have slowly been realized over the last 20 years. Researchers have developed neuroprosthetics that, with development, hold promise ...
The human mind can rapidly absorb and analyze new information as it flits from thought to thought. These quickly changing brain states may be encoded by synchronization of brain waves across different brain regions, according ...
Jun 12, 2014
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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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If you've ever lost your keys or stuck the milk in the cupboard and the cereal in the refrigerator, you may have been the victim of a tired brain region that was taking a quick nap.
Apr 27, 2011
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A team of neuroscientists at the University of Padua, in Italy, working with a colleague from CNRS and Université Paris Cité, has found evidence suggesting that neural development of babies still in the womb is impacted ...
Researchers have modified a commercial virtual reality headset, giving it the ability to measure brain activity in order to examine how we react to hints, stressors and other outside forces.
Aug 4, 2023
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A few minutes of data recorded from a single electrode placed on top of the head may be sufficient to predict thinking problems, including dementia, in patients with Parkinson's disease (PD). The finding from a new University ...
Jun 12, 2023
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A recent Northwestern Medicine study has demonstrated how neocortical brain networks fluctuate in synchrony to support neural mechanisms that allow information to enter working memory and change goals on the fly.
Jun 5, 2023
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Electroencephalography (EEG) is the recording of electrical activity along the scalp. EEG measures voltage fluctuations resulting from ionic current flows within the neurons of 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, encephalopathies, and brain death. 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 with high (<1 mm) spatial resolution like as MRI and CT. Despite limited spatial resolution, EEG continues to be a valuable tool for research and diagnosis, especially when millisecond-range temporal resolution (not possible with CT or MRI) is required.
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 (ERPs) 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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