Brain-computer interfaces, or BCIs, hold immense potential for individuals with a wide range of neurological conditions, but the road to implementation is long and nuanced for both the invasive and noninvasive versions of ...
Jun 13, 2024
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Deep brain stimulation, by implanted electrodes that deliver electrical pulses to the brain, is often used to treat Parkinson's disease and other neurological disorders. However, the electrodes used for this treatment can ...
Jun 4, 2024
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The timing of our brain waves shapes how we perceive our environment. We are more likely to perceive events when their timing coincides with the timing of relevant brain waves. Lead scientist Sanne ten Oever and her co-authors ...
Jun 3, 2024
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Lucy, with her boundless puppy-like energy even at 12 years old, is more than just a pet to Susan Ketcham. She's now part of a research project that could transform the way we treat brain cancer—in both dogs and humans.
May 22, 2024
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For the first time, researchers led by Professor Dr. Petra Ritter's team have succeeded in explaining the propagation of traveling waves of activity in the human brain using a computer simulation. Previous studies indicate ...
May 16, 2024
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Climate change, and its effects on weather patterns and adverse weather events, is likely to negatively affect the health of people with brain conditions, argues a UCL-led team of researchers.
May 15, 2024
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Biomedical engineer Annabelle Singer has spent the past decade developing a noninvasive therapy for Alzheimer's disease that uses flickering lights and rhythmic tones to modulate brain waves. Now she has discovered that the ...
May 10, 2024
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Brain-computer interfaces (BCIs) have the potential to make life easier for people with motor or speech disorders, allowing them to manipulate prosthetic limbs and employ computers, among other uses. In addition, healthy ...
May 1, 2024
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It could be very informative to observe the pixels on your phone under a microscope, but not if your goal is to understand what a whole video on the screen shows. Cognition is much the same kind of emergent property in the ...
Apr 17, 2024
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In the space of just a few seconds, a person walking down a city block might check their phone, yawn, worry about making rent, and adjust their path to avoid a puddle. The smell from a food cart could suddenly conjure a memory ...
Mar 8, 2024
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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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