Dementia is not an inevitable consequence of aging. It's thought that around 40% of dementia cases could be prevented (or at least delayed) by changing certain lifestyle habits.
Jul 24, 2024
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People who struggle with facial recognition can find forming relationships a challenge, leading to mental health issues and social anxiety. A new study provides insights into prosopagnosia or face blindness, a condition that ...
Jul 23, 2024
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The world's best golfers make playing look so effortless, it's hard to imagine what's going on inside their minds. But modern neuroscience allows us to do exactly that. My team's new study shows how different parts of an ...
Jul 22, 2024
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Ever hear the old adage that time flies when you're having fun? A new study by a team of UNLV researchers suggests that there's a lot of truth to the trope.
Jul 19, 2024
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A team of epilepsy specialists at UC San Francisco has developed a method to predict 24-hour seizure risk. The discovery, which may be scalable to large numbers of patients, could help to improve the quality of life for the ...
Jul 18, 2024
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For the past 100 years, health care practitioners have valued electroencephalograms, or EEGs, for their clinical use—that is, their ability to visualize brain activity and to enable the diagnosis of seizures in patients ...
Jul 17, 2024
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Sleep and wake: They're totally distinct states of being that define the boundaries of our daily lives. For years, scientists have measured the difference between these instinctual brain processes by observing brain waves, ...
Jul 16, 2024
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Amyloid PET scans provide in-vivo evidence of Alzheimer's disease (AD) pathology. However, due to their high cost and limited insurance coverage, they are not widely used in clinical settings outside of the VA Healthcare ...
Jul 16, 2024
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A scientific breakthrough by researchers from Tel Aviv University and Tel Aviv Sourasky Medical Center (Ichilov Hospital) has demonstrated the potential for speech by a silent person using the power of thought only. In an ...
Jul 16, 2024
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As parents, teachers and pet owners can attest, rewards play a huge role in shaping behaviors in humans and animals. Rewards—whether as edible treats, gifts, words of appreciation or praise, fame or monetary benefits—act ...
Jul 15, 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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