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Why visual stimulation may work against Alzheimer’s

May 07, 2019
… amyloid plaques in mice neurodegeneration oscillations gamma aging … model mouse, and an Alzheimer's mouse treated with gamma-frequency light flicker. Beneficial brain waves Tsai’s … 40 hertz (cycles per second) induces brain waves known as gamma oscillations in the visual cortex. These brain waves …

Statistical model defines ketamine anesthesia’s effects on the brain

September 03, 2021
… at MGH showed alternating patterns of high-frequency gamma rhythms and very low-frequency delta rhythms in … distinct bands of high power (warmer colors) at high "gamma" frequencies and very low "delta" frequencies. To … characterized the previously observed alternations between gamma and delta rhythms, but a few other more subtle states …

40Hz rhythms fight Alzheimer’s at the cellular and molecular level

… level Discoveries With evidence that the power of 40Hz “gamma” frequency brain waves, or rhythms, are decreased in … Tsai’s lab became the first to show that increasing gamma promotes improved neural network connectivity, widens … or glia. Above: A depiction of how sensory stimulation of gamma rhythms may help clear amyloid from the brain. Flashing …

New trial to test brain wave stimulation as Alzheimer’s preventative

August 25, 2020
… can reduce disease pathology before onset of symptoms gamma neurodegeneration 40Hz With a new $1.8 million grant … safe, non-invasive approach of sensory stimulation of 40Hz gamma brain rhythms can have a preventative benefit for … the light and sound stimulation technique, called Gamma ENtrainment Using Sensory Stimuli ( GENUS ), improved …

Brain waves and cognition

… see a triangle”) are transmitted via higher frequency “gamma” rhythms while “top down” signals (e.g. “we care about … waves from deep layers of the cortex typically govern when gamma waves can flow in more superficial cortical layers. His … reasoning, the peak frequencies in each band (beta vs. gamma) increase, suggesting that these frequency differences …

GENUS

… try a completely different approach: After observing that gamma frequency (40Hz) brain wave power and synchrony is … potential treatment for neurodegeneration: GENUS , for Gamma ENtrainment Using Sensory stimuli. A 2019 study in …

Distinct brain rhythms, regions help us reason about categories

January 25, 2018
… reason about categories January 25, 2018 Research Findings Gamma rhythms sort similar-looking objects; beta kicks in … resemblance, an increase in the power of high-frequency gamma rhythms in the ventral lateral PFC did the trick. When … call very often, but not with the paradigm that we used.” Gamma in the ventral PFC always peaked in power when the …
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