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Archive for the ‘neuroscience’ category: Page 226

Mar 16, 2023

Exposure to negative socio-emotional events induces sustained alteration of resting-state brain networks in older adults Aging

Posted by in categories: life extension, neuroscience

Baez-Lugo et al. show that increased functional brain connectivity between default mode network and amygdala in resting state after high emotional events is associated to higher anxiety, rumination and negative thoughts in older adults.

Mar 15, 2023

TikTok’s New Hyper-Realistic Effect Sparks Beauty Debate

Posted by in category: neuroscience

Two new effects on TikTok can give users sculpted cheekbones, plumped lips, or a younger look with the push of a button. But this hyper-realistic image-altering tech also spurs backlash. WSJ reporter Sara Ashley O’Brien joins host Zoe Thomas to discuss how these filters work and why some experts say they could damage users’ mental health. Photo: Storyblocks.

Mar 15, 2023

Fnbeh-14–626769.Pdf

Posted by in categories: health, neuroscience

Contribution of exercise to brain resilience.


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Mar 15, 2023

Your brain CAN’T Multitask — Here’s why

Posted by in category: neuroscience

This video explores what attention really is, what role it plays in learning and why people can’t multitask — the issue of attention residue.

OUTLINE:
0:00 — Sneak peek.
0:20 — Introduction.
0:57 — Why we need attention.
1:46 — Thalamus as attentional filter.
3:06 — Higher attentional systems.
3:40 — Role of attention in learning.
4:42 — Attention residue.
6:00 — Conclusions and references.

Continue reading “Your brain CAN’T Multitask — Here’s why” »

Mar 15, 2023

MS: Mediterranean diet may reduce cognitive impairment

Posted by in categories: biotech/medical, neuroscience

Following a Mediterranean diet may lower the risk for memory and thinking problems in people with multiple sclerosis (MS), a new study suggests.

Mar 15, 2023

Depressive Symptoms And Memory Loss in Older Adults Linked to Telomere Shortening

Posted by in categories: life extension, neuroscience

There’s a tiny, slow-burning ‘fuse’ attached to the ends of all our chromosomes, and as we naturally age, each of our cells loses more and more of that life-giving line.

Researchers in South Korea have now shown this fuse, known as the telomere, is unusually short in the cells of elderly people who are relatively healthy but have noticed early signs of depressive symptoms and cognitive decline, such as memory loss.

The randomized controlled trial presents more evidence for the telomere hypothesis of aging, which posits that all cells hit a point where they can no longer divide and replicate.

Mar 15, 2023

Imagination makes us human—this unique ability to envision what doesn’t exist has a long evolutionary history

Posted by in categories: evolution, neuroscience

You can easily picture yourself riding a bicycle across the sky even though that’s not something that can actually happen. You can envision yourself doing something you’ve never done before—like water skiing—and maybe even imagine a better way to do it than anyone else.

Imagination involves creating a mental image of something that is not present for your senses to detect, or even something that isn’t out there in reality somewhere. Imagination is one of the key abilities that make us human. But where did it come from?

I’m a neuroscientist who studies how children acquire . I’m especially interested in the neurological mechanisms of imagination. Once we identify what brain structures and connections are necessary to mentally construct new objects and scenes, scientists like me can look back over the course of evolution to see when these emerged—and potentially gave birth to the first kinds of imagination.

Mar 15, 2023

Study finds mushrooms magnify memory

Posted by in categories: biotech/medical, food, neuroscience

Researchers from The University of Queensland have discovered the active compound from an edible mushroom that boosts nerve growth and enhances memory.

Professor Frederic Meunier from the Queensland Brain Institute said the team had identified new active compounds from the mushroom, Hericium erinaceus.

“Extracts from these so-called ‘lion’s mane’ mushrooms have been used in in Asian countries for centuries, but we wanted to scientifically determine their on ,” Professor Meunier said.

Mar 15, 2023

Brain Cells Inspire New Computer Components

Posted by in categories: computing, neuroscience

Summary: Researchers have developed a more powerful and energy-efficient memristor, based on the structure of the human brain, that combines data storage and processing. The new technology, made from nanocrystals of halogenated perovskite, is not yet ready for use as it is difficult to integrate with existing computer chips, but it has the potential for parallel processing of large amounts of data.

Source: Politecnico di Milano.

Inspired by the brain’s energy efficiency, copying its structure to create more powerful computers, a team of researchers from Politecnico di Milano, Empa and ETH Zurich has developed a memristor that is more powerful and easier to produce than its predecessors: the results have been published in Science Advances.

Mar 15, 2023

A 53-year-old longevity researcher says his ‘biological age’ is a decade younger thanks to 4 daily habits — but the science behind them is mixed

Posted by in categories: biotech/medical, life extension, neuroscience, science

“That’s got molecules in it that will prevent cancer, among other things” like anti-inflammatory properties, he said. Some older research has shown, for example, that green tea consumption might be linked to a lower risk of stomach cancer.

Sinclair also said he takes supplements (like those sold on the Tally Health website) that contain resveratrol, which his team’s research has shown can extend the lifespan of organisms like yeast and worms.

While the compound, famously found in red wine, is known to have anti-inflammatory, anti-cancer, heart health, and brain health benefits, the research is mixed on if or how well such benefits can be achieved in humans through a pill.