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Archive for the ‘neuroscience’ category: Page 317

Mar 23, 2023

Telomere shortening—a sign of cellular aging—linked to signs of Alzheimer’s in brain scans

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

Changes in the brain caused by Alzheimer’s disease are associated with shortening of the telomeres—the protective caps on the ends of chromosomes that shorten as cells age—according to a new study led by Anya Topiwala of Oxford Population Health, part of the University of Oxford, UK, published March 22 in the open-access journal PLOS ONE.

Telomeres on chromosomes protect DNA from degrading, but every time a cell divides, the telomeres lose some of their length. Short telomeres are a sign of stress and cellular aging, and are also associated with a higher risk of neurological and psychiatric disorders. Currently, little is known about the links between and changes that occur in the brains of people with neurological conditions. Understanding those relationships could offer insights into the biological mechanisms that cause neurodegenerative disorders.

In the new study, researchers compared telomere length in to results from brain MRIs and from more than 31,000 participants in the UK Biobank, a large-scale biomedical database and research resource containing anonymized genetic, lifestyle and from half a million UK participants.

Mar 22, 2023

Growing Neurons to Heal Brain Damage

Posted by in categories: chemistry, neuroscience

Watch as primordial neural cells dance across, grow into, and even move 3D scaffolds engineered to heal brain injury from stroke and other trauma. Decorating the scaffold with various nutrients and biochemical signals allow researchers to control what types of brain tissues they become.

Mar 22, 2023

Experts Warn: Brain-Computer Interfaces Will Usher In the Singularity

Posted by in categories: computing, neuroscience, singularity

A pair of philosophers sounded the alarm on the dystopian applications they see being ushered in by brain-computer interface (BCI) technology.

Mar 22, 2023

New ‘biohybrid’ implant will restore function in paralyzed limbs

Posted by in categories: biotech/medical, neuroscience

“This interface could revolutionize the way we interact with technology.”

Researchers from the University of Cambridge have created a new type of neural implant that could restore limb function in paralyzed limbs.

There have been former attempts at using neural implants to restore limb function, but these mostly failed. This is because scar tissue can envelop the electrodes over time, disrupting the connection between the device and the nerve.

Continue reading “New ‘biohybrid’ implant will restore function in paralyzed limbs” »

Mar 22, 2023

What if a brain was given technology?

Posted by in categories: computing, neuroscience

What if you could control a device, not with your hand, but with your mind? Physician and entrepreneur Tom Oxley talks about the implantable brain-computer interface that can change the way we think.

Mar 22, 2023

NDERF Home Page

Posted by in category: neuroscience

Near Death Experience Research Foundation the largest collection of Near Death Experiences (NDE) in over 23 Languages. With thousands of full-text near death experiences posted. Share your near death experience, research, spiritually transforming events, consciousness studies, extensive information and research.

Mar 22, 2023

Place cells: How your brain creates maps of abstract spaces

Posted by in categories: mapping, neuroscience, virtual reality

In this video, we will explore the positional system of the brain — hippocampal place cells. We will see how it relates to contextual memory and mapping of more abstract features.

OUTLINE:
00:00 Introduction.
00:53 Hippocampus.
1:27 Discovery of place cells.
2:56 3D navigation.
3:51 Role of place cells.
4:11 Virtual reality experiment.
7:47 Remapping.
11:17 Mapping of non-spatial dimension.
13:36 Conclusion.

Continue reading “Place cells: How your brain creates maps of abstract spaces” »

Mar 21, 2023

Immune signals that contribute to addiction vulnerability identified in the brain

Posted by in categories: biotech/medical, neuroscience

For individuals suffering from drug addiction, certain cues—whether it’s specific people, places or things—can trigger powerful cravings for repeated use.

A new University of Michigan study has identified signals, traditionally associated with inflammation, contributing to people’s vulnerability to . With repeated drug use with the same exposure to cues, some individuals develop an inability to control their drug use, even in the face of negative consequences.

The study is published in the journal eNeuro.

Mar 21, 2023

Wearable microscopes show HD images of pain processed

Posted by in categories: neuroscience, wearables

The study authors claim their microscope can provide colored real-time images of hard-to-reach parts of the spinal cord that couldn’t be accessed previously.

Pain is a powerful feeling but have you ever wondered how pain works on a cellular level? Well, a team of scientists at the San Diego-based Salk Insitute has actually figured out a way to see the internal neural mechanism associated with pain.

In their recently published study, they propose wearable microscopes using which they were able to check how nerve cells in the spinal cord of mice process pain signals.

Continue reading “Wearable microscopes show HD images of pain processed” »

Mar 21, 2023

Scientists unlock effect of psychedelic drug DMT on the human brain

Posted by in categories: biotech/medical, neuroscience

The powerful psychedelic can give you a near-death experience. Here is how it affects your brain on the inside.

Dimethyltryptamine, or DMT, is a powerful psychedelic whose effect on the human brain lasts for only some minutes, but in that short span of time, the user experiences some high-level mental changes.

The researchers examined the brain activity of the participants before, during, and after the DMT test. Here is what they found.

Continue reading “Scientists unlock effect of psychedelic drug DMT on the human brain” »

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