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.
A pair of philosophers sounded the alarm on the dystopian applications they see being ushered in by brain-computer interface (BCI) technology.
“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.
University of Cambridge.
The developed device works in sync between the brain and paralyzed limbs — it combines flexible electronics and human stem cells to “better integrate” with the nerve and drive limb function, according to a press release.
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.
Posted in neuroscience
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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.
_____________
REFERENCES:
1) Anderson, M.I., Jeffery, K.J., 2003. Heterogeneous Modulation of Place Cell Firing by Changes in Context. J. Neurosci. 23, 8827–8835. https://doi.org/10.1523/JNEUROSCI.23-26-08827.
2) Aronov, D., Nevers, R., Tank, D.W., 2017. Mapping of a non-spatial dimension by the hippocampal–entorhinal circuit. Nature 543719–722. https://doi.org/10.1038/nature21692
3) Bostock, E., Muller, R.U., Kubie, J.L., 1991. Experience-dependent modifications of hippocampal place cell firing. Hippocampus 1193-205. https://doi.org/10.1002/hipo.
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 brain signals, traditionally associated with inflammation, contributing to people’s vulnerability to addiction. 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.
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.
Salk Institute.
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.
Agsandrew/iStock.
For the first time, a team of researchers from the Imperial College of London has monitored these changes in detail. They administered a high dose of DMT to 20 healthy individuals who voluntarily participated in their study.
http://www.ted.com Philosopher Dan Dennett makes a compelling argument that not only don’t we understand our own consciousness, but that half the time our brains are actively fooling us.
TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world’s leading thinkers and doers are invited to give the talk of their lives in 18 minutes. TED stands for Technology, Entertainment, and Design, and TEDTalks cover these topics as well as science, business, politics and the arts. Watch the Top 10 TEDTalks on TED.com, at http://www.ted.com/index.php/talks/top10
