A cognitive network model tested in a longitudinal study shows that belief network dissonance predicts belief change.
Category: neuroscience – Page 606
How Scientists Revived Organs in Pigs an Hour After They Died
Yes, it does. Although OrganEx helps revitalize pigs’ organs, it’s far from a deceased animal being brought back to life. Rather, their organs were better protected from low oxygen levels, which occur during heart attacks or strokes.
“One could imagine that the OrganEx system (or components thereof) might be used to treat such people in an emergency,” said Porte.
The technology could also help preserve donor organs, but there’s a long way to go. To Dr. Brendan Parent, director of transplant ethics and policy research at NYU Grossman School of Medicine, OrganEx may force a rethink for the field. For example, is it possible that someone could have working peripheral organs but never regain consciousness? As medical technology develops, death becomes a process, not a moment.
#Lsd Promotes #Memory #Neuroplasticity And Possibl #Neurogenesis
New video published on our YouTube channel:
New #research published in #experimental #neurology shows evidence that #lsd promotes #memory #neuroplasticity and possibly #neurogenesis.
Abstract linked in the description of the video.
#science.
#brain.
#neuroscience
Brain — Computer Interface. How this new technology will change the word
Discussion panel with:
- Swati Chavda, a science fiction writer and former brain surgeon.
- Ron S. Friedman, a science fiction writer and an Information Technologies Specialist.
August 13th 2022, When Words Collide festival.
#booktube #authortube #writingtube #braincomputerinterface #neuralink.
Relevant links:
Swati Chavda website: https://www.swatichavda.com/
Ron S. Friedman website: https://ronsfriedman.wordpress.com/
Neuralink’s brain-computer interface demo shows a monkey playing Pong
Neuralink, a company co-founded by Elon Musk, has been working on an implantable brain-machine interface since 2016. While it previously demonstrated its progress by showing a Macaque monkey controlling the cursor.
It’s unclear what kind of deal Musk has offered — whether it’s a collaboration or a financial investment —since none of the players responded or confirmed the report with the news organization.
Elon Musk’s last update on Neuralink — his company that is working on technology that will connect the human brain directly to a computer — featured a pig with one of its chips implanted in its brain. Now Neuralink is demonstrating its progress by showing a Macaque with one of the Link chips playing Pong. At first using “Pager” is shown using a joystick, and then eventually, according to the narration, using only its mind via the wireless connection.
Today we are pleased to reveal the Link’s capability to enable a macaque monkey, named Pager, to move a cursor on a computer screen with neural activity using a 1,024 electrode fully-implanted neural recording and data transmission device, termed the N1 Link. We have implanted the Link in the hand and arm areas of the motor cortex, a part of the brain that is involved in planning and executing movements. We placed Links bilaterally: one in the left motor cortex (which controls movements of the right side of the body) and another in the right motor cortex (which controls the left side of the body).
In an accompanying blog post, Neuralink says it’s building on decades of research that developed systems connecting “a few hundred electrodes” that needed a physical connector through the skin, compared to its N1 Link with 1,024 electrodes. According to Neuralink, “Our mission is to build a safe and effective clinical BMI system that is wireless and fully implantable that users can operate by themselves and take anywhere they go; to scale up the number of electrodes for better robustness and higher information throughput; and to automate the implant surgery to make it as rapid and safe as possible.”
Hui Li, PhD, Discovers Gene Responsible for Deadliest Brain Tumor Also Causes Childhood Cancer
Hui Li, PhD, a Department of Pathology researcher, along with his team discovered that a gene responsible for the deadliest type of brain tumor is also found to be responsible for two forms of childhood cancer. The new discovery may open the door to the first targeted treatments for two types of rhabdomyosarcoma, a cancer of the soft tissue that primarily strikes young children. Research also suggests the gene may play an important role in other cancers that form in muscle, fat, nerves and other connective tissues in both children and adults. Hui Li, PhD, and team published their findings in the scientific journal PNAS.
Boosting Neuron Formation Restores Memory in Mice With Alzheimer’s Disease
Summary: Increasing neurogenesis by deleting the Bax gene in mouse models of Alzheimer’s improved the animals’ performance in tests measuring spatial recognition and contextual memory.
Source: Rockefeller University.
Researchers at the University of Illinois Chicago have discovered that increasing the production of new neurons in mice with Alzheimer’s disease (AD) rescues the animals’ memory defects.
New Method Enables Long-Lasting Imaging of Rapid Brain Activity in Individual Cells Deep in the Cortex
Summary: Researchers have developed a new sensor that allows scientists to image the brain without missing signals for an extended period of time and deeper in the brain than current technology allows.
Source: Baylor College of Medicine.
As you are reading these words, certain regions of your brain are displaying a flurry of millisecond-fast electrical activity. Visualizing and measuring this electrical activity is crucial to understand how the brain enables us to see, move, behave or read these words.
New Research Shows How Dopamine Plays a Key Role in Consciousness
The Brain Chemical Involved in Consciousness
So how do we help these people? The brain is more than just a congregation of different areas. Brain cells also rely on a number of chemicals to communicate with other cells, enabling a number of brain functions. Before our study, there was already some evidence that dopamine, well known for its role in reward, also plays a role in disorders of consciousness.
For example, one study showed that dopamine release in the brain is impaired in minimally conscious patients. Moreover, a number of small-scale studies have shown that patients’ consciousness can improve by giving them drugs that act through dopamine.