Laden...
ScienceDaily: Mind & Brain News |
| Toxoplasma parasites manipulate brain cells to survive Posted: 21 Dec 2021 06:24 PM PST Researchers have discovered that Toxoplasma parasites lay dormant and undetected inside neurons (brain cells) and muscle cells by releasing proteins that switch off the cells' ability to alert the immune system. |
| Brain mechanisms involved in learning also drive social conformity Posted: 21 Dec 2021 07:42 AM PST Some of the same brain systems known to play a role in learning from trial and error also are engaged when people conform to social norms, scientists report in a new study. The findings are important, the researchers said, because changing one's behavior to align with one's peers can contribute to community-building or -- depending on the goals and values of the group -- societal breakdown. |
| Face detection in untrained deep neural networks? Posted: 21 Dec 2021 07:27 AM PST Researchers have found that higher visual cognitive functions can arise spontaneously in untrained neural networks. A research team has shown that visual selectivity of facial images can arise even in completely untrained deep neural networks. This new finding has provided revelatory insights into mechanisms underlying the development of cognitive functions in both biological and artificial neural networks, also making a significant impact on our understanding of the origin of early brain functions before sensory experiences. |
| Star cells in the brain render memory flexible Posted: 21 Dec 2021 07:27 AM PST Star cells in the brain render memory flexible. Hippocampal astrocytes co-release D-serine and glutamate for the regulation of synaptic plasticity and cognitive flexibility. |
| Scientists identify gut-derived metabolites that play a role in neurodegeneration Posted: 20 Dec 2021 04:06 PM PST A New York-based, multi-institutional research team has found high levels of three toxic metabolites produced by gut bacteria in the cerebrospinal fluid and plasma samples of multiple sclerosis (MS) patients. The important findings further scientists' understanding of how gut bacteria can impact the course of neurological diseases by producing compounds that are toxic to nerve cells. |
| Consciousness in humans, animals and artificial intelligence Posted: 20 Dec 2021 09:07 AM PST A new theory of consciousness provides experimental access to the study of this phenomenon. Not just in humans. |
| School uniforms don't improve child behavior, study finds Posted: 20 Dec 2021 09:07 AM PST Despite the belief of many parents and teachers, school uniforms don't seem to have any effect on young students' behavior or attendance overall, a new U.S. national study found. |
| Scientists create mind-blowing tool to 'see' millions of brain cell connections in mice Posted: 20 Dec 2021 09:06 AM PST To solve the mysteries of how learning and memory occur, scientists have created a system to track millions of connections among brain cells in mice -- all at the same time -- when the animals' whiskers are tweaked, an indicator for learning. |
| Can a dangerous microbe offer a new way to silence pain? Posted: 20 Dec 2021 09:06 AM PST A new study shows that a toxin from the microbe that causes anthrax can silence multiple types of pain in mice. Researchers found the toxin targets pain-sensing cells to alter signaling and block pain. Building on that finding, researchers engineered an anthrax protein vehicle to deliver different types of treatments into pain receptors and modulate nerve-cell function. The findings can inform the design of therapies that selectively target pain-sensing fibers without the widespread systemic effects of opioids and other pain killers. |
| Mind-controlled robots now one step closer Posted: 16 Dec 2021 12:02 PM PST Researchers teamed up to develop a machine-learning program that can be connected to a human brain and used to command a robot. The program adjusts the robot's movements based on electrical signals from the brain. The hope is that with this invention, tetraplegic patients will be able to carry out more day-to-day activities on their own. |
| Posted: 16 Dec 2021 12:01 PM PST A study has found an association between air pollution and higher levels of deposition of beta-amyloid protein in the brain and of neurofilament light (NfL) in cerebrospinal fluid. |
| Choline transporter in the brain is necessary for tuning out unneeded information Posted: 16 Dec 2021 11:50 AM PST In habituation, an organism gets so used to a ubiquitous sight, smell, sensation or sound that it virtually disappears. Researchers have identified a transporter protein in the brain that plays a vital role in habituation. |
| Parkinson's disease mutation misdirects iron in the brain Posted: 16 Dec 2021 11:50 AM PST A common gene mutation for Parkinson's disease drives mislocalization of iron in activated microglia, according to a new study. The results may help explain the accumulation of toxic iron in affected brain areas in the disease and provide a basis for the development of therapies designed to correct the iron trafficking defect. |
| You are subscribed to email updates from Mind & Brain News -- ScienceDaily. To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States | |
Laden...
Laden...
