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Archive for the ‘neuroscience’ category: Page 413

Mar 10, 2021

Your brain warps your memories so you can remember them better

Posted by in category: neuroscience

Amy Corzine.

Utter waste of time. Trees do it already. We simply need more trees. For our physical and mental health.

1 Reply.

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Mar 9, 2021

The Mechanical Basis of Memory – the MeshCODE Theory

Posted by in categories: biological, neuroscience, supercomputing

One of the major unsolved mysteries of biological science concerns the question of where and in what form information is stored in the brain. I propose that memory is stored in the brain in a mechanically encoded binary format written into the conformations of proteins found in the cell-extracellular matrix (ECM) adhesions that organise each and every synapse. The MeshCODE framework outlined here represents a unifying theory of data storage in animals, providing read-write storage of both dynamic and persistent information in a binary format. Mechanosensitive proteins that contain force-dependent switches can store information persistently, which can be written or updated using small changes in mechanical force. These mechanosensitive proteins, such as talin, scaffold each synapse, creating a meshwork of switches that together form a code, the so-called MeshCODE. Large signalling complexes assemble on these scaffolds as a function of the switch patterns and these complexes would both stabilise the patterns and coordinate synaptic regulators to dynamically tune synaptic activity. Synaptic transmission and action potential spike trains would operate the cytoskeletal machinery to write and update the synaptic MeshCODEs, thereby propagating this coding throughout the organism. Based on established biophysical principles, such a mechanical basis for memory would provide a physical location for data storage in the brain, with the binary patterns, encoded in the information-storing mechanosensitive molecules in the synaptic scaffolds, and the complexes that form on them, representing the physical location of engrams. Furthermore, the conversion and storage of sensory and temporal inputs into a binary format would constitute an addressable read-write memory system, supporting the view of the mind as an organic supercomputer.

I would like to propose here a unifying theory of rewritable data storage in animals. This theory is based around the realisation that mechanosensitive proteins, which contain force-dependent binary switches, can store information persistently in a binary format, with the information stored in each molecule able to be written and/or updated via small changes in mechanical force. The protein talin contains 13 of these switches (Yao et al., 2016; Goult et al., 2018; Wang et al., 2019), and, as I argue here, it is my assertion that talin is the memory molecule of animals. These mechanosensitive proteins scaffold each and every synapse (Kilinc, 2018; Lilja and Ivaska, 2018; Dourlen et al., 2019) and have been considered mainly structural. However, these synaptic scaffolds also represent a meshwork of binary switches that I propose form a code, the so-called MeshCODE.

Mar 8, 2021

Behavior needs neural variability

Posted by in category: neuroscience

Human and non-human animal behavior is highly malleable and adapts successfully to internal and external demands. Such behavioral success stands in striking contrast to the apparent instability in neural activity (i.e., variability) from which it arises. Here, we summon the considerable evidence across scales, species, and imaging modalities that neural variability represents a key, undervalued dimension for understanding brain-behavior relationships at inter-and intra-individual levels. We believe that only by incorporating a specific focus on variability will the neural foundation of behavior be comprehensively understood.

Mar 7, 2021

Operator Syndrome: Managing High Allostatic Load

Posted by in categories: food, military, neuroscience

Have you ever heard of “Allostatic Load” and “Operator Syndrome?”

I stumbled across the work of Christopher Frueh while doing some research on physiological, psychological and hormonal stress mitigation. Frueh, along with his team of researchers, psychologists and former SOF operators, has been exploring the human mind, defining PTSD and outlining Special Operator’s Syndrome. This is one of the only programs in the country specifically designed to help those suffering from this condition.

“Allostatic load” is the cost on your body of chronic stress and physical demands of a career with the military special forces, according to Science Direct. The military recipe for “burning the candle at both ends” includes high intensity physical fitness training, the high stress of operations and being away from home, the trauma of witnessing death, war or injury. Add in the inability to sleep or eat well, and the operator limits the two main recovery responses, which leads to chronic stress. This adds up to Allostatic Overload.

Mar 7, 2021

A California Experiment Gave People $500 A Month For Two Years. Here’s What Happened

Posted by in categories: employment, health, neuroscience

A study of a guaranteed income program in Stockton, California, found that after receiving an extra $500 in cash each month for a year, recipients had better job prospects and improved mental health.

As part of the Stockton Economic Empowerment Demonstration (SEED) pilot program, 125 people in the California city received $500 per month for 24 months starting in February 2019. The program, initiated by former Mayor Michael Tubbs, chose recipients in neighborhoods at or below the city’s median household income of $46033. The money, in prepaid debit cards, was unconditional, meaning people could spend it as they chose.

A study released Wednesday based on the first year of the project, from February 2019 to February 2020, found that beneficiaries got full-time jobs at over twice the rate of non-recipients, were less anxious and depressed over time, and reported improvements in emotional health, well-being and fatigue.

Mar 7, 2021

Scientists grow human-Neanderthal hybrid ‘minibrains’ in petri dishes

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

SB Acharyya.

This is correct https://www.frontiersin.org/…/10…/fnhum.2010.00224/


Sesame seed-size brains created from a mix of human and Neanderthal genes lived briefly in petri dishes in a University of California, San Diego laboratory, offering tantalizing clues as to how the organs have evolved over millennia.

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Mar 7, 2021

New brain imaging research sheds light on the neural underpinnings of emotional intelligence

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

Recently published neuroimaging research provides evidence that the directional connectivity between several brain regions plays an important role in emotional processing abilities.

Although interest in emotional intelligence has been steadily growing since the 1990s, the underlying neural mechanisms behind it have yet to be clearly established. The new study, which appears in NeuroImage, is part of a process to begin to fill in this gap in scientific knowledge.

“Emotional intelligence is one of the least studied topics, especially in conjunction with cutting-edge computational neuroimaging techniques,” explained lead researcher Sahil Bajaj, the director of the Multimodal Clinical Neuroimaging Laboratory at Boys Town National Research Hospital.

Mar 7, 2021

In battle with U.S., China to focus on 7 ‘frontier’ technologies from chips to brain-computer fusion

Posted by in categories: computing, Elon Musk, neuroscience

China laid out seven “frontier” technologies in its 14th Five Year Plan. These are areas that China will focus research on and include semiconductors and brain-computer fusion.

Yuichiro chino | moment | getty images.

However, such work is already underway in the U.S. at Elon Musk’s company Neuralink. Musk is working on implantable brain-chip interfaces to connect humans and computers.

Mar 6, 2021

A New Way to Halt Excessive Inflammation

Posted by in categories: biotech/medical, neuroscience

Summary: The protein Arginase-2 works through mitochondria to reduce inflammation. The findings could lead to new treatments for diseases associated with neuroinflammation, including multiple sclerosis and rheumatoid arthritis.

Source: RCSI

RCSI researchers have discovered a new way to ‘put the brakes’ on excessive inflammation by regulating a type of white blood cell that is critical for our immune system.

Mar 5, 2021

Seven scientific sectors to get extra funds as China pushes for global standing

Posted by in categories: biotech/medical, genetics, government, health, neuroscience, space travel

Integrated circuits, brain sciences, genetics and biotechnology, clinical medicine and health care, and deep Earth, sea, space and polar exploration were named as the other five sectors that will be given priority in terms of funding and resources, according to a draft of the government’s 14th five-year plan for 2021–25, and its vision through 2035.


‘Basic research is the wellspring of scientific and technological innovation, so we’ll boost spending in this area by a considerable sum,’ Premier Li Keqiang says.