Archive for the ‘neuroscience’ category: Page 172
Dec 26, 2023
New brain-like transistor mimics human intelligence
Posted by Dan Breeden in categories: computing, neuroscience
Transistor performs energy-efficient associative learning at room temperature.
An artistic interpretation of brain-like computing. Image by Xiaodong Yan/Northwestern University.
Dec 26, 2023
How can we construct a science of consciousness?
Posted by Dan Breeden in categories: neuroscience, science
This chapter gives an overview of the projects facing a science of consciousness. Such a science must integrate third-person data about behavior and brain processes with first-person data about conscious experience. Empirical projects for integrating these data include those of contrasting conscious and unconscious processes, investigating the contents of consciousness, finding neural correlates of consciousness, and eventually inferring underlying principles connecting consciousness with physical processes. These projects are discussed with reference to current experimental research on consciousness. Some obstacles that a science of consciousness faces are also discussed.
Dec 26, 2023
Inner Experience — Direct Access to Reality: A Complementarist Ontology and Dual Aspect Monism Support a Broader Epistemology
Posted by Dan Breeden in categories: ethics, mathematics, neuroscience
Ontology, the ideas we have about the nature of reality, and epistemology, our concepts about how to gain knowledge about the world, are interdependent. Currently, the dominant ontology in science is a materialist model, and associated with it an empiricist epistemology. Historically speaking, there was a more comprehensive notion at the cradle of modern science in the middle ages. Then “experience” meant both inner, or first person, and outer, or third person, experience. With the historical development, experience has come to mean only sense experience of outer reality. This has become associated with the ontology that matter is the most important substance in the universe, everything else-consciousness, mind, values, etc.,-being derived thereof or reducible to it. This ontology is insufficient to explain the phenomena we are living with-consciousness, as a precondition of this idea, or anomalous cognitions. These have a robust empirical grounding, although we do not understand them sufficiently. The phenomenology, though, demands some sort of non-local model of the world and one in which consciousness is not derivative of, but coprimary with matter. I propose such a complementarist dual aspect model of consciousness and brain, or mind and matter. This then also entails a different epistemology. For if consciousness is coprimary with matter, then we can also use a deeper exploration of consciousness as happens in contemplative practice to reach an understanding of the deep structure of the world, for instance in mathematical or theoretical intuition, and perhaps also in other areas such as in ethics. This would entail a kind of contemplative science that would also complement our current experiential mode that is exclusively directed to the outside aspect of our world. Such an epistemology might help us with various issues, such as good theoretical and other intuitions.
Keywords: complementarity; consciousness; contemplative science; dual aspect model; epistemology; introspection; materialism; ontology.
Copyright © 2020 Walach.
Dec 26, 2023
Biology and Neuroscience — 2023’s Biggest Breakthroughs
Posted by Dan Breeden in categories: biotech/medical, neuroscience
Quanta Magazine’s coverage of biology in 2023, including important research progress into the nature of consciousness, the origins of our microbiomes and the timekeeping mechanisms that govern our lives and development.\
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Read about more breakthroughs from 2023 at Quanta Magazine: https://www.quantamagazine.org/the-bi…\
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00:05 The Investigation of Consciousness\
Our minds are constantly taking in new external information while also creating their own internal imagery and narratives. How do we distinguish reality from fantasy? This year, researchers discovered that the brain has a “reality threshold” against which it constantly evaluates processed signals. \
- Original story with links to research papers can be found here: https://www.quantamagazine.org/is-it–…\
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04:30 Microbiomes Evolve With Us\
This year, scientists provided clear evidence that the organisms in our microbiome —the collection of bacteria and other cells that live in our guts and elsewhere on our body — spread between people, especially those with whom we spend the most time. This raises the intriguing possibility that some illnesses that aren’t usually considered communicable might be.\
– Original story with links to research papers can be found here: https://www.quantamagazine.org/global…\
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08:43 How Life Keeps Time\
The rate at which an embryo develops and the timing of when its tissues mature vary dramatically between species. What controls the ticking of this developmental clock that determines an animal’s final form? This year, a series of careful experiments suggest that mitochondria may very well serve dual roles as both the timekeeper and power source for complex cells.\
- Original story with links to research papers can be found here: https://www.quantamagazine.org/what-m…\
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Quanta Magazine is an editorially independent publication supported by the Simons Foundation: https://www.simonsfoundation.org/
Dec 25, 2023
The Brain-Implant Company Going for Neuralink’s Jugular
Posted by Cecile G. Tamura in categories: biotech/medical, neuroscience
Synchron’s electrodes are delivered via blood vessel.
Until now, only about 50 humans have ever had BCIs implanted in their brains.
Dec 25, 2023
Brainy Breakthrough: CHOOSE System Unlocks Autism Secrets
Posted by Saúl Morales Rodriguéz in categories: biotech/medical, genetics, neuroscience
The CHOOSE system, an innovative approach combining brain organoids and genetics, transforms autism research by allowing detailed analysis of mutations and their effects on brain development.
Does the human brain have an Achilles heel that ultimately leads to Autism? With a revolutionizing novel system that combines brain organoid technology and intricate genetics, researchers can now comprehensively test the effect of multiple mutations in parallel and at a single-cell level within human brain organoids.
This technology, developed by researchers from the Knoblich group at the Institute of Molecular Biotechnology (IMBA) of the Austrian Academy of Sciences and the Treutlein group at ETH Zurich, permits the identification of vulnerable cell types and gene regulatory networks that underlie autism spectrum disorders. This innovative method offers unparalleled insight into one of the most complex disorders that challenge the human brain with implications that bring autism clinical research much-needed hope.
Dec 25, 2023
Neuromorphic computing based on halide perovskites
Posted by Dan Breeden in categories: computing, neuroscience
This Review examines the development of neuromorphic hardware systems based on halide perovskites, considering how devices based on these materials can serve as synapses and neurons, and can be used in neuromorphic computing networks.
Dec 25, 2023
Neuralink-Linked Startup Working on Tech So You Can Keep Working While You Dream
Posted by Kelvin Dafiaghor in category: neuroscience
For those of you for whom the grind never stops, the tech startup Prophetic is offering an unusual device that supposedly lets you work while you sleep — because when else are you supposed to get your side hustle in?
Called “Halo,” it’s a thick headband that Prophetic says is able to induce lucid dreams, the kind of dreams in which you’re aware that you’re dreaming and thus potentially able to take control of.
They can make for memorable if not life-changing experiences for some. But rather than wasting your time and dream power exploring your subconscious mind, Prophetic wants you to take lucid dreams by the reins and try being productive with them for a change.
Dec 25, 2023
Study suggests that the neural correlates of mind-wandering can vary across different tasks
Posted by Cecile G. Tamura in category: neuroscience
The data collected by this research team confirms that mind-wandering is associated with an increase in alpha oscillations, which was also reported in previous works.
When humans are completing a specific task, their minds can shift from what they are doing to their own internal thoughts. This shift of attention from a task to internal events, known as off-task thinking or mind-wandering, is well-documented and has been studied extensively in the past.
A research question that remains unanswered is whether mind-wandering should be considered an adaptive/beneficial or maladaptive/undesirable process. Depending on the circumstances in which it occurs, in fact, this process could distract a person from an important task they are trying to complete or shift their attention onto something equally or more important for them.