Subliminal Perception: Just How Fast Is The Brain? - Neuroskeptic. Subliminal perception has long been a hot topic.
The idea that something (generally an image) could appear and disappear before us so quickly that it escapes conscious perception, and yet affect us subconsciously, is a fascinating (and scary) one. Psychologists and neuroscientists are fairly skeptical of any grand or sinister claims for the power of subliminal advertising or propaganda, but on the other hand, many of them use the technique as a research tool. So what’s the absolute speed limit of the brain? What’s the minimum time that a stimulus needs to appear in order to trigger a measurable brain response? Induced hallucination turns doctors into pizza chefs - health - 24 April 2014.
A 22-year-old man has been instantaneously transported to his family's pizzeria and his local railway station – by having his brain zapped.
These fleeting visual hallucinations have helped researchers pinpoint places where the brain stores visual location information. Pierre Mégevand at the Feinstein Institute for Medical Research in Manhasset, New York, and his colleagues wanted to discover just where in the brain we store and retrieve information about locations and places. They sought the help of a 22-year-old man being treated for epilepsy, because the treatment involved implanting electrodes into his brain that would record his neural activity.
Mégevand and his colleagues scanned the volunteer's brain using functional MRI while he looked at pictures of different objects and scenes. They then recorded activity from the implanted electrodes as he looked at a similar set of pictures. Discovery of quantum vibrations in 'microtubules' inside brain neurons supports controversial theory of consciousness. A review and update of a controversial 20-year-old theory of consciousness published in Physics of Life Reviews claims that consciousness derives from deeper level, finer scale activities inside brain neurons.
The recent discovery of quantum vibrations in "microtubules" inside brain neurons corroborates this theory, according to review authors Stuart Hameroff and Sir Roger Penrose. They suggest that EEG rhythms (brain waves) also derive from deeper level microtubule vibrations, and that from a practical standpoint, treating brain microtubule vibrations could benefit a host of mental, neurological, and cognitive conditions. How the Brain Creates Personality: A New Theory. Are you a mover, a perceiver, a stimulator, or an adapter?
Modes of thinking can be understood in terms of how the top and bottom—rather than right and left—parts of the brain interact. It is possible to examine any object—including a brain—at different levels. Take the example of a building. If we want to know whether the house will have enough space for a family of five, we want to focus on the architectural level; if we want to know how easily it could catch fire, we want to focus on the materials level; and if we want to engineer a product for a brick manufacturer, we focus on molecular structure. Similarly, if we want to know how the brain gives rise to thoughts, feelings, and behaviors, we want to focus on the bigger picture of how its structure allows it to store and process information—the architecture, as it were.
Scientists Show That Paranormal Activity Is All In Our Heads. Brown Lady of Raynham Hall, a claimed ghost photograph by Captain Hubert C.
Provand. First published in Country Life magazine, 1936. Researchers Make Huge Step Forward In Understanding How The Brain Processes Emotions. Emotion can be evoked by different things for different people, including visual stimulus and different taste sensations.
How can feelings be tied into sensory perception? A new study led by Cornell University’s Adam Anderson has found that emotions are encoded by the brain in a very standardized way. The results of the study were published in Nature Neuroscience. 2014/05/27 Journey of Discovery Starts toward Understanding and Treating Networks of the Brain. May 27, 2014 SUBNETS program includes two complementary research pathways that emphasize neural plasticity and single-neuron recording Work on DARPA’s Systems-Based Neurotechnology for Emerging Therapies (SUBNETS) program is set to begin with teams led by UC San Francisco (UCSF), and Massachusetts General Hospital (MGH).
The SUBNETS program seeks to reduce the severity of neuropsychological illness in service members and veterans by developing closed-loop therapies that incorporate recording and analysis of brain activity with near-real-time neural stimulation. The program, which will use next-generation devices inspired by current Deep Brain Stimulation (DBS) technology, was launched in support of President Obama’s brain initiative. UCSF and MGH will oversee teams of physicians, engineers, and neuroscientists who are working together to develop advanced brain interfaces, computational models of neural activity, and clinical therapies for treating networks of the brain.
Brain Injury Releases Astonishing Mathematical Powers. When two thugs bashed Jason Padgett outside a bar they weren't trying to release skills he never knew he had, less still conduct one of the most groundbreaking neuroscience experiments of the century.
But as it turned out, that's what they did. Hopefully the events will never be repeated, but they opened up new worlds for Padgett and lines of inquiry for neuroscientists. Pre-bashing, Padgett not only had no particular mathematical skill and no interest in the subject. “I cheated on everything and I never cracked a book” is how the self-confessed former "jock" describes his approach to math. After recovering from concussion resulting from being knocked to the ground and repeatedly kicked in the head, Padgett saw the world in an entirely different way.
Controlling brain waves to improve vision. Have you ever accidentally missed a red light or a stop sign?
Or have you heard someone mention a visible event that you passed by but totally missed seeing? "When we have different things competing for our attention, we can only be aware of so much of what we see," said Kyle Mathewson, Beckman Institute Postdoctoral Fellow at the University of Illinois. "For example, when you're driving, you might really be concentrating on obeying traffic signals. " Controlling brain waves to improve vision. Boosting depression-causing mechanisms in brain increases resilience, surprisingly. A new study points to a conceptually novel therapeutic strategy for treating depression.
Instead of dampening neuron firing found with stress-induced depression, researchers demonstrated for the first time that further activating these neurons opens a new avenue to mimic and promote natural resilience. The findings were so surprising that the research team thinks it may lead to novel targets for naturally acting antidepressants. Results from the study are published online April 18 in the journal Science. Researchers from the Icahn School of Medicine at Mount Sinai point out that in mice resilient to social defeat stress (a source of constant stress brought about by losing a dispute or from a hostile interaction), their cation channel currents, which pass positive ions in dopamine neurons, are paradoxically elevated to a much greater extent than those of depressed mice and control mice.
Sand Pile Model of the Mind Grows in Popularity. From Quanta Magazine (find original story here). In 1999, the Danish physicist Per Bak proclaimed to a group of neuroscientists that it had taken him only 10 minutes to determine where the field had gone wrong. Perhaps the brain was less complicated than they thought, he said. Perhaps, he said, the brain worked on the same fundamental principles as a simple sand pile, in which avalanches of various sizes help keep the entire system stable overall — a process he dubbed “self-organized criticality.” Human brains 'hard-wired' to link what we see with what we do. Your brain's ability to instantly link what you see with what you do is down to a dedicated information 'highway', suggests new UCL-led research.
For the first time, researchers from UCL (University College London) and Cambridge University have found evidence of a specialized mechanism for spatial self-awareness that combines visual cues with body motion. Standard visual processing is prone to distractions, as it requires us to pay attention to objects of interest and filter out others. The new study has shown that our brains have separate 'hard-wired' systems to visually track our own bodies, even if we are not paying attention to them. In fact, the newly-discovered network triggers reactions even before the conscious brain has time to process them.
Computer Program Allows the Blind to 'See' With Sound. A man blind since birth is taking up a surprising new hobby: photography. His newfound passion is thanks to a system that turns images into sequences of sound. The technology not only gives “sight” to the blind, but also challenges the way neurologists think the brain is organized. In 1992, Dutch engineer Peter Meijer created vOICe, an algorithm that converts simple grayscale images into musical soundscapes. (The capitalized middle letters sound out “Oh, I see!”). The system scans images from left to right, converting shapes in the image into sound as it sweeps, with higher positions in the image corresponding to higher sound frequencies. Severed Corpus Callosum.
Brain process takes paper shape. A paper-based device that mimics the electrochemical signalling in the human brain has been created by a group of researchers from China. The thin-film transistor (TFT) has been designed to replicate the junction between two neurons, known as a biological synapse, and could become a key component in the development of artificial neural networks, which could be utilised in a range of fields from robotics to computer processing. The TFT, which has been presented today in the journal Nanotechnology, is the latest device to be fabricated on paper, making the electronics more flexible, cheaper to produce and environmentally friendly.
The artificial synaptic TFT consisted of indium zinc oxide (IZO), as both a channel and a gate electrode, separated by a 550-nanometre-thick film of nanogranular silicon dioxide electrolyte, which was fabricated using a process known as chemical vapour deposition. Researchers discover how brain regions work together, or alone. Stanford researchers may have solved a riddle about the inner workings of the brain, which consists of billions of neurons, organized into many different regions, with each region primarily responsible for different tasks.
The various regions of the brain often work independently, relying on the neurons inside that region to do their work. At other times, however, two regions must cooperate to accomplish the task at hand. The riddle is this: what mechanism allows two brain regions to communicate when they need to cooperate yet avoid interfering with one another when they must work alone? New Neuroscience Journal to Launch. A New Method to Measure Consciousness Proposed. Brain Neuron Degeneration via Mercury. Part 1 - Phantoms In The Brain (Episode 1) Neuroscience 5e: Chapter 1 Summary. Grégoire Courtine: The paralyzed rat that walked. See-through brains. Synchronized virtual reality heartbeat triggers out-of-body experiences. Human Cells Make Mice Smarter. Support cells found in human brain make mice smarter. First mind-reading implant gives rats telepathic power - life - 28 February 2013.
Split brain with one half atheist and one half theist. When Proof Is Not Enough: Eben Alexander's Proof of Heaven and the Problem of Objectivity in Science. Scientists debunk the IQ myth: Notion of measuring one's intelligence quotient by singular, standardized test is highly misleading. Scientists make monkeys smarter using brain implants. Could you be next? Dragonflies have human-like 'selective attention' Spaun, the most realistic artificial human brain yet. Neuroscience of Music - How Music Enhances Learning - Neuroplasticity. Neural interaction in periods of silence. From Cooling System to Thinking Machine. Scientists Afflict Computers with Schizophrenia to Better Understand the Human Brain. Brain drain: Hackers could dip their phishing poles into your mind.
Does Self-Awareness Require a Complex Brain? Brain might not stand in the way of free will - life - 06 August 2012. Brain imaging can predict how intelligent you are: 'Global brain connectivity' explains 10 percent of variance in individual intelligence. The Brain Set Free. Daniel Wolpert: The real reason for brains. Your Color Red Really Could Be My Blue. Neuroscience: The mind reader.
Mind control: the advent of neuroscience in marketing. Multiple thought channels may help brain avoid traffic jams. Rebecca Saxe: How we read each other's minds. Researchers show that memories reside in specific brain cells. The split brain: A tale of two halves. Head Transplant: The Truly Disturbing Truly Real Story. The cockroach beatbox. Mapping out a new era in brain research. Study: Sleeplessness Causes Our Mental Circuits to Overheat. New brain connections form in clusters during learning. Solve for X: Mary Lou Jepsen on imaging the mind's eye. Gene therapy boosts brain repair for demyelinating diseases. Drug quickly reverses Alzheimer's symptoms in mice.
Visual-cortex simulator sees animals as humans do - tech - 03 April 2007. 'Matrix'-style effortless learning? Vision scientists demonstrate innovative learning method. Engineers build a nanoscale device for brain-inspired computing. Simon Lewis: Don't take consciousness for granted. Buddha's Brain: Neuroplasticity and Meditation. Amping Up Brain Function: Transcranial Stimulation Shows Promise in Speeding Up Learning. Allan Jones: A map of the brain. Jim Fallon: Exploring the mind of a killer. Paul Zak: Trust, morality.
Daniel Wolpert: The real reason for brains. RSA Animate - The Divided Brain. Neuroimaging fails to demonstrate ESP is real (1/15/2008) Why We Sleep. Steven Pinker on the myth of violence. Jeff Hawkins on how brain science will change computing. Brain imaging reveals the movies in our minds.