49 posts tagged with brain by homunculus.
Displaying 1 through 49 of 49.
Inside the Strange New World of DIY Brain Stimulation. "Inspired by scientific studies, ordinary people are buying and building devices to send electrical current into their brains. Some say it has improved their memory and focus. Others have found relief from depression and chronic pain. But are they getting ahead of the science?" [Via]
Twilight in the Box. "The suicide statistics, the squalor and the recidivism haven’t ended solitary confinement. Maybe the brain studies will." [Via]
When Brain Damage Unlocks The Genius Within. [Single page view] "Brain damage has unleashed extraordinary talents in a small group of otherwise ordinary individuals. Will science find a way for everyone to tap their inner virtuoso?" [Via]
Body suit may soon enable the paralyzed to walk. "In a busy lab at Duke University, Dr. Miguel Nicolelis is merging brain science with engineering in a bid to create something fantastical: a full-body prosthetic device that would allow those immobilized by injury to walk again. On Wednesday, Nicolelis and an international group of collaborators declared that they had cleared a key hurdle on the path toward that goal, demonstrating they could bypass the body's complex network of nerve endings and supply the sensation of touch directly to the brains of monkeys."
Ray Kurzweil: Reverse-Engineering of Human Brain Likely by 2030. PZ Myers: Ray Kurzweil does not understand the brain.
In a Michelangelo Fresco, Visions of a Brain Stem. "It has been hiding in plain sight for the past 500 years, and now two Johns Hopkins professors believe they have found it: one of Michelangelo’s rare anatomical drawings in a panel high on the ceiling of the Sistine Chapel. Michelangelo was a conscientious student of human anatomy and enthusiastically dissected corpses throughout his life, but few of his anatomical drawings survive. This one, a depiction of the human brain and brain stem, appears to be drawn on the neck of God, but not all art historians can see it there."
Neurosecurity: security and privacy for neural devices. "An increasing number of neural implantable devices will become available in the near future due to advances in neural engineering. This discipline holds the potential to improve many patients' lives dramatically by offering improved—and in some cases entirely new—forms of rehabilitation for conditions ranging from missing limbs to degenerative cognitive diseases. The use of standard engineering practices, medical trials, and neuroethical evaluations during the design process can create systems that are safe and that follow ethical guidelines; unfortunately, none of these disciplines currently ensure that neural devices are robust against adversarial entities trying to exploit these devices to alter, block, or eavesdrop on neural signals. The authors define 'neurosecurity'—a version of computer science security principles and methods applied to neural engineering—and discuss why neurosecurity should be a critical consideration in the design of future neural devices." [Via Mind Hacks]
David Kessler Knew That Some Foods Are Hard to Resist; Now He Knows Why. Former FDA commissioner David Kessler goes dumpster-diving to investigate the neurological impact of eating junk food. [Via]
Rewiring the Brain: Inside the New Science of Neuroengineering. Dial H for Happiness: How Neuroengineering May Change Your Brain.
Ecstasy's long-term effects revealed. "Enough time has finally elapsed to start asking if ecstasy damages health in the long term. According to the biggest review ever undertaken, it causes slight memory difficulties and mild depression, but these rarely translate into problems in the real world. While smaller studies show that some individuals have bigger problems, including weakened immunity and larger memory deficits, so far, for most people, ecstasy seems to be nowhere near as harmful over time as you may have been led to believe." [Via]
How Google Is Making Us Smarter: Humans are "natural-born cyborgs," and the Internet is our giant "extended mind."
My Genome, My Self: Steven Pinker considers what we can expect from personal genomics. Searching for Intelligence in Our Genes: Carl Zimmer looks at the hunt to learn about the role of genes in intelligence.
If I Were You: Perceptual Illusion of Body Swapping. Expanding on previous experiments, researchers discover how to induce a "body-swap" illusion, whereby subjects perceive the body of another as if it were their own.
Brain's 'Hate Circuit' Identified. "People who view pictures of someone they hate display activity in distinct areas of the brain that, together, may be thought of as a 'hate circuit', according to new research by scientists at UCL (University College London)."
First Person Plural. "An evolving approach to the science of pleasure suggests that each of us contains multiple selves—all with different desires, and all fighting for control. If this is right, the pursuit of happiness becomes even trickier. Can one self bind another self if the two want different things? Are you always better off when a Good Self wins? And should outsiders, such as employers and policy makers, get into the fray?" [Via]
The Unspeakable Odyssey of the Motionless Boy. "How much of our humanity are we prepared to cede to machines? This is a dilemma of the future, but it's not much of a concern for Erik Ramsey. Erik can't move. He can't blink his eyes. And he hasn't said a word since 1999. But now, thanks to an electrode that was surgically implanted in his brain and linked to a computer, his nine-year silence is about to end." [Via]
A New State of Mind. "New research is linking dopamine to complex social phenomena and changing neuroscience in the process."
Mapping the Structural Core of Human Cerebral Cortex. A new study of the connections in the brain has identified the brain's central hub.
You know the feeling that something is on the tip of your tongue? It offers deep insights into the nature of the mind. [Via The Frontal Cortex]
"Attention regulation and monitoring in meditation" (PDF). A recent article in Trends in Cognitive Sciences on the neuroscience of meditation, focusing on how meditation alters and sharpens the brain's attention systems. The research is being done at the Waisman Laboratory for Brain Imaging and Behavior (previously), who have also recently published research on the "Regulation of the neural circuitry of emotion by compassion meditation" (PDF), which describes how meditation can cultivate compassion by physically affecting brain regions that play a role in empathy. They shared this research with the Dalai Lama at the recent Seeds of Compassion forum.
The Government Is Trying to Wrap Its Mind Around Yours. Why the Next Civil Rights Battle Will Be Over the Mind.
Out of the Blue: "Can a thinking, remembering, decision-making, biologically accurate brain be built from a supercomputer?"
Mapping Memory. "Turn the human brain upside down and all around to see how memories are saved (or lost)." National Geographic has a great interactive 3D map of the brain as part of an excellent feature on memory. [more inside]
Searching for God in the Brain. "Researchers are unearthing the roots of religious feeling in the neural commotion that accompanies the spiritual epiphanies of nuns, Buddhists and other people of faith." [Via MindHacks, which points out a few niggling omissions in the article.]
The Philosophy and Neuroscience Movement (PDF). A paper by Andrew Brook and Pete Mandik on the relationship between neuroscience and philosophy. [Via MindHacks.] [more inside]
How big is your crockus? In cutting edge neuroscience news, a new part of the brain has recently been identifed by the enigmatic Dr. Crockus. Described as "the detailed section of the brain, a part of the frontal lope," the crockus is apparently four times larger in females than in males, which is why girls see the details of experiences while boys see the whole but not the details. [more inside]
The Abyss. Oliver Sacks writes about Clive Wearing (recently discussed here). [Via MindHacks.] [more inside]
BrainPaint. Beautiful, real-time images created through neurofeedback by using the electrical activity of the brain to seed fractal patterns.
Virtual Out-of-Body Experience. Using two procedures to deliberately scramble a person's visual and tactile senses, neuroscientists are able to induce "out-of-body" experiences in people. The effect is the same as the 'rubber hand illusion', but extends the effect to the whole body instead of just one limb (you can try the hand illusion for yourself).
When a Brain Forgets Where Memory Is. Interesting article on dissociative fugue, the poorly understood memory disorder where people seem to forget who they are. [Via MindHacks.]
Sea Squirt Regrows Entire Body from One Blood Vessel. Most famous as the creature that settles down and eats its own brain (though that is not exactly correct), it appears the humble sea squirt has spectacular regenerative abilities as well, thanks to regeneration niches packed with stem cells. All glory to the sea squirt!
The Woman Who Thinks Like A Cow. A documentary about Temple Grandin (previously discussed here and here.) [Via MindHacks.]
Video of a hemispherectomy, a neurosurgical procedure to remove a hemisphere of the brain, on a 6-year-old girl with epilepsy. Previous post about the procedure. [Via Mind Hacks.]
Meditation found to increase brain size (maybe) according to research led by Harvard neuroscientist Sara Lazar. Meanwhile, Atheist Manifesto author Sam Harris recently went on a meditation retreat and seemed to find it pleasant enough.
BrainMeta "is a community site that was established for the purpose of accelerating the development of neuroscience through web-based initiatives, which include the development, implementation and support of a wide range of neuroinformatics tools, services, and databases. BrainMeta also functions as an internet hub for fostering communication between individuals involved with the neurosciences." [Via Mind Hacks.]
Brain implants 'read' monkey minds. (No, not that monkey mind.) A group of CalTech neuroscientists have been able to predict the actions of monkeys by observing neural activity in the parietal and premotor cortices related to planning and motivation (PDF.) Other research previously allowed monkeys to control a robotic arm with their minds; this observed the higher-level goal and value signals, and could lead to more natural thought-activated prosthetic devices for people with paralysis. [Via MonkeyFilter.]
Making the Mind. "The general outlines of how genes build the brain are finally becoming clear, and we are also starting to see how, in forming the brain, genes make room for the environment’s essential role. While vast amounts of work remain to be done, it is becoming equally clear that understanding the coordination of nature and nurture will require letting go of some long-held beliefs."