Time on the Brain: How You Are Always Living In the Past, and Other Quirks of Perception. Flash-Lag Effect - D. M. Eagleman. This is a page of supplemental information for D.
M. Eagleman and T. J. Sejnowski, Motion Integration and Postdiction in Visual Awareness, Science, 287(5460), 2000, and for follow-up Technical Comments. The Cyborg in Us All. How Embarrassing: Researchers Pinpoint Self-Consciousness in the Brain. Feeling embarrassed?
You can probably thank your pregenual anterior cingulate cortex (pACC), a boomerang-shaped region of the brain nestled behind the eyes. Cognitive scientists at the University of California, San Francisco, and U.C. Neuroscience Challenges Old Ideas about Free Will. Do we have free will?
It is an age-old question which has attracted the attention of philosophers, theologians, lawyers and political theorists. Now it is attracting the attention of neuroscience, explains Michael S. Gazzaniga, director of the SAGE Center for the Study of the Mind at the University of California, Santa Barbara, and author of the new book, “Who’s In Charge: Free Will and the Science of the Brain.” He spoke with Mind Matters editor Gareth Cook. Cook: Why did you decide to tackle the question of free will? Gazzaniga: I think the issue is on every thinking person’s mind. The Evolution of Grief, Both Biological and Cultural, in the 21st Century. Three months ago, I received an email informing me that a high school friend, Pat, had died.
I read his obituary and my body stopped functioning. I froze on the spot, limbs tense but trembling. My mouth went dry, my vision blurred. As I waited for my train in the packed station, I could barely stand as my muscles turned to jelly and legs folded beneath my body. Why Walking through a Doorway Makes You Forget. The French poet Paul Valéry once said, “The purpose of psychology is to give us a completely different idea of the things we know best.”
In that spirit, consider a situation many of us will find we know too well: You're sitting at your desk in your office at home. Digging for something under a stack of papers, you find a dirty coffee mug that’s been there so long it’s eligible for carbon dating. Better wash it. Cache Cab: Taxi Drivers' Brains Grow to Navigate London's Streets. Manhattan's midtown streets are arranged in a user-friendly grid.
In Paris 20 administrative districts, or arrondissements, form a clockwise spiral around the Seine. But London? MIND Reviews: Harnessed: How Language and Music Mimicked Nature and Transformed Ape to Man. The Neuroscience of Barbie. In science fiction and fantasy tales, there is a long running fascination with the idea of dramatically diminishing or growing in stature.
In the 1989 classic, Honey, I Shrunk the Kids, Rick Moranis invents a device which accidentally shrinks both his own and the neighbor’s children down to a quarter-of-an-inch tall. Preceding this by more than 100 years, Lewis Carroll wrote about a little girl who, after tumbling down a rabbit hole, nibbles on some cake and then grows to massive proportions. Nearly 300 years ago, Jonathan Swift described the adventures of Gulliver while on the island of Lilliputan, on which he is a giant, and then on the island of Brobdingnag, where everyone else is a giant. These kinds of experiences, however, have been limited to the world of fictional stories. The world around us does not actually change in size. Or at least, they were mythical until recently.
Crab's Brain Encodes Complex Memories. The Chasmagnathus granulatus crab leads a simple life.
It spends its days burrowing for food and trying to avoid its nemesis, the seagull. But recent research has shown that despite its rudimentary brain, this crab has a highly sophisticated memory. For example, it can remember the location of a seagull attack and learn to avoid that area. In mammals, this kind of behavior requires multiple brain regions, but a study published in the June issue of the Journal of Neuroscience suggests that the C. granulatus crab can manage with just a few neurons. Neuroscientists at the University of Buenos Aires used cardboard cutouts of seagulls to test crabs’ memory skills. The American Fascination With Zombies. Ed note: As Halloween rapidly approaches in the US, AiP will be exploring superstitions, beliefs, and the things that go bump in the night.
This post originally appeared on AiP on May 17th, 2011, in response to Zombie Awareness Month—oh, it’s real all right. It’s been slightly modified for this posting. I think I must be prepared. Neurons Offer Clues to Suicide. A certain type of brain cell may be linked with suicide, according to a recent investigation.
People who take their own lives have more densely packed von Economo neurons, large spindle-shaped cells that have dramatically increased in density over the course of human evolution. Researchers in Germany analyzed the roots of suicide in the brain by focusing on a neural network linked with psychological pain, which includes regions such as the anterior cingulate cortex and the anterior insula, where von Economo neurons are concentrated. These cells bear receptors for neurotransmitters that help to regulate emotion, such as dopamine, serotonin and vasopressin. Brain Likely Encodes the World in 2 Dimensions.
When we drive somewhere new, we navigate by referring to a two-dimensional map that accounts for distances only on a horizontal plane. According to research published online in August in Nature Neuroscience, the mammalian brain seems to do the same, collapsing the world into a flat plane even as the animal skitters up trees and slips deep into burrows. “Our subjective sense that our map is three-dimensional is illusory,” says Kathryn Jeffery, a behavioral neuroscientist at University College London who led the research. Jeffery studies a collection of neurons in and around the rat hippocampus that build an internal representation of space. As the animal travels, these neurons, called grid cells and place cells, respond uniquely to distance, turning on and off in a way that measures how far the animal has moved in a particular direction.
Past research has focused on how these cartographic cells encode two-dimensional space. The Neuroscience of Beauty. The notion of “the aesthetic” is a concept from the philosophy of art of the 18th century according to which the perception of beauty occurs by means of a special process distinct from the appraisal of ordinary objects. Hence, our appreciation of a sublime painting is presumed to be cognitively distinct from our appreciation of, say, an apple. The field of “neuroaesthetics” has adopted this distinction between art and non-art objects by seeking to identify brain areas that specifically mediate the aesthetic appreciation of artworks.
However, studies from neuroscience and evolutionary biology challenge this separation of art from non-art. Brains Built to Cooperate: Scientific American Podcast. We are social animals. So you might assume our brains are built to excel when we cooperate with each other, as opposed to when we function in isolation. Now research with another animal supports that notion. Plain-tailed wrens in Ecuador are famous for duets between males and females. While their song is done cooperatively, with the male and female singing alternate syllables, it sounds surprisingly like one bird singing solo. Scientists who have recorded and analyzed hundreds of such songs decided to capture some of the birds to monitor the brain regions responsible for singing. Neural Networking: Your Brain's Internal Connections Operate Like a Country Club: Scientific American Gallery. Conciousness and healthy brain function appear to emerge not from neurons, but from the networks linking them together.
Scientists are only just beginning to map that complex network and understand how it works. Whereas previous studies have shown that some regions of the human brain have more connections than others, until now no one has known exactly how those "hubs" interact. A new study, published November 2 in The Journal of Neuroscience, used MRI scans to map brain activity in 21 people. Memory in the Brain [Interactive] Female orgasm captured in series of brain scans. Scientists have used brain scan images to create the world's first movie of the female brain as it approaches, experiences and recovers from an orgasm. Bedside detection of awareness in the vegetative state: a cohort study. Introduction. Guiding lights. In a scientific first that could shed light on how signals travel in the brain and the effects of learning on neural pathways, scientists at Harvard have created genetically altered neurons that light up as they fire.
Brain Exam Detects Awareness in 3 ‘Vegetative’ Patients. The Evolution of REM Dreaming. New studies reveal that more animals are dreaming than we thought. Anesthesia May Leave Patients Conscious—and Finally Show Consciousness in the Brain. Alzheimer’s Spreads Like a Virus From Neuron to Neuron, Studies Show. Why Did Consciousness Evolve, and How Can We Modify It? Amazing video shows us the actual movies that play inside our mind. Upon rereading the entire article it does appear that the second clip shown to the subjects was fully reconstructed by what was learned from the brain in the first mapping session. Scientists use brain imaging to reveal the movies in our mind. BERKELEY — Imagine tapping into the mind of a coma patient, or watching one’s own dream on YouTube. With a cutting-edge blend of brain imaging and computer simulation, scientists at the University of California, Berkeley, are bringing these futuristic scenarios within reach.
Scientists say they're getting closer to Matrix-style instant learning. Vision Scientists Demonstrate Innovative Learning Method. Press Release 11-257 Vision Scientists Demonstrate Innovative Learning Method. News - Video - Researchers explain Decoded Neurofeedback. Neuroimagen (III): Resonancia magnética, funcional y Conectoma.
Tras "Una mirada al interior del cerebro" y "Electrodos intracraneales y electroencefalograma", en esta tercera entrega de nuestra serie de posts dedicados a la neurociencia seguimos desentrañando los secretos de la neuroimange. Las imágenes obtenidas por resonancia magnética han supuesto un avance fundamental en el conocimiento del cerebro. Tanto si es una imagen estática proporcionada por la resonancia magnética MRI, como si analiza la actividad del cerebro usando resonancia funcional magnética fMRI o si lo que pretende es encontrar las vías neurales del cerebro o Conectoma usando la técnica diffusion tensor imaging DTI.
Bee swarms behave just like neurons in the human brain. What happens when your brain is split in two - and you survive? 10 Incredibly Strange Brain Disorders. Metaphors actually trigger the sensory parts of our brains. "Teleported" mice reveal secrets of memory. Cómo aprende nuestro cerebro a base de ritmo.
The Scientist Who Controlled People with Brain Implants. Jose Rodriguez Delgado: Implantes cerebrales - Vìdeo Dailymotion. How does your brain create short-term memories? Answer quickly: are there more fish on the left or right side of this image? Brain rhythms are key to learning. Why don't we normally hallucinate? How does our brain know what is a face and what’s not? Seeking the neurological roots of conflict. How scientists discovered the "fear center" of the brain. 10 Things You Probably Didn't Know About Dreams.
Take a psychedelic trip through 700 layers of the human brain. A form of blindness where you can see everything, but recognize nothing. This is what your brain on drugs really looks like. This is what your brain on drugs really looks like. Black and white TV generation have monochrome dreams. How exactly do neurons pass signals through your nervous system? Breakthrough: The first sound recordings based on reading people's minds. Why do people have phobias? Knowing a painting is forged changes how your brain sees it. ¿Por qué algunas melodías nos suenan mejores que otras? Sweet Music to your Nerves. El poderoso derrame de iluminación de Jill Bolte Taylor. Just How Free Is Free Will? Men Remember Repulsive Images, Women Pleasant Ones. Social Networking, Brain Matter & Animal Dominance.
Inside the Brain: A Journey Through Time. Why People Can Read Jumbled Words and Numbers In Place of Letters. What Falling in Love Does to the Brain. The Science of Sarcasm? Yeah, Right. Is a Memory Pill a Good Idea?