Showing posts with label Mind. Show all posts
Showing posts with label Mind. Show all posts

Thursday, July 18, 2013

How We Focus and Concentrate

neurosciencestuff:

Pay attention: How we focus and concentrate
Scientists at Newcastle University have shed new light on how the brain tunes in to relevant information.
Publishing in Neuron, the team reveal the interplay of brain chemicals which help us pay attention in work funded by the Wellcome Trust and BBSRC.
By changing the way neurons respond to external stimuli we improve our perceptual abilities. While these changes can affect the strength of a neuronal response, they can also affect the fidelity of that response.
Lead author Alex Thiele, Professor of Visual Neuroscience explains: “When you communicate with others, you can make yourself better heard by speaking louder or by speaking more clearly. Neurons appear to do similar things when we’re paying attention. They send their message more intensely to their partners, which compares to speaking louder. But more importantly, they also increase the fidelity of their message, which compares to speaking more clearly.
“Our earlier work has shown that attention is able to affect the intensity of responses – in effect the loudness - by means of the brain chemical acetylcholine. Now we have shown that the fidelity of the response is altered by a different brain chemical system.”
In the paper, the team reveal that the quality of the response is altered by means of glutamate coupling to NMDA receptors (a molecular device that mediates communication between neurons). Carried out in a primate model, these studies for the first time isolate different attention mechanisms at the receptor level.
The research builds on the team’s previous studies and has potentially significant implications not only for our understanding of how our brains work but also give an insight into conditions such as schizophrenia, Alzheimer’s disease and attention deficit disorder, and may aid in the development of treatments for them.


Scientists at Newcastle University have shed new light on how the brain tunes in to relevant information.

Publishing in Neuron, the team reveal the interplay of brain chemicals which help us pay attention in work funded by the Wellcome Trust and BBSRC.

By changing the way neurons respond to external stimuli we improve our perceptual abilities. While these changes can affect the strength of a neuronal response, they can also affect the fidelity of that response.

Lead author Alex Thiele, Professor of Visual Neuroscience explains: “When you communicate with others, you can make yourself better heard by speaking louder or by speaking more clearly. Neurons appear to do similar things when we’re paying attention. They send their message more intensely to their partners, which compares to speaking louder. But more importantly, they also increase the fidelity of their message, which compares to speaking more clearly.

“Our earlier work has shown that attention is able to affect the intensity of responses – in effect the loudness - by means of the brain chemical acetylcholine. Now we have shown that the fidelity of the response is altered by a different brain chemical system.”

In the paper, the team reveal that the quality of the response is altered by means of glutamate coupling to NMDA receptors (a molecular device that mediates communication between neurons). Carried out in a primate model, these studies for the first time isolate different attention mechanisms at the receptor level.

The research builds on the team’s previous studies and has potentially significant implications not only for our understanding of how our brains work but also give an insight into conditions such as schizophrenia, Alzheimer’s disease and attention deficit disorder, and may aid in the development of treatments for them.

Monday, May 06, 2013

The Search For Consciousness



By The BBC

Where sits the Consciousness? What is Consciousness? 

Recently it was found out that both hemispheres can be missing yet the children (though severely impaired) are still Conscious! Laughing without a Brain: "Got a Towel?" 

Case studies suggest that some forms of consciousness may not require an intact cerebrum

Monday, February 25, 2013

The Scientific Power Of Thought



Written and created by Mitchell Moffit (twitter @mitchellmoffit) and Gregory Brown (twitter @whalewatchmeplz).

The power of the mind and it's ability to affect physical change may shock you! Find out how simply imagining can make it so. 

Get Your FREE Audio Book - http://bit.ly/10gMVnV

Further Reading:

1) The Brain That Changes Itself - Norman Doidge, M.D.

Music Experiment:

2) http://jn.physiology.org/content/74/3/1037.short
3) http://ti.me/WifVpK

Muscle Experiement:

4) http://jn.physiology.org/content/67/5/1114.short

Brain Plasticity:

5) http://bit.ly/S8CHlM

Saturday, February 23, 2013

Google To Create An Artificial Super-Mind


Famed AI researcher and incorrigable singularity forecaster Ray Kurzweil recently shed some more light on what his new job at Google will entail. It seems that he does, indeed, plan to build a prodigious artificial intelligence, which he hopes will understand the world to a much more sophisticated degree than anything built before–or at least that will act as if it does.
Kurzweil’s AI will be designed to analyze the vast quantities of information Google collects and to then serve as a super-intelligent personal assistant. He suggests it could eavesdrop on your every phone conversation and email exchange and then provide interesting and important information before you ever knew you wanted it. It sounds like a scary-smart version of Google Now (see “Google’s Answer to Siri Thinks Ahead”).
Kurzweil says this of his project at Google, in a video posted by The Singularity Hub:
“There’s no more important project than understanding Intelligence and recreating it. I do envision a fundamental approach based on everything we understand about how the human brain [works]. And there are some things we don’t yet understand so I plan to go off and explore some of my own ideas about how certain things work.”
Kurzweil makes it sound like the effort will be based on the theory of the put forward in his new book, How to Create a Mind. In this work, based largely on observations about current trends in AI research, and his own work on speech and character recognition, Kurzweil suggests a fairly simple mechanism by which information is captured and accessed hierarchically throughout the neo-cortex, and posits that this phenomenon can explain the miracle of human conscious experience.
Kurzweil’s claims are certainly bold, and some have criticized them as hopelessly naïve. Indeed, it’s easy to dismiss any predictions he makes because of the outlandish ones he’s made in the past. But Kurzweil is nothing if not a brilliant inventor, and he indicates that at Google he’ll be rolling his sleeves up and doing real engineering. It’ll be fascinating to see how far this remarkable project takes both the inventor and the company.
Via: "Technology Review"
Image by Anatole Branch
(AKA: Morpheus)

Sunday, August 26, 2012

The Architecture Of Memory


Most of us think of memory as a chamber of the mind, and assume that our capacity to remember is only as good as our brain. But according to some architectural theorists, our memories are products of our body’s experience of physical space. Or, to consolidate the theorem: Our memories are only as good as our buildings.
In the BBC television series “Sherlock,” the famous detective’s capacious memory is portrayed through the concept of the “mind palace“—what is thought to be a sort of physical location in the brain where a person stores memories like objects in a room. Describing this in the book A Study in Scarlet, Holmes says, “I consider that a man’s brain originally is like a little empty attic, and you have to stock it with such furniture as you choose…”
The mind palace—also known as the memory palace or method of loci—is a mnemonic device thought to have originated in ancient Rome, wherein items that need to be memorized are pinned to some kind of visual cue and strung together into a situated narrative, a journey through a space. The science writer and author Joshua Foer covered this technique in depth in his book Moonwalking with Einstein, in which he trained for and ultimately won the U.S. Memory Championship. To memorize long lists of words, a deck of cards, a poem, or a set of faces, mental athletes, as they’re called, fuse a familiar place—say, the house they grew up in—with a self-created fictional environment populated by the objects in their list. In an excerpt from his book published in the New York Times, Foer describes his own palace construction:
I was storing the images in the memory palace I knew better than any other, one based on the house in Washington in which I grew up. Inside the front door, the Incredible Hulk rode a stationary bike while a pair of oversize, loopy earrings weighed down his earlobes (three of clubs, seven of diamonds, jack of spades). Next to the mirror at the bottom of the stairs, Terry Bradshaw balanced on a wheelchair (seven of hearts, nine of diamonds, eight of hearts), and just behind him, a midget jockey in a sombrero parachuted from an airplane with an umbrella (seven of spades, eight of diamonds, four of clubs). I saw Jerry Seinfeld sprawled out bleeding on the hood of a Lamborghini in the hallway (five of hearts, ace of diamonds, jack of hearts), and at the foot of my parents’ bedroom door, I saw myself moonwalking with Einstein (four of spades, king of hearts, three of diamonds).
According to Foer, in order for this technique to work, the features of the memory palace must be hyperreal, exaggerating the edges of normalcy in order to stand out in the mind. Whether the palace is a modernist bungalow or a faux-Italianate McMansion or a mobile home doesn’t matter, so long as it is memorable, which is to say, so long as it is a place.
The philosopher Edward S. Casey defines a “place”—as distinct from a “site”—as a physical location where memories can be contained and preserved. An empty lot, for example, would be considered a site—a generic, boundless locale which “possesses no points of attachment onto which to hang our memories, much less retrieve them.” By contrast, a place is “full of protuberant features and forceful vectors—and distinct externally from other places…We observe this when an indifferent building lot, easily confused with other empty lots, is transformed into a memorable place by the erection of a distinctive house upon it.”
From an architect’s perspective, the transformation of a site (or you could call it a space) into a place is a two-way process. Erecting a structure enables the space to contain memories, and the installation of memories turns that structure into a place. In his essay in the book Spatial Recall: Memory in Architecture and Landscape, UC Berkeley architecture professor Donlyn Lyndon explains, ”‘Place,’ as I understand it, refers to spaces that can be remembered, that we can imagine, hold in the mind, and consider.”
Lyndon argues that “Good places are structured so that they attract and hold memories; they are sticky—or perhaps you would rather say magnetic.” He suggests that buildings which try too hard to control the experience of the user ultimately fail to become true places. “Seeking to make each place a singular, memorable work of art often makes the insistence of its vocabulary resistant to the attachment of memories—to the full engagement of the people who use and live with the building.”
This is perhaps why, when building a mind palace, we are told to enhance and distort the standard features of our design. As we add character and color, our own emotions and reactions become the plaster between the walls of our palace and the hooks on which we hang the ace of hearts or the Prince of Wales or the breakfast cereal. Just as we usually think of memory as the property of the head, we often place emotion in the heart and reaction in the gut, and suddenly through this process, the whole physical body becomes integrated into memorization.
In another essay in Spatial Recall, Finnish architecture professor Juhani Pallasmaa asserts, “Human memory is embodied, skeletal and muscular in its essence, not merely cerebral,” later punctuating his point with a quote from Casey, the philosopher: “[B]ody memory is…the natural center of any sensitive account of remembering.”
In other words, while the mind palace technique may seem charmingly counterintuitive to the average rememberer of grocery lists, it is probably the most innate method of recall we have, if we learn how to use it. Which is, of course, why Sherlock Holmes was able to mentally reconstruct crimes in order to solve mysteries, and why Joshua Foer had a relatively short road to becoming a national memory champion.