Archive

Archive for the ‘The Brain’ Category

C3Vision and Neuromatters

December 6, 2010 Leave a comment

http://www.technologyreview.com/computing/26788/?p1=A1&a=f

 

Tapping into the processing power of the human brain could help computers with some tasks…Most brain-computer interfaces are designed to help disabled people communicate or move around. A new project is using this type of interface to help computers perform tasks they can’t manage on their own. In experiments, researchers used the interface to sort through satellite images for surface-to-air missiles faster than any machine or human analyst could manage alone…computers struggle to classify images according to this kind of abstract concept, but humans can do it almost instantly. Electrical signals within the brain fire before a person even realizes he’s recognized an image as odd or unusual…Sajda’s device, called C3Vision (cortically coupled computer vision), uses an electroencephalogram (EEG) cap to monitor brain activity as the person wearing it is shown about 10 images per second. Machine-learning algorithms trained to detect the neurological signals that signify interest in an image are used to analyze this brain activity. By monitoring these signals, the system rapidly ranks the images in terms of how interesting they appear to the viewer. The search is then refined by retrieving other images that are similar to those with the highest rank. “It’s a search tool that allows you to find images that are very similar to those that have grabbed your attention,“… conscious brain is unable to register a “hit.” But the neurological visual pathways work much faster, says Sajda. The brain produces distinct electrical signals that can be detected and decoded by the 64 EEG electrodes within the cap. “It’s on the edge of the subconscious,“… “Reading our brain signals and being able to distinguish ‘interesting’ from ‘not interesting’ prior to us having a conscious perception of seeing the item tells us that there is a substantial amount of processing that our brain does prior to the conscious awareness of the perception.”… “controlling machines directly from brain activity is a subject of intense research interest, but it is very difficult to obtain precise control, particularly without invasive methods.”… calls the approach “information triage” because it uses limited information from the brain to help refine an image search…Sajda and colleagues at Columbia have founded a spinoff company called Neuromatters to commercialize the technology with $4.6 million in funding from the Defense Advanced Research Projects Agency. Along with military applications, Sajda says possible applications might include advanced gaming interfaces and neuro-marketing. “It could be used for getting demographic feedback on how much an advert grabs people’s attention,”…

 

Self-transcendence

February 19, 2010 Leave a comment

http://www.foxnews.com/printer_friendly_story/0,3566,585590,00.html

identified areas of the brain that, when damaged, lead to greater spirituality. The findings hint at the roots of spiritual and religious attitudes… study, published in the Feb. 11 issue of the journal Neuron, involves a personality trait called self-transcendence, which is a somewhat vague

measure of spiritual feeling, thinking, and behaviors. Self-transcendence “reflects a decreased sense of self and an ability to identify one’s self as an integral part of the universe as a whole,”… Before and after surgery, the scientists surveyed patients who had brain tumors removed. The surveys generate self-transcendence scores… Selective damage to the left and right posterior parietal regions of the brain induced a specific increase in self-transcendence, or ST… Previous neuroimaging studies had linked activity within a large network in the brain that connects the frontal, parietal, and temporal cortexes with spiritual experiences, “but information on the causative link between such a network and spirituality is lacking,”… One study, reported in 2008, suggested that the brain’s right parietal lobe defines “Me,” and people with less active Me-definers are more likely to lead spiritual lives

Categories: The Brain

Reading your mind to tag images

January 21, 2010 Leave a comment

http://singularityhub.com/2010/01/10/reading-your-mind-to-tag-images-and-work-with-computers/

Article from Singularity hub about Microsoft effort to use brain activation patterns to help make image tagging quicker and easier.

Flattery will get you somewhere

January 21, 2010 Leave a comment

http://www.scientificamerican.com/article.cfm?id=flattery-will-get-you-far&sc=WR_20100112

Article about how flattery can effect your thoughts even when you are aware of the insincerity.

Interesting to think about from the two systems perspective.  Qualia system is aware the flattery is superficial but it still has an effect of stirring the soup and influencing future actions.

Categories: The Brain

Identifying thoughts through brain imaging

January 21, 2010 Leave a comment

http://www.sciencedaily.com/releases/2010/01/100112201347.htm

Story from Science Daily about recent work in analyzing brain activation patterns to begin to determine how the brain ‘codes’ nouns.  We would say that they group them according to their affordances.

Categories: The Brain