Difference between revisions of "Brain-Computer Interface"

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===Definition===
 
===Definition===
"A brain–computer interface (BCI), sometimes called a direct neural interface or a brain–machine interface, is a direct communication pathway between a brain and an external device. BCIs are often aimed at assisting, augmenting or repairing human cognitive or sensory-motor functions" [http://en.wikipedia.org/wiki/Brain–computer_interface].
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Brain-Computer Interfaces, or BCI's describe systems of interaction between computers and neurological systems. The aim of a BCI varies by application. Traditionally, BCI's are used to augment or repair cognitive or motor functions in humans that have lost the ability to control parts of their bodies. In this case, BCIs act as restorative technologies. As BCIs become cheaper, more accurate and easier to use outside of medical facilities, their use will increasingly be used as part of augmentative technologies and entertainment in the form of video games, conferencing and communication, remote control and wireless data entry.
  
===Types of Brain Computer Interfaces===
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There are two main types of BCIs, non-invasive, which allow for interfacing without surgery, and invasive, which require some surgical procedure in order to function. Two of the most interesting types of non-invasive BCIs are subvocal recognition, or SVR, and electroencephalograms, or EEG. 
====Subvocal Recognition (SVR)====
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"The Ambient Corporation is marketing a device called the Audeo that helps people speak.<ref>http://www.theaudeo.com/].
 
"The Ambient Corporation is marketing a device called the Audeo that helps people speak.<ref>http://www.theaudeo.com/].
On February 26, 2008 the Ambient Corporation demonstrated what it called the world's first voiceless phone call" [http://www.theaudeo.com/display_news.php?id=29</ref>
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On February 26, 2008 the Ambient Corporation demonstrated what it called the world's first voiceless phone call" [http://www.theaudeo.com/display_news.php?id=29</ref> (more information is needed here)
  
====Intra-ocular Lenses ====
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On the other hand, an EEG device is a non-invasive BCI that works by detecting neuro-electrical transmission in the brain. This neuro-electric brain activity can be converted into various outputs such as the movement of virtual objects, data entry, and the use of a computer without the use of a cursor or keyboard.  
"The implantation of modern IOLs requires minimally invasive surgery. A silicone folding lens can be inserted through a tiny incision or injected into the eye. The technology has close parallels with the contact lens industry and soft hydrophilic materials such as acrylic have been adapted for IOL use. Today there are in excess of 1500 designs and it is estimated that over 200 million people have benefited from an intra-ocular lens".<ref>http://www.college-optometrists.org/index.aspx/pcms/site.college.What_We_Do.museyeum.online_exhibitions.artificialeyes.implants/</ref>
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==References==
 
==References==

Revision as of 18:53, 30 July 2011

Definition

Brain-Computer Interfaces, or BCI's describe systems of interaction between computers and neurological systems. The aim of a BCI varies by application. Traditionally, BCI's are used to augment or repair cognitive or motor functions in humans that have lost the ability to control parts of their bodies. In this case, BCIs act as restorative technologies. As BCIs become cheaper, more accurate and easier to use outside of medical facilities, their use will increasingly be used as part of augmentative technologies and entertainment in the form of video games, conferencing and communication, remote control and wireless data entry.

There are two main types of BCIs, non-invasive, which allow for interfacing without surgery, and invasive, which require some surgical procedure in order to function. Two of the most interesting types of non-invasive BCIs are subvocal recognition, or SVR, and electroencephalograms, or EEG.

"The Ambient Corporation is marketing a device called the Audeo that helps people speak.[1] (more information is needed here)

On the other hand, an EEG device is a non-invasive BCI that works by detecting neuro-electrical transmission in the brain. This neuro-electric brain activity can be converted into various outputs such as the movement of virtual objects, data entry, and the use of a computer without the use of a cursor or keyboard.

References

  1. http://www.theaudeo.com/]. On February 26, 2008 the Ambient Corporation demonstrated what it called the world's first voiceless phone call" [http://www.theaudeo.com/display_news.php?id=29