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We know the brain as much as Galileo knew the universe Print E-mail
Human Brain
Written by Raúl Arrabales Moreno   
Tuesday, 31 October 2006
The knowledge we currently have about the human brain is comparable to the knowledge about the Universe we had in Galileo’s time, said the Novel Prize Torsten Wiesel during a meeting in Santiago de Compostela (Spain). Mr. Wiesel argues that plasticity is a key factor in human brain development as many regions of it need stimuli for their development. Wiesel received the Nobel Prize jointly with Hubel thanks to their work on brain visual processing. They demonstrated that the brain needs to configure itself after birth. i.e., even though no physical problem exists, without stimuli there is no brain development.
 
Within the framework of ConCiencia program, coordinated by the professor Jorge Mira, Mr. Wiesel talked about the challenges of human brain understanding. When he was asked about the percentage of human brain that we currently understand, he answered that our knowledge of human brain is more or less the same as the knowledge we had about the universe in Galileo’s time. Probably, 90% of the mechanisms in the brain are still unknown. Brain imaging techniques are the main advance in the knowledge of the brain. These techniques allow us to study not only isolated cells but brain processes in general, Wiesel said. 
 

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Last Updated ( Wednesday, 20 December 2006 )
 
Microsoft Robotics Studio October 2006 CTP Print E-mail
Robotics Studio News
Written by Raúl Arrabales Moreno   
Tuesday, 24 October 2006

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Microsoft Robotics Group has released the October 2006 Community Technical Preview (CTP) of the Microsoft Robotics Studio. This version can be downloaded from this link.

For those of you who don't know what Robotics Studio is, let me quote Microsoft: The Microsoft Robotics Studio is a Windows-based environment for academic, hobbyist and commercial developers to easily create robotics applications across a wide variety of hardware. Key features and benefits of the Microsoft Robotics Studio environment include: end-to-end Robotics Development Platform , lightweight services-oriented runtime, and a scalable and extensible platform.  

I downloaded the October 2006 CTP some days ago and I have been playing around with the improved simulation engine.  It goes smooth in a normal PC running Windows XP using a mid-range graphics card. Having a few (relatively simple) objects in the simulated world I see no need for the specific AGEIA hardware accelerator board. It is also true that I didn't manage to get it working properly with the more complex simulated worlds (maybe due to some missconfiguration).

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Last Updated ( Wednesday, 01 August 2007 )
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Microsoft Robotics Studio November 2006 CTP Print E-mail
Robotics Studio News
Written by Raúl Arrabales Moreno   
Tuesday, 24 October 2006

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Microsoft Robotics Group has released the November 2006 Community Technical Preview (CTP) of the Microsoft Robotics Studio. This version can be downloaded from this link.

As announced last November 7th Microsoft has released the November 2006 CTP version of MSRS

See below to learn what's new in MSRS November 2006 CTP.

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Last Updated ( Wednesday, 01 August 2007 )
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The Complete Work of Charles Darwin Online Print E-mail
Evolutionary Computing
Written by Raúl Arrabales   
Monday, 23 October 2006
Image In the context of evolutionary computing it is very interesting to know that from October 2006 the Universoty of Cambridge offers the complete work of Charles Darwin online at darwin-online.org.uk.
 
 The site contains more than 50,000 searchable text pages and 40,000 images of both publications and handwritten manuscripts. There is also the most comprehensive Darwin bibliography ever published and the largest manuscript catalogue ever assembled. More than 150 ancillary texts are also included, ranging from secondary reference works to contemporary reviews, obituaries, published descriptions of Darwin's Beagle specimens and important related works for understanding Darwin's context.
 
  There are other two websites referenced in Darwin-Online home providing complementary Darwin materials:

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Last Updated ( Wednesday, 20 December 2006 )
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Consciousness in Vegetative State? Print E-mail
Human Brain
Written by Raúl Arrabales Moreno   
Sunday, 10 September 2006

As reported last week in Science, a team of researchers in Cambridge have demonstrated that a patient in vegetative state preserved conscious awareness. Using a fMRI scanner the patient showed same activation patterns as healthy volunteers when she was asked to imagine playing tennis. Dr. Adrian Owen, the leader of this research, claim that the vegetative diagnosed brain was able to understand the meaning of sentences and respond consciously. For a detailed description of the research visit the Medical Research Council website. This specific research work is published in Science, 8th September 2006 under the title Detecting Awareness in the Vegetative State.

If these research conclusions are confirmed, it means that current techniques to assess the level of consciousness of humans are not fully valid. One might be unable to move or speak, however that does not neccesarily means that the subject is unable to experience some level of consciousness.

Taking this idea about consciousness level assesment to the field of machine consciousness, one could think about the best way to determine the level of awareness of a robot. Obviously, the first reference is always the Turing test. However, as demonstrated in humans, a purely external evaluation could not be valid in terms of assessing the real level of consciousness of an artificial entity. Anyway, from a strictly engineering point of view this question is irrelevant.

 

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Last Updated ( Saturday, 04 November 2006 )
 
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