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mind uploading : ウィキペディア英語版
mind uploading

Whole brain emulation (WBE) or mind uploading (sometimes called "mind copying" or "mind transfer") is the hypothetical process of copying mental content (including long-term memory and "self") from a particular brain substrate and copying it to a computational device, such as a digital, analog, quantum-based or software-based artificial neural network. The computational device could then run a simulation model of the brain information processing, such that it responds in essentially the same way as the original brain (i.e., indistinguishable from the brain for all relevant purposes) and experiences having a conscious mind.〔http://www.sim.me.uk/neural/JournalArticles/Bamford2012IJMC.pdf〕〔(【引用サイトリンク】title=An Error Occurred Setting Your User Cookie )〕〔http://kajsotala.fi/Papers/CoalescingMinds.pdf〕
Mind uploading may potentially be accomplished by either of two methods: Copy-and-Transfer or Gradual Replacement of neurons. In the case of the former method, mind uploading would be achieved by scanning and mapping the salient features of a biological brain, and then by copying, transferring, and storing that information state into a computer system or another computational device. The simulated mind could be within a virtual reality or simulated world, supported by an anatomic 3D body simulation model. Alternatively, the simulated mind could reside in a computer that's inside (or connected to) a humanoid robot or a biological body.〔

Among some futurists and within the transhumanist movement, mind uploading is treated as an important proposed life extension technology. Some believe mind uploading is our current best option for preserving who we are as opposed to cryonics. Another aim of mind uploading is to provide a permanent backup to our "mind-file", and a means for functional copies of human minds to survive a global disaster or interstellar space travels. Whole brain emulation is discussed by some futurists as a "logical endpoint"〔 of the topical computational neuroscience and neuroinformatics fields, both about brain simulation for medical research purposes. It is discussed in artificial intelligence research publications as an approach to strong AI. Computer-based intelligence such as an upload could think much faster than a biological human even if it were no more intelligent. A large-scale society of uploads might, according to futurists, give rise to a technological singularity, meaning a sudden time constant decrease in the exponential development of technology. Mind uploading is a central conceptual feature of numerous science fiction novels and films.
Substantial mainstream research in related areas is being conducted in animal brain mapping and simulation, development of faster super computers, virtual reality, brain-computer interfaces, connectomics and information extraction from dynamically functioning brains. According to supporters, many of the tools and ideas needed to achieve mind uploading already exist or are currently under active development; however, they will admit that others are, as yet, very speculative, but still in the realm of engineering possibility. Neuroscientist Randal Koene has formed a nonprofit organization called Carbon Copies to promote mind uploading research.
==Overview==

The human brain contains about 86 billion nerve cells called neurons, each individually linked to other neurons by way of connectors called axons and dendrites. Signals at the junctures (synapses) of these connections are transmitted by the release and detection of chemicals known as neurotransmitters. The established neuroscientific consensus is that the human mind is largely an emergent property of the information processing of this neural network.
Importantly, neuroscientists have stated that important functions performed by the mind, such as learning, memory, and consciousness, are due to purely physical and electrochemical processes in the brain and are governed by applicable laws. For example, Christof Koch and Giulio Tononi wrote in IEEE Spectrum:
The concept of mind uploading is based on this mechanistic view of the mind, and denies the vitalist view of human life and consciousness.
Eminent computer scientists and neuroscientists have predicted that specially programmed computers will be capable of thought and even attain consciousness, including Koch and Tononi,〔 Douglas Hofstadter,〔(【引用サイトリンク】title=Tech Luminaries Address Singularity )Jeff Hawkins,〔 Marvin Minsky,〔Marvin Minsky, Conscious Machines, in 'Machinery of Consciousness', Proceedings, National Research Council of Canada, 75th Anniversary Symposium on Science in Society, June 1991.〕 Randal A. Koene,〔(【引用サイトリンク】title=MindUploading.org )〕 and Rodolfo Llinas.
Such a machine intelligence capability might provide a computational substrate necessary for uploading.
However, even though uploading is dependent upon such a general capability, it is conceptually distinct from general forms of AI in that it results from dynamic reanimation of information derived from a specific human mind so that the mind retains a sense of historical identity (other forms are possible but would compromise or eliminate the life-extension feature generally associated with uploading). The transferred and reanimated information would become a form of artificial intelligence, sometimes called an infomorph or ''"noömorph."''
Many theorists have presented models of the brain and have established a range of estimates of the amount of computing power needed for partial and complete simulations.〔 Using these models, some have estimated that uploading may become possible within decades if trends such as Moore's Law continue.〔Ray Kurzweil,(Live Forever–Uploading The Human Brain...Closer Than You Think ), Psychology Today, February 2000.〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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