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Brain is an analogue device
ArgumentOpposé
1
#446
Even if neuron firings are all-or-none, the message pulses that carry neural information are analogue. They involve complex graded and nonlinear factors. So the brain seems to be an analogue device.
John von Neumann (1958) as articulated by Hubert Dreyfus (1972).
Note
: Von Neumann subjects the relationship between brain and computer to extensive analysis, and his classic lecutres on the subject are still relevant today.
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Artificial Intelligence »
Artificial Intelligence
Artificial IntelligenceâA collaboratively editable version of Robert Horns brilliant and pioneering debate map Can Computers Think?âexploring 50 years of philosophical argument about the possibility of computer thought.âF1CEB7
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Can computers think? [1] »
Can computers think? [1]
Can computers think? [1]âCan a computational system possess all important elements of human thinking or understanding? âFFB597
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Yes: physical symbol systems can think [3] »
Yes: physical symbol systems can think [3]
Yes: physical symbol systems can think [3]âThinking is a rule governed manipulation of symbolic representational structures. In humans, symbol systems are instantiated in the brain, but the same symbol systems can also be instantiated in a computer. â59C6EF
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The Biological Assumption »
The Biological Assumption
The Biological AssumptionâThe brain is the hardware (or wetware) on which the software of the mind is run. Thinking is a symbolic process that is implemented in the neurons of the brain and that can also be implemented in the circuits of a digital computer.â98CE71
▲
Neurons operate like logic gates »
Neurons operate like logic gates
Neurons operate like logic gatesâBrain neurons are similar to the logic gates of a digital computer. Their all-or-none firing potential gives them a discrete character and allows them to be combined into the AND gates, OR gates and other logic gates that underlie digital computing.â98CE71
■
Brain is an analogue device
Brain is an analogue deviceâEven if neuron firings are all-or-none, the message pulses that carry neural information are analogue. They involve complex graded and nonlinear factors. So the brain seems to be an analogue device.âEF597B
●
Analogue machines lack flexibility of digital machines »
Analogue machines lack flexibility of digital machines
Analogue machines lack flexibility of digital machinesâAnalogue devices cant make contingent if-then branchesâie analogue devices cant do one thing under one set of circumstances and a completely different thing under a discretely different set of circumstances.âEF597B
●
Analogue systems can't represent general concepts »
Analogue systems can't represent general concepts
Analogue systems can't represent general conceptsâAnalogue devices only capture particular sensory patterns. They cannot (by themselves) be used to recognize and process unversal concepts.âEF597B
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Entrée par:
David Price
NodeID:
#446
Node type:
OpposingArgument
Date d'entrée (GMT):
7/5/2006 10:25:00 AM
Date de la derniĂšre modification (Heure GMT):
10/23/2007 3:41:00 PM
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