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The Computer Metaphor of Mind. By Aaron Clarke. The Computer Metaphor of Mind. What is the computer metaphor of mind? How did this metaphor come about? Key players: George A. Miller – Language and the computer metaphor of mind McCulloch – Pitts – Neural Networks. Concluding remarks.

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The Computer Metaphor of Mind


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the computer metaphor of mind2
The Computer Metaphor of Mind
  • What is the computer metaphor of mind?
  • How did this metaphor come about?
    • Key players:
      • George A. Miller – Language and the computer metaphor of mind
      • McCulloch – Pitts – Neural Networks.
  • Concluding remarks
the computer metaphor of mind3
The Computer Metaphor of Mind

Q: What is the computer metaphor of mind?

A: The brain is a computer.

how did this metaphor come about
How Did This Metaphor Come About?
  • Key Players:
    • George A. Miller – Language and the computer metaphor of mind
    • McCulloch – Pitts – Neural Networks.
george a miller
George A. Miller
  • Started off as a behaviourist.
  • Interested in information theory.
  • Helped develop the idea that the similarities between humans and machines were real
language
Language
  • The rules of language are analogous to a computer program.
  • The set of universal rules in grammar is analogous to the operating system of the human mind.
  • Mind was thus necessary to explain language.
  • Minds operate according to a set of universal logical rules.
  • A theory of mind could be modeled in the form of a computer program.
warren mcculloch
Warren McCulloch
  • A neuropsychiatrist.
  • Provided the biological information necessary to appropriately model the behaviours of neurons.
walter pitts
Walter Pitts
  • A mathematician.
  • Provided the math necessary to model the behaviour of neurons.
logical operations
Logical Operations

“If A then B”

Neuron A

Neuron B

logical operations15
Logical Operations

“If A or B then C”

Neuron A

Neuron B

Neuron C

logical operations16
Logical Operations

“If A and B then C”

Neuron A

Neuron C

Neuron B

logical operations17
Logical Operations

Neuron A

“If A and not B then C”

Neuron C

Neuron B

summary
Summary
  • The functional relationships between neurons were represented in terms of Boolean logic.
  • The mental functions of reasoning could be seen as being embodied in the physiology of the brain.
concluding remarks
Concluding Remarks
  • McCulloch and Pitts’s networks were possible neural networks, and were useful models.
  • Their model is a useful tool for rigorous symbolic treatment of known neural nets and provides an easy method for constructing hypothetical neural networks with known properties.