Michael Rescorla - Computational theory of mind Flashcards
Computationalism
CTM (Computational Theory of Mind)
A theory positing that the mind functions similarly to a computational system, particularly a Turing machine.
Neurophysical description
Refers to the neurophysiological properties of an organism’s brain or body.
Intentional description
Describes mental states in terms of their representational properties.
Turing Machines
Algorithm: A step-by-step procedure for solving a problem.
Turing machine: An abstract model of a computing device with infinite time and storage, manipulating symbols.
Memory Structure: Linear arrangement with infinite cells.
Processor: Moves one cell at a time, accessing memory.
States: Finite machine states defining processor behavior.
Operations: Write, erase, move left or right.
UTM (Universal Turing Machine): Can replicate any other Turing machine.
Artificial Intelligence
Mechanization of thought, examples include Deep Blue and driverless cars. AI for decision-making, such as Bayesian decision theory.
The Classical Computational Theory of Mind (CCTM):
Views mental activity as Turing-style computation. Mental processes compared to Turing machines. Differentiates from physicalist and dualist views.
Machine Functionalism
Mental states are understood as functional states within a system. Posits mental activity as implementing a probabilistic automaton.
The Representational Theory of Mind (RTM)
Mentalese is compositional. Discusses productivity and systematicity in thought.
Neural Networks
Comprise input, hidden, and output nodes. Learning involves adjusting weights. Includes feedforward and recurrent networks.
Relation Between Neural Networks and Classical Computation:
Classical computation involves rule-governed symbol manipulation, while neural networks are non-symbolic.
Computation and Representation:
Representational mental states have content that represents the world. Discusses intentional realism, eliminativism, and interpretivism.
Computational Neuroscience
Uses biologically realistic neural networks to model cognitive phenomena.
Computation as Formal
Formal-syntactic conception of computation.
Externalism About Mental Content
Mental content is partly determined by factors outside the thinker.
Content-Involving Computation:
No rigid demarcation between computational and intentional description.