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Unformatted text preview: in the nervous system-like computers. • The logical scheme is that of a neuron being
activated and then causing another neuron
to fire. (McCullough & Pitts, 1943) weiner---he introduced the idea that machines could be perposful. they
could make decisions on their own. Cybernetics
(Norbert Wiener - Engineer) -this is associated with feedback in the machine. give them
an algorithm and they can use this to make "decisions" In 1948... he published Cybernetics
which integrated developments in the
understanding of the human nervous
system, the electronic computer as
well as the operation of other machines. Introduced the radical idea...
Machines are purposeful... machines
that exhibit feedback can be considered to be
striving towards goals . information theory---we can take a complicated idea called information
and reduce it to a single decision between 2 alternatives. Information Theory
In the 1940s... Shannon developed the idea
that information can be thought of
as simply a single decision between
2 alternatives. circuits could embody operations of thought.
Claude Shannon Basic unit of information = bit (binary digit) Electrical circuits could embody
fundamental operations of thought 5 Neuropsychological Syndromes considerable convergences--the the brain injuries affected people of
all cultures and backgrounds. Aftermath of WWII... mental pathologies due to brain injury
were heavily studied.
Laboratories all over the world found considerable convergence
across cultural and linguistic boundaries.
e.g., Aphasia assumed similar forms despite wide differences
across languages. ! ! Common thread…
One can consider cognitive processes
apart from any physical embodiment
The focus is instead on the efficacy of
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This document was uploaded on 03/28/2014 for the course KNES 385 at Maryland.
- Fall '08