Re: Turing Machines and Minds

On Apr 2, 10:03 pm, "Glen M. Sizemore" <gmsizemo...@xxxxxxxxx> wrote:
...
Consider a rat that has acquired a food-reinforced
lever-press response. The rat has been exposed to a
condition where a particular light is always on
during the session. Now, the conditions are changed
such that, the old light is periodically extinguished,
and a different light is illuminated. During this
period of time, lever-pressing does not produce food
delivery. At first, the rat continues to respond
during the second light, but eventually it stops.
It responds at a high rate, of course, when the first
light is illuminated. Clearly, it has adapted (or its
behavior has adapted - it has learned) to the
situation, and its responding is clearly controlled
by the stimuli (i.e., using ordinary language, we
would say that it reacts to the stimuli). Now, if
these contingencies are kept in force, and all other
relevant variables are held reasonably constant, the
behavior will not vary much from session to session.


This leaves begging the hard question for duplicating
this is a machine, how is the complex input processing
and output generating to locate and press the lever
work? You take the hard bit as a given but it is the
problem to be solved.


Associating is a no brainer. How things are found to be
associated in the first place is the hard bit to explain.
How more complex behaviors can be built out of simple
behaviors is the question. What are the innate internal
requirements for any of this to happen in the first place
has to be answered.


Maybe this program will impress you:

Consider a program that has acquired an F_keypress
reinforced print "lever_press" response. The program
has been exposed to a condition where key F8 is
always on during the session. Now, the conditions
are changed such that, the key F8 is periodically
not pressed, and a different key, F9, is pressed.
During this period of time, print "lever_press" does
not produce F_keypress. At first, the program
continues to respond during the F9 key press, but
eventually it stops. It responds at a high rate, of
course, when the first key F8 is pressed. Clearly,
it has adapted (or its behavior has adapted - it has
learned) to the situation, and its responding is
clearly controlled by the stimuli (i.e., using
ordinary language, we would say that it reacts to
the stimuli). Now, if these contingencies are kept
in force, and all other relevant variables are held
reasonably constant, the behavior will not vary much
from session to session.

--
JC


.

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