PCT and other disciplines

[From Bill Powers (921226.0700 MST)]

Eileen Prince (921225) --

To the limits of my knowledge, and these are great, I am in
fact trying to apply PCT; however, it doesn't always help with
those who are not of a PCT bent themselves. If you want me to
elaborate, ....

We are birds of a feather. By all means, elaborate.

···

---------------------------------------------------------------
Oded Maler (921226)--

I do like your sensible and realistic comments. Of course not
everyone is interested in PCT. And of course play is necessary --
doing things that have no immediate application, just to enjoy
the truth and beauty of whatever one can discover.

People who are doing, say, mathematics of non-linear dynamics
are interested in general properties of some systems obeying
certain rules. Period. Although some others may try to apply
this math to psychology by using the wrong (i.e., non-PCT)
model of behavior, it does not mean that some fundamental
truths about such systems are not relevant and will not be
needed when more complex PCT models will be built.

This is all true. I trust you aren't saying that ALL of the
studies of arbitrary systems will prove to be relevant and
applicable to understanding human behavior.

The world (at least not all of it) does not turn around the
PCT-non-PCT controversery in the explanation of human behavior.
This hard fact do not under-determine the *objective* beauty
and power of PCT, nor its importance as a stage in the
development of human understanding. But not realizing this, and
classifying all the rest of the world as "us" and "them" might
lead an untrained observer to perceive a peace-loving other-
cheek-turner as a fanatic.

A little fanaticism is appropriate if it's limited to the
boundaries of the PCT-non-PCT controversy. You need some kind of
support structure when there are so many people who look on your
views with disdain, condescension, and irritation, apparently
believing that this is how science is supposed to work.

On another topic, I'm reading Sacks' "The man who mistook his
wife for a hat" and although apparently the author does not
know that ..., I think it is really worth reading. It might be
intersting to try to give PCT crude explanations of the
phenomenon he describes.

The literature of mental malfunction must be rich with
possibilities for the furtherance of HPCT. To make use of it,
however, there must be people willing to sort through the
mountains of information available to look for dependencies among perceptual
processes and begin the enormous task of drawing the
map we need. A large obstacle is the fact that the behavioral
deficits that have been found have been characterized without any
coherent model in the background. We need a systematic approach
to this subject with model-relevant experiments used for
diagnosis instead of rather casual subjective impressions of what
is wrong. It may be that even with all that data available, the
facts that we need to know simply have not yet been observed.

The following is a cross-posting from the Control (in the
mathematical engineering sense) mailing list. It contains
titles of all papers in the subject published recently. Just
for information I don't claim anything will be relevant.

If you wanted to make me feel ignorant, you certainly succeeded.
How I wish that I could understand all that stuff! The next great
leap forward in PCT is going to be generated by a person who is
comfortable with those advanced mathematical treatments, AND who
has a clear idea of the phenomena of behavior that need to be
explained. That person hasn't appeared yet, and probably won't
until the basic concepts of PCT have been accepted widely enough
that a person could devote a career to it.

I would love to write a paper for journals like these explaining
what we are trying to do with PCT and how people with such great
talents could contribute to the work. But such a paper would have
to be written by someone who speaks the language; anything I
wrote would be considered too simple-minded even to be
interesting to the readership. PCT needs translators; people like
Gary Cziko and Hugh Petrie in education, and McPhail, Tucker, and
McClelland in sociology, and Robertson and Goldstein in
psychotherapy, and Ford in counselling and social work, and Nevin
and Andrews (and more) in linguistics, and Forssell and Soldani
in management consulting, and Martin Taylor and the various Gangs
(of 1, 3, or 5) in the design of complex systems, and Cliff
Joslyn and his cohort in cybernetics, and Rick Marken in (now)
human factors, and Tom Bourbon in neuropsychology, and all the
rest who have a foothold in two worlds, one of which is PCT.

The world of psychology seems almost closed to PCT, but
psychologists are not the only ones who are trying to understand
human nature. PCT can spread to other disciplines, and is doing
so. In every case, however, this spread has been none of my
doing, but the doing of others who can take the basic ideas to
their own colleagues and explain them in relation to the
interests of those other disciplines. There always remains the
problem of displacing the old concepts of human behavior,
traceable mostly to conventional psychology and biology, but this
is done most easily by people who grew up with those ideas and
understand how they look to those who have adopted them.

We lack biologists and biochemists and control-system engineers,
among others. Maybe these, along with psychologists, are the
toughest nuts to crack because of the direct contradictions
involved in biology, and the implied competition in control engineering. If
anyone knows people in these fields who might be
willing to join in, by all means try to recruit them.

And you, Oded. Are you all alone in your appreciation of the
concepts of PCT? Do you have any colleagues who show any
interest?
-----------------------------------------------------------
Best,

Bill P.

Dear Bill,

Thanks for the quick comment and invitation. It feels good to have
someone pay attention to what I say and/or ask.

I will write briefly for now, as my (autistic) daughter Katy is home for
the holidays and I both need to supervise and want to be with her.
Also,
I hope you and yours are having a wonderful holiday season.

I had two thoughts in mind when I wrote my comment:
        1. In working with those who have minds that are closed to PCT
and any theory other than the one they dogmatically follow, I have found
it difficult to introduce new ideas. This goes for the ESL teachers I
work with and supposedly supervise and others who "manage" within our
program. It also goes for the educators who work with Katy and are of
the B-Mod persuasion. However, with these latter I have found it useful
to use their terminology as much as possible and praise them for the
wonderful successes that have in fact taken place. As for getting more
control FOR Katy, it's hard, but I think my deliberate attempts to make
them think that I partially agree with their approach and at least
understand it have given me sympathetic ears. There has been far less
success with many of the ESL type.

        2. In trying to operate from a PCT approach myself, I find
again that the closed mind is the greatest "enemy." (Naturally, I can't
comment on the degree to which my own mind is closed :-).) Let's say I
choose to think of my current spouse or one of my daughters in a certain
way, trying to avoid the stereotypes that I naturally grew up with.
(And, believe me, those have changed anyhow!) The other person may have
already neatly categorized me as wife, mother, etc. and found me to fall
short of the definition. What to do? Say fine, this is what I am, take
it or leave it. (Often my response, though not overtly.) Or to try to
change their perceptieon in other ways, and then how? (It's probably a
mistake to try to change someone's perceptions. I can probably describe
what is going on better than affect it, except in myself. Then, just
because I am perversely human, I don't choose to easily end
relationships just because the other does not perceive me as I am.
Though perhaps I eventually do/have. But with my children?
Completely?)

Happy Holidays again,

Eileen

Apologies to all. I had meant my last posting to go to Bill but sent it
to the entire list instead.

Eileen

[From Oded Maler (921229)]

[Bill Powers (921226.0700 MST)]

  This is all true. I trust you aren't saying that ALL of the
  studies of arbitrary systems will prove to be relevant and
  applicable to understanding human behavior.

I agree and even more, only a small fraction of it will be relevant
to anything... but which fraction?

* A little fanaticism is appropriate if it's limited to the
* boundaries of the PCT-non-PCT controversy. You need some kind of
* support structure when there are so many people who look on your
* views with disdain, condescension, and irritation, apparently
* believing that this is how science is supposed to work.

Each community has its own system of rewards and encouragements,
whether it is the church of established Science or the cult of
enlightened PCTers. Maybe if you could offer tenures, you would have
by now more experimental research done, but you will lose some the
flame and devotion to truth. Just look at the history of some
well-known religions.

About Sacks's book. I still recommend it (it is very easily read,
especially for native English speakers). It has some cases of people
who lost proprioperception and compenstated it thry visual feed-back
loops, etc.

···

*
* >The following is a cross-posting from the Control (in the
* >mathematical engineering sense) mailing list. It contains
* >titles of all papers in the subject published recently. Just
* >for information I don't claim anything will be relevant.
*
* If you wanted to make me feel ignorant, you certainly succeeded.
* How I wish that I could understand all that stuff!

Me too!

The next great
* leap forward in PCT is going to be generated by a person who is
* comfortable with those advanced mathematical treatments, AND who
* has a clear idea of the phenomena of behavior that need to be
* explained. That person hasn't appeared yet, and probably won't
* until the basic concepts of PCT have been accepted widely enough
* that a person could devote a career to it.
*
* I would love to write a paper for journals like these explaining
* what we are trying to do with PCT and how people with such great
* talents could contribute to the work. But such a paper would have
* to be written by someone who speaks the language; anything I
* wrote would be considered too simple-minded even to be
* interesting to the readership. PCT needs translators;

*
* The world of psychology seems almost closed to PCT, but
* psychologists are not the only ones who are trying to understand
* human nature. PCT can spread to other disciplines, and is doing
* so. In every case, however, this spread has been none of my
* doing, but the doing of others who can take the basic ideas to
* their own colleagues and explain them in relation to the
* interests of those other disciplines. There always remains the
* problem of displacing the old concepts of human behavior,
* traceable mostly to conventional psychology and biology, but this
* is done most easily by people who grew up with those ideas and
* understand how they look to those who have adopted them.
*
* We lack biologists and biochemists and control-system engineers,
* among others. Maybe these, along with psychologists, are the
* toughest nuts to crack because of the direct contradictions
* involved in biology, and the implied competition in control engineering. If
* anyone knows people in these fields who might be
* willing to join in, by all means try to recruit them.
*
* And you, Oded. Are you all alone in your appreciation of the
* concepts of PCT? Do you have any colleagues who show any
* interest?
* -----------------------------------------------------------

To clarify matters let me state that I'm almost 36, with Ph.D. in
computer science (automata theory, logic, verification of programs)
and without a permanent position. If the latter fact will not change
within 3-4 years, I will have to abandon my academic habits and
addictions (reading e-mail, visiting libraries, day-dreaming on some
interesting problems, proving some theorems and writing papers from
time to time, etc.) and start getting paid for doing things that
are of interest to other but not to me. In order to prevent this
prostitutional nightmare from becoming true, I must have some
recognized achievements which will somehow fall within the boundaries
of some discipline. My only chances are in the neighborhood of
computer science. My niche (hybrid discrete-continuous dynamical
systems) is already enough relatively multi-disciplinary (bridging
between CS and Control people) to be dangerous, and mixing it with
an (unrecognized!) species of the life/mind sciences will do me no
good.

My background in the mathematics of control is probably weaker than
yours, but I'm in the situation of knowing some (friend of cousin
of..) control mathematicians and knowing what they are talking about.
Your main problems, I think, will be to define the environment, (Boss
reality, CEV etc.). The type of results these people usually have is
of the form "given an environment obeying such and such restrictions
(including stochastic ones), a controller defined like this and that
will achieve performance such and such (e.g., mean error smaller than
something). " Apparently you might want to prove some properties of
your infamous hierarchical servo-loops aka HPCT, but what kind of
properties exactly? Does the fact they they model living systems
play some role? I think a first step in any direction is to state
exactly what is your current dissatisfaction with the mathematical
state-of-the-art of PCT. And please do it very slowly in small
pieces, because I'm a very atypical pseudo-mathematicians.

Best regards

--Oded

p.s.

To Rick; Your atittude towards Jacob might change a bit if you notice
that his cheating Esau was one of the first instances of manipulating
perceptual variables of others (Isaac's) . Maybe he predated Bill in
discovering some levels of PCT, although at that time, since he didn't
yet have principles, he abused is advanced state of knowledge. Also,
criticising his "cowardness" when returning to Knaan, is not
consistent with your attitude toward conflicts. He was seeking
a compromise and was ready to offer Esau some of his herds, instead of
getting into a fight.

--

Oded Maler, LGI-IMAG (Campus), B.P. 53x, 38041 Grenoble, France
Phone: 76635846 Fax: 76446675 e-mail: maler@vercors.imag.fr