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- Posted-Date: Sun, 26 Jul 92 13:28:18 PDT
- Message-ID: <199207262028.AA01384@aerospace.aero.org>
- Newsgroups: bit.listserv.csg-l
- Date: Sun, 26 Jul 1992 13:28:18 PDT
- Sender: "Control Systems Group Network (CSGnet)" <CSG-L@UIUCVMD.BITNET>
- From: marken@AERO.ORG
- Subject: Got them lonely, low-down PCT blues
- Lines: 86
-
- [From Rick Marken (920726)]
-
- Gary -- Still working on revision of Blindmen. By the way,
- why did you send me that direct note about Greg's net feedback
- problems?
-
- Martin -- Did you try to simulate the single ECS "hidden bomb" yet?
- I think I know what happens -- no bomb again I'm afraid; but try it
- and see. I am working on developing an experiment based on my
- observation (stimulated by one of your earlier "bomb" posts) that
- the addition of a new control system can create problems if control
- of that variable requires the inconsistent use of outputs that are
- already being used to control another variable -- but that this
- depends on how the person originally learned to control the first
- variable. I think this should be fairly easy to set up -- and I
- think it could be pedagogically interesting also.
-
- The subject line of my post refers to the fact that I was having a
- bit of the PCT blues yesterday. I was feeling blue because I was
- getting tired of PCT being perceived as such a "fringe" approach in
- the life sciences. While I dearly love and enjoy working with the
- dozen or so people I know who really understand PCT, it gets a bit
- lonely out here without them (though the net helps). I guess I just
- don't really like the fact (though I understand why it happens) that
- people (often colleagues) have such an allergic reaction to PCT. I
- want to cry " What's wrong with PCT? What don't you like? Why don't
- you want to just give it a chance? Why don't you want to a least
- TRY to understand it?" I know that PCT contradicts much of the basic
- dogma of the life sciences. But people seem so eager to overthrow
- dogma - to embrace ANY "brave new approach" to understanding life.
- Why don't they spend some time trying to understand PCT?
-
- Of course, I know the answers to these questions (at least, from a
- PCT perspective) -- but it's still depressing sometimes. My
- current depression was set off on friday when I had a meeting with
- a fellow human factors engineer from another company. He was a very
- nice, charming person. He was also a person who had done research
- on control models of people (from the engineering perspective --
- trying to discover how the input -- our disturbance -- was related
- to output). He was interested in my work and asked for a reprint.
- The article looked familar to him and it turned out he had been a
- reviewer on it; it was kind of embarassing because he had given it
- a relatively negative review (not real bad, luckily, and I didn't
- look up how I replied to him -- the article was published, after all --
- but that should be a lesson to me to be a lot nicer in my replies
- to reviewers; they are just people and I might even know 'em).
- The depressing part of this encounter came from the realization
- that I was doing research from what I'm sure this fellow saw
- as such a "fringe" perspective. Despite what it might seem like, I
- DON'T LIKE BEING PART OF A REVOLUTIONARY MOVEMENT. It is NOT fun
- being part of a psychological movement that is viewed as "fringe",
- "radical" or whatever by 99.9% of my colleagues. The only
- reason I am a member of this weird group is because I value
- intellectual integrity even more than I value being part of the
- majority (the group I REALLY want to belong to). So please --
- save me from the clutches of this radical cadre. TELL ME WHAT IS
- WRONG WITH PCT -- PLEASE!! Then I can go off and be in a big,
- popular group like the neural net group or the artificial life
- group (they have more famous people too; and a glossy covered
- newletter).
-
- One helpful therapy for these blues of mine would be if someone
- could explain (and show, through modelling and experimentation)
- why a particular theory is BETTER than PCT. Randy Beer tried to
- help me on this some time ago but failed rather miserably.
- Maybe it was my fault -- being too dumb to understand him. So,
- for my sake, please keep arguments against PCT simple and clear
- (and, hopefully, written in BASIC or PASCAL). Please, NetNiks,
- help me figure out what is wrong with PCT -- let me know what
- every other psychologist seems to know -- so I can rejoin that
- happy (and moral) majority. If you don't know what is wrong with
- PCT (possibly because you are already part of CSG) then ask
- a friend who knows enough about PCT to know that it's wrong.
- Then have the friend explain it to me (why PCT is wrong, that is).
-
- Thanks.
-
- Rick
-
- **************************************************************
-
- Richard S. Marken USMail: 10459 Holman Ave
- The Aerospace Corporation Los Angeles, CA 90024
- E-mail: marken@aero.org
- (310) 336-6214 (day)
- (310) 474-0313 (evening)
-