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- Posted-Date: Sat, 23 Jan 93 12:06:54 PST
- Message-ID: <199301232006.AA26460@aerospace.aero.org>
- Newsgroups: bit.listserv.csg-l
- Date: Sat, 23 Jan 1993 12:06:54 PST
- Sender: "Control Systems Group Network (CSGnet)" <CSG-L@UIUCVMD.BITNET>
- From: marken@AERO.ORG
- Subject: camps, Devil's Biblio
- Lines: 89
-
- [From Rick Marken (930123.1100)]
-
- Avery Andrews (930123.1825)
-
- >It might be useful to point out that PCT is basically in the same camp
- >as the dynamics crowd (yes, Kugler, Turvey, etc.) as opposed to `orthodox'
- >computational cog. sci, if there actually is such a thing anymore
-
- I liked to be in camps when I was a kid but not so much any more. And
- even then, I would NEVER have wanted to be in the Kugler, Turvey etc
- camp; I wanted to be in camp to explore, build models and have fun;
- that's why I like camp CSG.
-
- I understand the desire to find value in the work of those who are
- not PCT modellers but who are working on similar problems (like the
- motor control problems of Kugler, Turvey, et at). The downside of
- trying to control one's perceptions relative to this desire is
- beautifully illustrated in today's contribution to the Devil's
- Bibliography. It is a book that Ed Ford suggested that I look at:
-
- M.E. Ford and D. H. Ford (1987) Humans as self constructing living
- systems. New Jersey: Erlbaum.
-
- (No relation to Ed, I presume).
-
- I just got a copy yesterday and it is a goldmine for the Devil's
- Bibliography. D. Ford seems to be the big theorist here -- taking
- us to new horizons in the development of the control model. D. Ford
- is actually a modeller in the Carver/Scheier tradition -- diagrams
- are all you get. Also like Carver and Scheier he is a happy camper --
- he plays contentedly in the camps of Powers, Carver and Scheier, S. Beer
- (cybernetics guru), Kugler, et al, Pribram, D. McClelland, Bandura,
- Ashby, etc. Quite eclectic. If you read the overview (chapter one) you
- might see the problem with this accepting attitude; in order to have it,
- you MUST make some glaringly basic mistakes about PCT; M.E. Ford and
- D.E. Ford make PLENTY.
-
- Here are some examples for the DB.
-
- "Feedback informaiton enables a system to react to events after they
- have occurred. However, for a system to adapt efficiently in a variable
- environment, it must also be able to anticipate what is likely to happen
- in the future. Most human behavior is anticipary in nature. Anticipatory
- actions are accomplished through feedforward processes". p 9
-
- (Making camp cognition people happy).
-
- "Behavior patterns are a function of the informational-behavioral
- transations with the environment"
-
- (Making camp information processing happy; maybe camp interactionism
- too? nobody's been able to figure out what the kids in that camp actually
- DO though -- except be "real scientists").
-
- "Perception is 'direct' and provides accurate information about current
- events within and around a person" p. 22
-
- "Human sensori-perceptual capabilities are designed to collect information
- useful for GUIDING PRACTICAL ACTION in the physically structured and
- dynamically varying terrestrial environment in which humans evolved"
- p 22 emphasis mine
-
- (camp info processing and camp JJ Gibson)
-
- There are many others in this chapter but I'm getting nauseous.
-
- To be fair, Ford and Ford say many things about control that SOUND
- close to being correct -- or that are correct. But this is the
- problem of dealing with people who only deal with control theory as
- a set of diagrams and phrases --ie. with people who don't model. It
- is possible to take almost ANYTHING they say as a correct description
- of a control system.
-
- I think one way to show that Ford and Ford just don't really get it
- (no matter how often their words might overlap with PCT words) is
- that they NEVER explicitly describe the central fact about living
- control systems -- that they control their own PERCEPTION. They talk
- all around this but manage to avoid this fact about control and, thus,
- all that it implies about what we would want to know about the behavior
- of living control systems -- ie. what perceptions they ARE controlling.
- Ford and Ford (like all those who don't get PCT) take behavior at face
- value -- they assume that what THEY PERCEIVE about the organism's doings
- is what the organism IS DOING (controlling). They have quite a way to go;
- I'm afraid they (like those in the rest of the camps) think they are
- just about there. Too bad.
-
- Best
-
- Rick
-