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- Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
- Path: sparky!uunet!paladin.american.edu!auvm!BEN.DCIEM.DND.CA!MMT
- Message-ID: <9208291850.AA26726@chroma.dciem.dnd.ca>
- Newsgroups: bit.listserv.csg-l
- Date: Sat, 29 Aug 1992 14:50:51 EDT
- Sender: "Control Systems Group Network (CSGnet)" <CSG-L@UIUCVMD.BITNET>
- From: mmt@BEN.DCIEM.DND.CA
- Subject: Re: Prolegomenon; Misc
- Lines: 40
-
- [Martin Taylor 920829 14:45]
- (Bill Powers 920828.1800)
-
-
- >Definition 1 and Axiom 1 state that control consists of comparing
- >perceptual signals with reference signals and acting to maintain them
- >in a match. Axiom 2 states that people can't alter each others'
- >reference signals. The definition and the two axioms thus indicate
- >that there is no way for people to alter each others' perceptual
- >signals if those signals are under control. We exclude, I assume, the
- >application of overwhelming physical force as being outside the
- >meaning of "manipulation."
- >
- >This conflicts with:
- >
- >>Axiom 3. Other persons CAN, in general, directly ("causally")
- >generate
- >>disturbances which alter a given person's current perceptual signals.
- >
- >The only way to resolve this conflict is to insert the word
- >"uncontrolled" between "current" and "perceptual signals."
- >
-
- Wait a minute here...This is one of the things I was talking about when I said
- that the dynamics are important. You are dealing with steady states, whereas
- the effect the attempting controller would have is transient. Even in the
- steady state, when there is conflict, two controllers attempting to move
- a single CEV to different levels, each will show some persistent error, so
- even in the steady state one can influence the other's controlled percepts.
- How much the "controller" influences the "controlee"s percept will depend on
- who has the higher insistence (gain), and that could be interpreted as who
- applies the more overwhelming physical force. We do not exclude that, I think,
- because it applies to a greater or lesser degree in every instance of conflict.
-
- Besides, does planting a fence constitute "overwhelming physical force?" It
- certainly affects the child's ability to perceive itself as being in the
- middle of a busy street. The parent's actions do affect the child's controlled
- percepts, even in the steady state and without the parent experiencing conflict.
-
- Martin
-