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- Path: sparky!uunet!wupost!darwin.sura.net!paladin.american.edu!auvm!UIUC.EDU!G-CZIKO
- Message-ID: <199212250541.AA14614@ux1.cso.uiuc.edu>
- Newsgroups: bit.listserv.csg-l
- Date: Thu, 24 Dec 1992 23:41:55 -0600
- Sender: "Control Systems Group Network (CSGnet)" <CSG-L@UIUCVMD.BITNET>
- Comments: Warning -- original Sender: tag was cziko@UX1.CSO.UIUC.EDU
- From: "Gary A. Cziko" <g-cziko@UIUC.EDU>
- Subject: Seeing the Loop
- Lines: 53
-
- [from Gary Cziko 921223.1815 GMT]
-
- Rick Marken (921223.1300) says:
-
- >For me, one of the most dramatic demonstration of this fact is given
- > in my ?Cause of control movements...? experiment (included in Mind
- >Readings). This experiment shows beyond doubt that THE STIMULUS
- >in a tracking task IS NOT THE CAUSE OF OUTPUTS that control the
- >stimulus; there is no cause-effect (where it seems that there must
- >be) because the cause and effect are IN A LOOP. It?s the loop
- >that changes everything that has always been taken for granted in
- >all previous approaches to understanding human nature.
-
- I must admit that this short paper by Rick is my ALL TIME FAVORITE of
- demonstrations of perceptual control. I thought I understood the basics of
- PCT before I first read it and then when I realized that Rick's results
- seemed like magic I realized that did not. Now when I read it, the results
- seem only 50% magic. Progress, but I still have a way to go (but I was
- happy that Rick himself admitted to me last July in Durango that he also
- finds the results somewhat mysterious).
-
- I strongly recommend that anyone wanting to understand PCT read Rick's
- paper. So let me (as my Christmas gift to the net) remind people how they
- can do this.
-
- 1. Get the paper from your local academic library in the journal in which
- it as originally published:
-
- Marken, R. (1980). The cause of control movements in a tracking task.
- _Perceptual and Motor Skills, _51_, 755-758.
-
- 2. Buy the collection of Rick's papers published as _Mind Readings_
- available from The Control Systems Groups, 460 Black Lick Road, Gravel
- Switch, KY 40328. Price is $18 postpaid. (I believe that Greg Williams
- told me he will send the book anywhere in the world for that price, but
- you should check with Greg <4972767@mcimail.com> first about this for
- orders coming outside the USA).
-
- This also reminds me that I was going to try to devise a convincing
- portable "manual" demonstration of what Rick does in this paper. I'll keep
- the net informed if I come up with something useful.--Gary
-
- P.S. Rick, why do I keep seeing ? in your posts where single and double
- quote marks should be"""
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