# VI-VI Simulation: blush

**URL:** http://discourse.iapct.org/t/vi-vi-simulation-blush/11986
**Category:** CSG1994
**Created:** [October 19, 1994, 7:07pm UTC](http://discourse.iapct.org/t/vi-vi-simulation-blush/11986 "1994-10-19T19:07:10Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![Tom\_BOURBON3](http://discourse.iapct.org/letter_avatar_proxy/v4/letter/t/85e7bf/32.png) [@Tom\_BOURBON3](http://discourse.iapct.org/u/Tom_BOURBON3)
#### Post date: [October 19, 1994, 7:07pm UTC](http://discourse.iapct.org/t/vi-vi-simulation-blush/11986/1 "1994-10-19T19:07:10Z")

</div>

Tom Bourbon [941019.1301]

A self-correction for part of my reply:

> Tom Bourbon [941019.1000]

to:

> > [Bruce Abbott (941018.1300 EST)]

in which I quoted Bruce:

> ================================
> 
> [From Bruce Abbott (941018.1030 EST)]
> 
> > > Bill Powers (941017.1030 MDT)
> > 
> > Bruce Abbott (941016.1530 EST)
> 
> Bruce:
> 
> > I've actually WRITTEN programs that execute VI (and other) schedules  
> > of reinforcement and collect the data, so if you like we can use one of  
> > those as the basis for the environmental side of the simulation.
> 
> Bill:
> 
> > > Wonderful. I'd like to see the programs. I can read the source code if  
> > > you email it to me (and Rick) or put it on the net. [TB -- I would also
> 
> like to see it, and I can. You included it in your reply to Bill.]
> 
> # Bruce: Bill, I haven't fished out my old programs yet. Meanwhile, here is my version of the simulation, complete with a VERY dumb pigeon. Both the pigeon and schedule are modeled as constant-probability response generators.

Tom (blush) then:

> You model the pigeon as a probabilistic response generator, rather than as a  
> control system. I had guessed you might use that kind of model, after  
> I read some of your earlier posts. I am not being critical. I am simply  
> trying to understand why I was "probing" you on what you thought about the  
> fact that, in a PCT model, behavior is driven by k(error), not by perception.  
> I did not have a clear idea about how you think behavior is generated. I  
> still don't. My problem, not yours.

"My problem," indeed! What I overlooked was the (glaringly) obvious fact  
that you were suggesting that the \_environment half\_ of your earlier model  
might be useful during the collaboration to build a PCT model for VI-VI  
simulations. Forget that part of my post, please.

All of my other comments and questions remain in effect -- at least until I  
discover my additional errors, later today.

Tom