ACT-R sources for Balance Scale Task Model
Below are the files necessary to replicate the results presented in Van
Rijn, H., Van Someren, M., & Van der Maas, H. (2003) Modeling Developmental
Transitions, Cognitive Science, 27(2), 227-257. [PDF preprint] All files are also
available in a single zip archive.
Balance Scale Task ACT-R sources
- model5.lisp
- The ACT-R sources of
the model presented in Modeling Developmental Transitions.
- lisp.lisp
- Additional lisp code for
the balance scale task model, e.g., code to present balance scale problems.
- wpp.lisp
- Lisp code to write the
utility/expected gain (P and C) parameters of specified production rules to
a file. Used for generating data presented in the paper.
Balance Scale Task MatLab source
Below are three MatLab files that are a ``proof of existence'' of the three
hysteresis patterns given the structure of the model presented above.
- delay.m
- Shows Delay pattern
- maxwell.m
- Shows Maxwell pattern
- suddenjump.m
- Shows Sudden Jump
You will need some or all of the files below to run the above MatLab files.
- DistributeReferences.m
-
- act.m
-
- adjustParams.m
-
- baselevelLearningEquation.m
-
- interpretExitflag.m
-
- myact.m
-
- normalBaseLevel.m
-
- optimizedBaseLevel.m
-
ACT-R architecture
- actr.lisp.gz
- The ACT-R v5.0 sources,
based on the version at http://act.psy.cmu.edu/ACTR5.0.
Because of problems with the new production composition mechanism, some of
the functions originally in this file are now, in modified version, in
pc.lisp.
- pc.lisp
- Hacked version of some of the
original ACT-R functions.
Composition Issues
- composition_problem.doc
- Short
description of the problems encountered with the composition mechanism. (See
comments in pc.lisp for some other, minor issues.)
- demo_of_problem.actr
- ACT-R sources
that, if loaded in the original ACT-R v5.0, illustrates the encoutered composition
problem.
For more information, please contact hvr@van-rijn.org.
Hedderik van Rijn, 020408 (updated: 030220)