[ACT-R-users] Visual Perception in ACT-R

[Marc Halbruegge]

Hi!

I've a question concerning the feature scale of ACT-Rs vision.
In Anderson et al. (1997, full citation below) on page 446, there's an H
presented that is made up of Xs, like this:

X   X
X   X
XXXXX
X   X
X   X

The caption of the figure says "ACT-R can see either the H or the Xs
comprising the H, depending on how ACT-R sets its feature scale"

Now my questions:
- Is there an ACT-R model available that demonstrates this ability?
- How do I set the feature scale (not 'word' vs. 'letter' but
  'H' vs. 'X')?
- Or is this not yet implemented? (in the text, the claim is less
  strong: "... we would want [ACT-R] to recognize either the H or the Xs
  comprising the H.")

Thanks for your answers!

Greetings
Marc Halbruegge


Reference:

Anderson, J. R., Matessa, M., & Lebiere, C. (1997). ACT-R: A Theory of
Higher Level Cognition and Its Relation to Visual Attention.
Human-Computer Interaction, 12, 439-462.

-- 
Dipl.-Psych. Marc Halbruegge
Human Factors Institute
Faculty of Aerospace Engineering
Bundeswehr University Munich
Werner-Heisenberg-Weg 39
D-85579 Neubiberg

Phone: +49 89 6004 3497
Fax: +49 89 6004 2564
E-Mail: marc.halbruegge at unibw.de

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