Animal Cognition: Proceedings of the Harry Frank Guggenheim Conference, June 2-4, 1982

By H. L. Roitblat; T. G. Bever et al. | Go to book overview
Save to active project
THRESHOLD FIG. 26-11. Response probability functions for the absolute and relative response rules produced by variation in the threshold of the comparator. The absolute discrepancy rule results in constant variance similarly to the switch case, while the relative discrepancy rule results in scalar variance similarly to the pacemaker rate case.

but increasing spread, so that in the lower right panel near superposition is obtained, similarly to the lower right panel of Figure 26.9, for scalar pacemaker rate variance.

In both threshold cases, however, the function forms are different They are sharply peaked and, in fact, discontinuous at T = S+. The discontinuity stems from the possibility in theory that occasional negative threshold values may preclude responding for any discrepancy. If the account is altered to constrain all thresholds positive, then an alternative difficulty arises. Accuracy at T = S+ is always perfect. Unless further modified, these features make it unlikely that the smooth shoulders and less than perfect accuracy we see in Figure 26.2 may be reconciled with threshold variance alone.


VII. SUMMARY

Our conclusion from this analysis is that an information processing model that satisfies the proportionality or superposition finding may be obtained from an appropriate selection of a response rule and an adroit introduction of variance in the structures we describe. An absolute response rule

-482-

Notes for this page

Add a new note
If you are trying to select text to create highlights or citations, remember that you must now click or tap on the first word, and then click or tap on the last word.
Loading One moment ...
Project items
Notes
Cite this page

Cited page

Style
Citations are available only to our active members.
Sign up now to cite pages or passages in MLA, APA and Chicago citation styles.

Cited page

Bookmark this page
Animal Cognition: Proceedings of the Harry Frank Guggenheim Conference, June 2-4, 1982
Table of contents

Table of contents

Settings

Settings

Typeface
Text size Smaller Larger
Search within

Search within this book

Look up

Look up a word

  • Dictionary
  • Thesaurus
Please submit a word or phrase above.
Print this page

Print this page

Why can't I print more than one page at a time?

While we understand printed pages are helpful to our users, this limitation is necessary to help protect our publishers' copyrighted material and prevent its unlawful distribution. We are sorry for any inconvenience.
Full screen
/ 684

matching results for page

Cited passage

Style
Citations are available only to our active members.
Sign up now to cite pages or passages in MLA, APA and Chicago citation styles.

Cited passage

Welcome to the new Questia Reader

The Questia Reader has been updated to provide you with an even better online reading experience.  It is now 100% Responsive, which means you can read our books and articles on any sized device you wish.  All of your favorite tools like notes, highlights, and citations are still here, but the way you select text has been updated to be easier to use, especially on touchscreen devices.  Here's how:

1. Click or tap the first word you want to select.
2. Click or tap the last word you want to select.

OK, got it!

Thanks for trying Questia!

Please continue trying out our research tools, but please note, full functionality is available only to our active members.

Your work will be lost once you leave this Web page.

For full access in an ad-free environment, sign up now for a FREE, 1-day trial.

Already a member? Log in now.

Are you sure you want to delete this highlight?