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

radio station.


C. PROCEDURE

The basic procedure was similar to that of earlier experiments on the differential reinforcement of two classes of discriminated interresponse times (e.g., Hawkes & Shimp, 1974). Two temporal patterns, a shorter and a longer, were concurrently reinforced. A variable-interval schedule arranged a distribution of minimum interreinforcement intervals and a pattern-selection procedure randomly assigned each reinforcer arranged by the variable-interval schedule to one of the two patterns.

Consider the details of the variable-interval schedule. A single timer queried a random number table every one sac to determine whether to arrange a reinforcer. The probability of arranging a reinforcer every one sac was 0.050, so that the schedule was a random interval 20 sac schedule. Once a reinforcer was arranged, the 1-sec timer stopped until the reinforcer was collected, or until the reinforcer was cancelled by an excessively long pause. If a rat paused for longer than the upper bound of the longer reinforced pattern, an arranged reinforcer was cancelled. This was to discourage long pauses.

Now consider the pattern-selection procedure. The durations of the reinforced pairs of patterns, shorter and longer, are shown for each condition in Table 13-1. Throughout the experiment the longer pattern either was exactly or approximately three times longer, and also three times wider, than the shorter pattern. Thus, as the absolute duration was varied, relative duration remained fixed. The assignment of each reinforcer arranged by the variable-interval schedule to a pattern was random in the sense that the patterns were equally likely to be selected and the pattern chosen for one reinforcer was independent of the pattern chosen for the preceding reinforcer.


TABLE 13.1
Experimental Conditions
Condition
number
Reinforced classes of interresponse times
(lower and upper bounds in sec)
Shorter Longer
1 1.5 - 2.5 4.5 - 7.5
2 2.5 - 4.0 7.5 - 12.0
3 4.0 - 7.0 12.0 - 18.0
4 1.5 - 2.5 4.5 - 7.5
5 1.0 - 2.0 3.0 - 6.0
6 0.75 - 1.5 2.0 - 3.5
7 0.5 - 1.0 1.5 - 3.0

-219-

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.
One moment ...
Project items

Items saved from this book

This book has been saved
Highlights (0)
Some of your highlights are legacy items.

Highlights saved before July 30, 2012 will not be displayed on their respective source pages.

You can easily re-create the highlights by opening the book page or article, selecting the text, and clicking “Highlight.”

Citations (0)
Some of your citations are legacy items.

Any citation created before July 30, 2012 will labeled as a “Cited page.” New citations will be saved as cited passages, pages or articles.

We also added the ability to view new citations from your projects or the book or article where you created them.

Notes (0)
Bookmarks (0)

You have no saved items from this book

Project items include:
  • Saved book/article
  • Highlights
  • Quotes/citations
  • Notes
  • Bookmarks
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.

(Einhorn, 1992, p. 25)

(Einhorn 25)

1

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

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?

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.

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn, 1992, p. 25).

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences."1

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

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.