Bouts of responding on variable-interval schedules: effects of deprivation level

Journal of the Experimental Analysis of Behavior
Richard L Shull

Abstract

Rats obtained food pellets on a variable-interval schedule of reinforcement by nose poking a lighted key. After training to establish baseline performance (with the mean variable interval set at either 60, 120, or 240 s), the rats were given free access to food during the hour just before their daily session. This satiation operation reduced the rate of key poking. Analysis of the interresponse time distributions (log survivor plots) indicated that key poking occurred in bouts. Prefeeding lengthened the pauses between bouts, shortened the length of bouts (less reliably), and had a relatively small decremental effect on the response rate within bouts. That deprivation level affects mainly between-bout pauses has been reported previously with fixed-ratio schedules. Thus, when the focus is on bouts, the performances maintained by variable-interval schedules and fixed-ratio schedules are similarly affected by deprivation.

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Citations

Dec 15, 2012·Behavioral and Brain Functions : BBF·Ryan J BrackneyFederico Sanabria
Feb 27, 2016·Journal of Applied Behavior Analysis·Joshua JesselMahshid Ghaemmaghami
May 28, 2014·Journal of the Experimental Analysis of Behavior·Tracy T SmithRaymond C Pitts
Jun 8, 2012·Psychonomic Bulletin & Review·Takayuki Tanno, Alan Silberberg
Jul 19, 2011·Journal of the Experimental Analysis of Behavior·Ryan J BrackneyFederico Sanabria
Jul 4, 2020·Journal of the Experimental Analysis of Behavior·Jonathan W Pinkston, Alyssa Moore
Jun 17, 2006·Journal of the Experimental Analysis of Behavior·Christopher A PodlesnikTimothy A Shahan
Dec 17, 2008·Journal of the Experimental Analysis of Behavior·Matthew T BowersWilliam L Palya
Dec 17, 2008·Journal of the Experimental Analysis of Behavior·Robert Kessel, Robert L Lucke
Aug 1, 2013·Journal of the Experimental Analysis of Behavior·August F Holtyn, Kennon A Lattal
Sep 18, 2015·Journal of the Experimental Analysis of Behavior·Ryan J Brackney, Federico Sanabria
Aug 30, 2017·Journal of the Experimental Analysis of Behavior·Jonathan Buriticá, Cristiano V Dos Santos
Nov 13, 2020·PloS One·Kota Yamada, Atsunori Kanemura
Feb 26, 2021·Learning & Behavior·Ryan J BrackneyFederico Sanabria

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