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Author (up) Anderson , M.C.;Shettleworth, S.J. doi  openurl
  Title Behavioral adaptation to fixed-interval and fixed-time food delivery in golden hamsters Type Journal Article
  Year 1977 Publication Journal of the Experimental Analysis of Behavior (JEAB) Abbreviated Journal J Exp Anal Behav  
  Volume 27 Issue 1 Pages 33-49  
  Keywords  
  Abstract Food-deprived golden hamsters in a large enclosure received food every 30 sec contingent on lever pressing, or free while their behavior was continuously recorded in terms of an exhaustive classification of motor patterns. As with other species in other situations, behavior became organized into two main classes. One (terminal behaviors) increased in probability throughout interfood intervals; the other (interim behaviors) peaked earlier in interfood intervals. Which class an activity belonged to was independent of whether food was contingent on lever pressing. When food was omitted on some of the intervals (thwarting), the terminal activities began sooner in the next interval, and different interim activities changed in different ways. The interim activities did not appear to be schedule-induced in the usual sense. Rather, the hamsters left the area of the feeder when food was not due and engaged in activities they would normally perform in the experimental environment.  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0022-5002 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:16811980 Approved no  
  Call Number refbase @ user @ Serial 388  
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