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Author (down) Beckers, T.; Miller, R.R.; De Houwer, J.; Urushihara, K. doi  openurl
  Title Reasoning rats: forward blocking in Pavlovian animal conditioning is sensitive to constraints of causal inference Type Journal Article
  Year 2006 Publication Journal of experimental psychology. General Abbreviated Journal J Exp Psychol Gen  
  Volume 135 Issue 1 Pages 92-102  
  Keywords Animals; *Association Learning; *Cognition; *Conditioning, Classical; Cues; Fear; Female; Inhibition (Psychology); Male; Motivation; *Problem Solving; Rats; Rats, Sprague-Dawley  
  Abstract Forward blocking is one of the best-documented phenomena in Pavlovian animal conditioning. According to contemporary associative learning theories, forward blocking arises directly from the hardwired basic learning rules that govern the acquisition or expression of associations. Contrary to this view, here the authors demonstrate that blocking in rats is flexible and sensitive to constraints of causal inference, such as violation of additivity and ceiling considerations. This suggests that complex cognitive processes akin to causal inferential reasoning are involved in a well-established Pavlovian animal conditioning phenomenon commonly attributed to the operation of basic associative processes.  
  Address Department of Psychology, Binghamton University, State University of New York, NY, USA. tom.beckers@psy.kuleuven.be  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0096-3445 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:16478318 Approved no  
  Call Number refbase @ user @ Serial 155  
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Author (down) Aust, U.; Huber, L. doi  openurl
  Title Picture-object recognition in pigeons: evidence of representational insight in a visual categorization task using a complementary information procedure Type Journal Article
  Year 2006 Publication Journal of Experimental Psychology. Animal Behavior Processes Abbreviated Journal J Exp Psychol Anim Behav Process  
  Volume 32 Issue 2 Pages 190-195  
  Keywords Animals; Classification; *Cognition; Columbidae; *Discrimination Learning; *Form Perception; *Generalization (Psychology); Humans; Perceptual Closure; Photic Stimulation; Photography; *Recognition (Psychology)  
  Abstract Success in tasks requiring categorization of pictorial stimuli does not prove that a subject understands what the pictures stand for. The ability to achieve representational insight is by no means a trivial one because it exceeds mere detection of 2-D features present in both the pictorial images and their referents. So far, evidence for such an ability in nonhuman species is weak and inconclusive. Here, the authors report evidence of representational insight in pigeons. After being trained on pictures of incomplete human figures, the birds responded significantly more to pictures of the previously missing parts than to nonrepresentative stimuli, which demonstrates that they actually recognized the pictures' representational content.  
  Address Department for Behavior, Neurobiology and Cognition, University of Vienna, Austria. ulrike.aust@univie.ac.at  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0097-7403 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:16634663 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2759  
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