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Waiting for better, not for more: corvids respond to quality in two delay maintenance tasks

Authors
  • Hillemann, Friederike
  • Bugnyar, Thomas
  • Kotrschal, Kurt
  • Wascher, Claudia A.F.1, 2, 3, 4, 5, 6, 5
  • 1 Georg August University of Göttingen
  • 2 Konrad Lorenz Research Station
  • 3 Core Facility University of Vienna
  • 4 Department of Cognitive Biology
  • 5 University of Vienna
  • 6 Department of Behavioural Biology
Type
Published Article
Journal
Animal Behaviour
Publication Date
Jan 01, 2014
Accepted Date
Dec 12, 2013
Identifiers
DOI: 10.1037/a0031869
Source
Elsevier
Keywords
License
Unknown

Abstract

•We investigated the ability to cope with delayed gratification in crows and ravens.•We applied two delay maintenance tasks (accumulation and exchange paradigm).•Corvids were asked to optimize either the quality or the quantity of a food reward.•Corvids were willing to wait for a higher quality, but not for a higher quantity.•A few subjects were able to control impulses for prolonged time (up to 10 min).

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