Suboptimal choice in nonhuman animals: rats commit the sunk cost error
Learning & Behavior (2012) - Comment
pubmed: 22090197  doi: 10.3758/s13420-011-0055-1  issn: 1543-4508  issn: 1543-4494 

Paula Magalhães, K. Geoffrey White, Tessa Stewart, Emma Beeby, William Van Der Vliet