Unexpected downshifts in reward magnitude induce variation in human behavior
Psychonomic Bulletin & Review (2014) - Comment
pubmed: 23884690  doi: 10.3758/s13423-013-0490-4  issn: 1531-5320  issn: 1069-9384 

Greg Jensen, Patricia D. Stokes, Anthea Paterniti, Peter D. Balsam