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Keywords: zero rewardClose
Journal: Journal of Experimental Biology
J Exp Biol (2007) 210 (2): 269–277.
Published: 15 January 2007
... was in reward volume,and the variable distribution included zero rewards and had a high coefficient of variation (CV=s.d./mean). The variance itself did not affect risk sensitivity. Subjects were risk indifferent when the variable distribution did not include zero rewards, however these distributions were...