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  1. Heroin addicts have higher discount rates for delayed rewards than non-drug-using controls.Kris N. Kirby, Nancy M. Petry & Warren K. Bickel - 1999 - Journal of Experimental Psychology: General 128 (1):78.
  • The information capacity of the human motor system in controlling the amplitude of movement.Paul M. Fitts - 1954 - Journal of Experimental Psychology 47 (6):381.