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5 statistical tests used (binomial test, Spearman rank correlation, one-sample t test, likelihood ratio test) were considered significant at p<0.05. ... We quantified the animal's choice from the probability of choosing one option over its alternative,

IAC double-walled, sound-attenuated test booth.The preexperimental valuation lasted approximately 15min in total. ... t. 25 s, gray) and suboptimal (t , 25 s, red) deci-sion-makers (middle).

This scheme is widely used for conceptualizing economic preferences in economics 108 textbooks, consumer choice (Simonson 1989; Tversky & Simonson 1993; Rieskamp et al. ... 580 middle, middle vs. high, and low vs. high comparisons, respectively.

to account for sphericity violations (Mauchly’s test p 0.05;Greenhouse and Geisser, 1959). ... Significant RT difference between conditions (two-sample t test). Ferrari-Toniolo, Bujold et al. •

Symmonds et al., 2010). Thus, among the different definitions of economic risk, variance constitutes. ... probability comparisons between adjacent relative-risk levels, c2-tests; N = 16,346 trials).

The dopamine signal increases nonlinearly with re-ward value and codes formal economic utility. ... We won’t give animals beer in the laboratory, but we can nicely test reward risk by going to economic theory.

Advanced economic behaviors often require sequences of choices organized by an internal plan. ... with positive regression slope, Equation 2, 72%; p=1.0 1019, binomial test).

Utility is the formal mathematical characterization of subjectivevalue and a prime decision variable in economic choice theory. ... gous to sensory ones. Second, rewards are salient and thuselicit attention, which are manifested as orienting

Multiple rewards 911 D. Economic decision mechanisms 912 1. Component processes of decisions 912 2. ... 10. Chosen object and action 925 11. Updating economic decision variables 926 12.

d) Multiple regression coefficients (β s.e.m., Online Methods equation (6), t-test). ... be important in reward-saving behavior, as suggested by psychological and economic theories1.