Figure 2.

Behavioral preferences used to compute subjective value in the risky, delay, and social contexts. (A) Preferences in risk context. Monkeys significantly preferred a risky reward to a safe reward and had stronger preferences for higher levels of risk. (B) Preferences in delay context. Monkeys were significantly delay-averse, preferring smaller, immediate rewards to larger, delayed rewards, and had stronger preferences against longer delays. (C) Preferences in social valuation context. Monkeys preferred the standard juice reward to smaller rewards coupled with images, but were more likely to choose to view the image as juice volume was increased.