Making the paper: Arnon Lotem.

The article presents information on the paper shown to Arnon Lotem, a professor of zoology at Tel-Aviv University in Israel, and his colleague Ido Erev concerning the pay-off odds of choosing two alternatives described verbally to humans and rats. The paper reported on the certainty effect, whereby rats repeatedly faced with the option of receiving either a bigger or lesser reward with certainty preferred the safer option. Moreover, Lotem and his colleagues discovered that both humans and other animals can exhibit certainty or reverse certainty.