Monkeys: 1st Non-Humans to Believe in Winning and Losing Streaks

A new research suggests monkeys take a lot of interest in gambling. Moreover, they are the first non-humans to believe in winning and losing streaks.

Researchers wanted to know whether or not monkeys believe in winning streak. Therefore, they created a computerized game alluring enough to entice monkeys to play for hours. Lead author Tommy Blanchard from the University of Rochester said they found monkeys love to gamble.

In next step, researchers developed a fast-pace task. The task demanded from each monkey to choose between right and left and win a gift if they have guessed right. In total, three types of games were created.

Two of the three were of clear patterns meaning the correct answer tends to repeat on one side or to alternate from side to side. The last one was random. In the first two games, the three rhesus monkeys were able to guess the correct sequence.

In the last pattern, the monkeys continued to choose as if they expected a `streak', thereby meaning that even if rewards were random, the monkeys continued to favor one side. The experiment continued for weeks and the monkeys showed the hot-hand bias.

"They had lots and lots of opportunities to get over this bias, to learn and change, and yet they continued to show the same tendency", stated Blanchard. Researchers think the distribution of food in the wild does not depend on randomness and that might be the reason behind the belief of streak.

Researchers concluded that both the species seem to have trouble in accepting the reality of randomness as they have the same hot hand bias. The belief could have been inherited, think researchers.


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