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. Author manuscript; available in PMC: 2009 Jan 1.
Published in final edited form as: Anim Behav. 2008 Jan;75(1):245–257. doi: 10.1016/j.anbehav.2007.04.032

Figure 3.

Figure 3

Percentage of trials solved and percentage of rewards received in experiment 2, Reciprocal Reward. X-axis represents session. The line indicates the percentage of trials solved. Black bars indicate the percentage of rewards received by the female, white bars represent the percentage of rewards received by the male (percentages calculated out of total number of rewards possible each session regardless of whether the trial was solved). Pair 2 is the only pair in which one partner received significantly more rewards than the other (P = 0.010). Sessions in which both the male and the female received rewards indicate sessions in which the tamarins solved at least one trial on their non-preferred sides.