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. Author manuscript; available in PMC: 2021 Nov 1.
Published in final edited form as: Psychoneuroendocrinology. 2020 Aug 2;121:104803. doi: 10.1016/j.psyneuen.2020.104803

Figure 4:

Figure 4:

A. Cooperative responses vs pellets earned for rats playing iterated Prisoner’s Dilemma (IPD) or Stag Hunt (SH) with a Stooge who follows a random response strategy (IPD-Random, closed symbols), Win-stay/Lose-shift (IPD-WSLS, gray symbols), or Tit-for-tat (IPD-TFT, open symbols; SH-TFT, striped symbols). See Figure 1 for experimental details. Rats were pre-treated i.p. with saline (circles) or 0.1 mg/kg oxytocin (OT, triangles). B. Cooperative responses in 24 trials/day (mean±SEM) after pre-treatment with saline (left bars) or OT (right bars). C. Cooperative responses on the first trial each day (Nice). Asterisks indicate significant effect of OT.