Figure 2. A: Prefrontal regions where significant increases in oxy-Hb concentration were observed in the ten subjects who chose defection in the PD game and cooperation in the PDAS game (p < .05, corrected). a: The right dorsolateral prefrontal cortex and left orbitofrontal cortex showed significant increases in oxy-Hb concentration during the PD game. b: There was no similar increase in the PDAS game. B: Prefrontal regions of the group analysis in the two subjects who chose cooperation in both the PD and PDAS games (p < .05, corrected). There was no significant increase in blood flow in either game. Color bars indicated the threshold of T- statistics

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Using Economic Games to Investigate the Neural Substrates of Cognitive Processes

Masao Nagatsuka, Hideo Shinagawa, Yoshiyaka Okano, Yuri Kitamura, Tatsuyoshi Saijo

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