Original Articles

• The Association Between the Level of General Trust and the Judgment Accuracy of Group Members’ Cooperation in a Social Dilemma

  Hirofumi Hashimoto, Kaede Maeda, Sayaka Tomida, Shigehito Tanida

  27-30

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• Investigation Into Open-Ended Fitness Landscape Through Evolutionary Logical Circuits

  Masaki Suyama, Kosuke Sato

  31-36

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• Prosocial Repertoire Mediates the Effects of Gratitude on Prosocial Behavior

  Ryuji Oguni, Keiko Otake

  37-40

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• Cultural Differences in Emoticon Perception: Japanese See the Eyes and Dutch the Mouth of Emoticons

  Hisako W. Yamamoto, Misako Kawahara, Mariska E. Kret, Akihiro Tanaka

  40-45

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