Stress enhances model-free reinforcement learning only after negative outcome

• Heyeon Park,

  Current address: Department of Public Health Medical Services, Seoul National University Bundang Hospital, Seongnam, Korea

  Affiliation Department of Psychology, Seoul National University, Seoul, Korea

  http://orcid.org/0000-0003-4971-9756

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• Daeyeol Lee,

  Affiliations Department of Neuroscience, Department of Psychiatry, Yale School of Medicine, New Haven, United States of America, Department of Psychology, Yale University, New Haven, United States of America

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• Jeanyung Chey

  * E-mail: jychey@snu.ac.kr

  Affiliation Department of Psychology, Seoul National University, Seoul, Korea

  http://orcid.org/0000-0001-5371-7783

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