Psychiatry Research
Volume 157, Issue 1 , Pages 77-85 , 15 January 2008

Is a neutral face really evaluated as being emotionally neutral?

  • Eun Lee

      Affiliations

    • Department of Psychiatry, Ilsan Hospital, National Health Insurance Corporation, Gyeonggi-do, South Korea
    • ,
  • Jee In Kang

      Affiliations

    • Department of Psychiatry, Yonsei University College of Medicine, Seoul, South Korea
    • ,
  • Il Ho Park

      Affiliations

    • Department of Psychiatry, Yonsei University College of Medicine, Seoul, South Korea
    • Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea
    • ,
  • Jae-Jin Kim

      Affiliations

    • Department of Psychiatry, Yonsei University College of Medicine, Seoul, South Korea
    • Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea
    • ,
  • Suk Kyoon An

      Affiliations

    • Department of Psychiatry, Yonsei University College of Medicine, Seoul, South Korea
    • Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea
    • Corresponding Author InformationCorresponding author. Department of Psychiatry, Severance Mental Health Hospital, Yonsei University College of Medicine, 696–6 Tanbul-dong, Gwangju-si, Gyeonggi-do, 464–100, South Korea. Tel.: +82 31 760 9404; fax: +82 31 761 7582.

Received 29 November 2005 ,Revised 26 September 2006 ,Accepted 3 February 2007.

  • Image Result

    Effect sizes of the emotional task (EAST) according to the intrinsic valence of facial stimuli. The effect size was calculated as the difference of the mean error rates on the negative response trials

    Effect sizes of the emotional task (EAST) according to the intrinsic valence of facial stimuli. The effect size was calculated as the difference of the mean error rates on the negative response trials from the positive response trials divided by the pooled standard deviation. A positive EAST effect size thus signifies that the target stimuli are being evaluated as positive emotions. ⁎Wilcoxon signed rank test on the percentage of error showed a significant difference between extrinsic positive and negative valences within each stimulus.

PII: S0165-1781(07)00035-2

doi: 10.1016/j.psychres.2007.02.005

Psychiatry Research
Volume 157, Issue 1 , Pages 77-85 , 15 January 2008

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