Scattolin Marina, Panasiti Maria Serena, Ho Jasmine T, Lenggenhager Bigna, Aglioti Salvatore Maria
Sapienza University of Rome and CLNS@Sapienza, Italian Institute of Technology, Rome (RM) 00161, Italy.
Santa Lucia Foundation, IRCCS, Rome (RM) 00179, Italy.
iScience. 2023 Aug 7;26(9):107551. doi: 10.1016/j.isci.2023.107551. eCollection 2023 Sep 15.
Although predicted by the notion of embodied morality, it remains unknown whether a reduced sense of body ownership (SoO) is associated with increased or decreased dishonesty. To clarify this issue, we tested patients with body integrity dysphoria (BID), a clinical condition characterized by chronic reductions of SoO toward one leg that patients persistently desire to have amputated. Participants with BID played a card game in which they could voluntarily tell the truth or cheat an opponent, and thus either steal or give them money. To assess whether SoO toward the effector limb influences (im)moral decisions, responses were communicated with the affected or the unaffected leg. We found that a higher number of self-gain lies was followed by further reductions of SoO toward the affected leg. Our result supports the idea that reductions of SoO may follow immoral behaviors to distance from unwanted characteristics of the self, like one's own dishonesty.
尽管身体化道德观念有所预测，但身体所有权感（SoO）降低与不诚实增加还是减少相关仍不明确。为厘清这一问题，我们对身体完整性认同障碍（BID）患者进行了测试，这是一种临床病症，其特征是患者对一条腿的SoO长期降低，且一直希望将其截肢。BID参与者玩一种纸牌游戏，在游戏中他们可以自愿说实话或欺骗对手，从而要么偷对手的钱，要么给对手钱。为评估对效应肢体的SoO是否会影响道德（不道德）决策，通过受影响或未受影响的腿来传达反应。我们发现，更多的自利谎言之后，对受影响腿的SoO会进一步降低。我们的结果支持这样一种观点，即SoO降低可能是为了与自身不想要的特征（比如自身的不诚实）保持距离，从而在不道德行为之后出现。
