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. 2021 Feb;71(2):252-261.
doi: 10.1007/s12031-020-01644-2. Epub 2020 Jun 30.

Influence of Two Single-Nucleotide Polymorphisms of the Oxytocin Receptor Gene (OXTR) on Empathy: the Mediation Role of a Primary Emotion, CARE

Jin Liu  1 , Siyuan Shang  2   3 , Meng Pei  1 , Yanjie Su  4
Affiliations

Influence of Two Single-Nucleotide Polymorphisms of the Oxytocin Receptor Gene (OXTR) on Empathy: the Mediation Role of a Primary Emotion, CARE

Jin Liu et al. J Mol Neurosci. 2021 Feb.

Abstract

To feel other's pain would elicit empathy. Some theorists hypothesized that observing other's pain may activate the primary emotion of maternal care instinct, which may function as a precursor of empathy. The maternal care instinct and empathy share the same genetic background and neuroendocrine underpinnings. An extensive body of research has shown that maternal behaviors relate to the oxytocinergic system, which has a strong influence on empathy. These studies suggest that the maternal care instinct may mediate the effect of oxytocin receptor gene (OXTR) on empathy. To provide evidence for this mediation, we used the subscale of CARE in Affective Neuroscience Personality Scales (ANPS) to measure the maternal care instinct and tested two OXTR single-nucleotide polymorphisms (SNPs), rs53576 and rs13316193, in 880 high school participants (588 females, 292 males; Mage = 16.51 years old, SD = 0.65). Results showed that the genotype of rs13316193 was indirectly associated with empathy via CARE, suggesting a mediating role of CARE in the pathway from OXTR to empathy. These findings may contribute to an understanding of how empathy emerges when one witnesses another person in pain.

Keywords: CARE; Empathy; Mediation; Oxytocin receptor gene (OXTR); Primary emotions.

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