The Minor "A" allele is associated with:
- The A allele, which is not common, was associated with risk for Autism, which suggests lower oxytocin or worse processing of it. (R).
- In romantic relationships, the AA version was associated with less empathic concern to their partner's distress, displayed lower social reciprocity in a support-giving interaction, and persisted less in attending to their partner's communication and maintaining focus on providing support.(R) This was based on observed behavior rather than self-reports.