The Major "T" allele is associated with:
- Decreased levels of oxytocin in the brain (TT) (R).
- Increased risk of depressive moods (TT) (R).
- Increased risk of Autism (TT) (R).
- Decrease in empathy toward a partner in a romantic relationship (TT) (R).
- Less social behavior (TT) (R)
- Less generosity and kindness (TT) (R)
- CT in females exhibits the most empathy (R).