Oxytocin receptor binding in the titi monkey hippocampal formation is associated with parental status and partner affiliation.

When analyses were repeated using Spearman rho correlation, four associations remained significant (see Table 2 ), including the associations between Proximity and OXTR binding in the total presubiculum (ρ = − 0.83, p = 0.01), Contact and OXTR binding in the total presubiculum (ρ = − 0.83, p = 0.01), Proximity and OXTR binding in PSB3 (ρ = − 0.88, p = 0.004), and Contact and OXTR binding density in PSB3 (ρ = − 0.88, p = 0.004); the associations between OXTR binding in PSB1 and Proximity and Contact were marginally significant ( p = 0.071; see Table 2 ).

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