Vermeiren, R.R.J.M.

oxytocin infant activation amygdala brain response effect control study insula signi placebo group region amygdala activation participant fi ndings empathy perception contrast signi ficant activation analysis psychiatry analyses administration women child fmri data acquisition ficant cycle placebo group image level 900 hz behavior thalamu nding right human mother 700 hz 500 hz brain activation z ͼ 2.3 parent placebo condition signi ficantly responsiveness stimuli cluster neurosci condition leiden university right amygdala sibling heinrichs m heinrich psychol emotion change oxytocin administration university caregiving stress p ͻ .05. right amygdala activation sound leiden signal threshold drug administration ͼcontrol anxiety adult contraceptive ficantly brain analysis oxytocin levels figure acquisition