Riem, M.M.E.

oxytocin infant activation study response brain amygdala effect participant control processing psychiatry insula empathy signi fi ndings placebo level group region amygdala activation human dif ficulty hearing genotype receptor university child perception contrast behavior signi ficant activation nding result auditory analysis hearing leiden university neurosci leiden analyses administration women adult fmri data acquisition bakermans-kranenburg ficant cycle placebo group image emotion van ijzendoorn 900 hz ficulty thalamu right mother 700 hz auditory processing 500 hz sample brain activation z ͼ 2.3 parent placebo condition signi ficantly oxytocin receptor gene responsiveness stimuli cluster ijzendoorn condition right amygdala sibling heinrichs m heinrich psychol change score oxytocin administration caregiving