Healthy Clinical Trial
Official title:
Effects of Intranasal Oxytocin on Fear Processing in Naturalistic Contexts
The main aim of the study is to investigate the modulatory effects of intranasal oxytocin (24IU) on fear in naturalistic social and non-social contexts and the underlying neural mechanisms.
In a double-blind placebo-controlled between-subject experimental design, 60 adult male subjects will be randomly allocated to receive either intranasal oxytocin (24IU, n= 30) or placebo (n = 30) nasal spray. 45 minutes after treatment the participants will undergo a naturalistic fear induction paradigm during fMRI. During the paradigm video clips of 25s lengths will be presented showing fear-inducing situations in social and non-social contexts as well as corresponding control video clips. Following each clip subjects are required to rate their level of subjective fear on a rating scale ranging from 1 (no fear) to 9 (highest fear). Participants will undergo screening for psychopathological and emotional states before treatment. Together with a randomized assignment to the treatment groups, this will allow controlling for confounding between-group differences. ;
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