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OBJECTIVE	A growing body of studies consistently demonstrates that social responsiveness toward others is influenced by the neurohormone oxytocin .
OBJECTIVE	However , the potential role of oxytocin for self-perception remains relatively unexplored .
OBJECTIVE	Thus , we investigated whether oxytocin administration influences the self-attribution of positive and negative adjectives at the early , effortful stage of self-related information processing .
METHODS	Sixty healthy male participants received either 24I .
METHODS	U. oxytocin or a placebo in a randomized double-blind study before completing a sorting task , in which they were instructed to co-classify , as fast as possible , positive and negative adjectives into either self or non-self categories .
RESULTS	Oxytocin-treated participants reported stronger positive attitudes toward themselves compared to placebo .
CONCLUSIONS	The present findings demonstrate that oxytocin administration influences the early stage of self-related information processing and suggests that the oxytocinergic system might be involved in psychopathological conditions characterized by a negative representation of self .

