By Alan Mozes HealthDay Reporter
TUESDAY, July 29, 2014 (HealthDay News) -- Treating certain adult autism patients with just a single dose of the hormone oxytocin quickly improved their ability to judge facial expressions and emotions, Japanese researchers report.
Known as the "love hormone," oxytocin has been shown to play a role in emotional bonding between lovers, and between mothers and their children.
In this study, it boosted underperforming neural activity in a key area of the brain that has long been associated with the processing of both empathy and emotion recognition.
The finding has only been observed among male autism patients who are relatively "high-functioning," meaning that they possess verbal communication skills that exceed those of people with more severe autism.
Yet, study co-author Hidenori Yamasue suggested that even "low-functioning" autism patients might ultimately derive some benefit from oxytocin treatment, because the effect of the hormone is on the ability to interpret nonverbal facial expressions, rather than dialogue.
"Therefore, autistic people with deficits in nonverbal communication and interaction [might] benefit from oxytocin administration," he noted.
Yamasue, from the department of neuropsychiatry in the Graduate School of Medicine at the University of Tokyo, and his team report the findings online July 29 in the journal Molecular Psychiatry.
Autism involves a range of neurodevelopmental disorders marked by repetitive behaviors and problems with social interaction and communication.
Previous research has indicated that oxytocin might be of use as an autism therapy. One Yale University Child Study Center report, published late last year, suggested the hormone actually enhanced brain function among children with autism.
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'Love Hormone' Oxytocin May Help Some With Autism