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Intranasal Oxytocin Enhances Connectivity in the Neural Circuitry Supporting Social Motivation and Social Perception in Children with Autism

机译:鼻内催产素增强神经回路的连通性支持孤独症儿童的社会动机和社会知觉

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摘要

Oxytocin (OT) has become a focus in investigations of autism spectrum disorder (ASD). The social deficits that characterize ASD may relate to reduced connectivity between brain sites on the mesolimbic reward pathway (nucleus accumbens; amygdala) that receive OT projections and contribute to social motivation, and cortical sites involved in social perception. Using functional magnetic resonance imaging and a randomized, double blind, placebo-controlled crossover design, we show that OT administration in ASD increases activity in brain regions important for perceiving social-emotional information. Further, OT enhances connectivity between nodes of the brain’s reward and socioemotional processing systems, and does so preferentially for social (versus nonsocial) stimuli. This effect is observed both while viewing coherent versus scrambled biological motion, and while listening to happy versus angry voices. Our findings suggest a mechanism by which intranasal OT may bolster social motivation—one that could, in future, be harnessed to augment behavioral treatments for ASD.
机译:催产素(OT)已成为自闭症谱系障碍(ASD)研究的重点。表征ASD的社会缺陷可能与接受OT预测并有助于社会动机的中脑边缘奖励途径(伏隔核;杏仁核)上的大脑部位以及参与社会知觉的皮质部位之间的连通性降低有关。使用功能磁共振成像和随机,双盲,安慰剂控制的交叉设计,我们表明在ASD中进行OT管理可以增加大脑区域中对于感知社会情感信息重要的活动。此外,OT增强了大脑奖赏节点与社会情感处理系统之间的连通性,并且优先于社交(而非非社交)刺激。在观察连贯的生物运动与混乱的生物运动时,以及在听高兴的声音与愤怒的声音时,都可以观察到这种效果。我们的发现表明,鼻内OT可以通过这种机制来增强社会动机-将来可以利用这种机制来增强对ASD的行为治疗。

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