在年幼的自闭症和神经类型儿童中,听觉反应的习惯化
Patrick Dwyer1,2,3, Zachary J Williams4,5,6,7,8, Svjetlana Vukusic2,9
1Department of Psychology, UC Davis, Davis, California, USA.
概括
自闭症儿童的听觉习惯性减少,这意味着他们的大脑对声音的反应并没有像预期的那样随着时间的推移而减少. 在幼儿中观察到这种感官处理的差异,但可能不能完全解释自闭症患者的声音不耐受.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 自闭症研究 自闭症研究
背景情况:
- 在自闭症中,感官反应的习惯性往往减少,可能导致对刺激的反应加剧.
- 之前关于自闭症习惯性的研究已经使用了各种方法,其中一些显示了与相同刺激的群体差异,而另一些则显示了间歇性刺激.
研究的目的:
- 调查自闭症和典型发育儿童对听觉复杂音的电生理反应的习惯性.
- 为了比较诊断组之间的习惯模式,在不同的声音强度和刺激呈现类型之间.
主要方法:
- 在127名自闭症儿童和79名典型发育儿童 (2-5岁) 中记录了对听觉复杂音调 (50-80 dB SPL) 的电生理反应 (听觉N2和P1).
- 习惯性是通过随着时间变化的单试响应幅度在被动的,交错的音调呈现的变化来衡量.
- 评估认知能力和护理人员报告的声音耐受性,以探索与习惯性的相关性.
主要成果:
- 与对照组相比,自闭症儿童对听觉N2反应的习惯性显著减少.
- 诊断组之间对P1反应的习惯性没有显著差异.
- 观察到特定的依赖强度的习惯模式:P1对大声声音的习惯性较低,而N2对柔和声音的习惯性较低.
结论:
- 自闭症儿童的听觉N2习惯性降低支持了自闭症患者感官习惯性降低的先前发现.
- 在这个范式中观察到的习惯差异可能不是自闭症个体现实世界声音不耐受的主要原因.
- 这些发现突显了自闭症感官处理差异的复杂性,特定的神经反应显示了改变的习惯模式.
相关概念视频
Neuroplasticity
444
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
444
Autism Spectrum Disorder
121
Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
121


