Intellectual Developmental Disorder (IDD) is a neurodevelopmental disorder involving impairment of general cognitive abilities. This disorder impacts the conceptual, social, and practical skills adversely. There is a growing interest in exploring the neurological behavior associated with these disorders. Assessment of functional brain connectivity and graph theory measures have emerged as powerful tools to aid these research goals. The current research contributes by comparing brain connectivity patterns of IDD individuals to those typical controls. Considering the intellectual deficits linked to the IDD population, we hypothesized an atypical connectivity pattern in the IDD group. Brain signals were recorded by a dry-electrode Electroencephalography (EEG) system during the rest and music states observed by the subjects. We studied a group of seven IDD subjects and seven healthy controls to understand the connectivity within the human brain during the resting-state vis-à-vis while listening to music. Findings of this research emphasize (1) hyper-connected functional brain networks and increased modularity as potential characteristics of the IDD group, (2) the ability of soothing music to reduce the resting state hyper-connected pattern in the IDD group, and (3) the effect of soothing music in the lower frequency bands of the control group compared to the higher frequency bands of the IDD group.

中文翻译：

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音乐知觉过程中智力发育障碍的功能性大脑连接性分析

智力发育障碍（IDD）是一种神经发育障碍，涉及一般认知能力的损害。这种障碍会严重影响概念，社交和实践技能。探索与这些疾病相关的神经行为的兴趣日益浓厚。功能性大脑连通性的评估和图论方法已成为帮助实现这些研究目标的强大工具。当前的研究通过将IDD个体的大脑连接模式与那些典型对照进行比较来做出贡献。考虑到与IDD人群有关的智力缺陷，我们假设IDD群体的连接方式非典型。休息期间，干电极脑电图（EEG）系统记录大脑信号，受试者观察音乐状态。我们研究了一组七个IDD受试者和七个健康对照组，以了解在听音乐时相对于静止状态下人脑内部的连通性。这项研究的结果强调（1）超连接的功能性大脑网络和增加的模块化作为IDD组的潜在特征；（2）舒缓音乐以减少IDD组的静止状态超连接模式的能力；以及（3 ）与IDD组的较高频段相比，对照组的较低频段中的音乐舒缓效果。