在发育性阅读障碍症中通过隐性序列学习探索大脑可塑性
Gaia Olivo1,2, Jonas Persson3,4, Martina Hedenius5,6
1University of Gothenburg, Department of Psychology, Haraldsgatan 1, 405 03, Göteborg, Sweden. gaia.olivo@psy.gu.se.
NPJ science of learning
|May 27, 2024
概括
患有发育性阅读障碍 (DD) 的儿童在隐性序列学习 (ISL) 过程中表现出不同的大脑可塑性,与典型发育的同龄人相比. 这表明DD中存在着不同的学习机制,特别是在小脑和胸膜区域.
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
- 认知科学 认知科学
背景情况:
- 发育性阅读障碍 (DD) 的特点是尽管智力正常,但阅读困难.
- 隐性序列学习 (ISL) 的缺陷经常在DDD患者中观察到.
- 了解DD中大脑可塑性对于开发有针对性的干预措施至关重要.
研究的目的:
- 研究DD儿童与典型发育 (TD) 儿童之间的大脑可塑性差异.
- 在串行反应时间 (SRT) 任务训练后,检查灰质体积 (GMV) 和白质体积 (WMV) 的变化.
- 探索大脑结构变化与DD和TD组ISL表现之间的关系.
主要方法:
- 17名DD儿童和18名TD儿童参加了两个24小时的SRT任务培训课程.
- 结果措施包括特定序列的ISL和一般视觉运动技能学习 (GSL).
- 基于voxel的形态测量被用来分析GMV和WMV的变化.
主要成果:
- 在两组中,小脑GMV从第1天到第2天增加,WMV从第1天到第2天减少.
- 观察到,左前中心回形中WMV与ISL性能变化之间的相关性存在群体差异.
- 与TD儿童相比,DD儿童在后部乳头辐射中表现出更大的WMV.
结论:
- 大脑小脑区域的可塑性在SRT训练后的DD和TD儿童中发生类似的情况.
- 在DD和TD儿童中,不同的神经机制可能是ISL的基础,正如前中心环WMV相关性所表明的那样.
- 在DD中后部体辐射中的非典型WMV需要进一步调查,并支持之前的发现.
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