功能连接与视觉感知学习相互作用,以在慢性中风中恢复视野
Eun Namgung1, Yong-Hwan Kim2, Eun-Jae Lee3
1Asan Institute for Life Sciences, Asan Medical Center, Seoul, South Korea.
Scientific reports
|February 8, 2024
概括
较高的基线半球间视觉功能连接预测了中风患者视觉场缺陷的视觉感知学习有效性. 这个大脑生物标志物表明了显著视野缺陷恢复的潜力.
科学领域:
- 神经科学是一个神经科学.
- 康复医学 康复医学 康复医学
- 眼科医生 眼科 眼科
背景情况:
- 感知学习 (PL) 显示了与功能性大脑变化之间的相互关系,但神经相关性尚不清楚.
- 视觉感知学习 (VPL) 有助于慢性中风患者的视野缺陷 (VFD) 恢复.
- 了解神经机制对于优化基于VPL的康复至关重要.
研究的目的:
- 调查与VPL诱导的VFD恢复相关的视觉皮层的静止状态功能连接 (RSFC).
- 在慢性中风患者中确定VPL有效性的神经相关物.
- 评估RSFC作为VFD恢复的生物标志物的潜力.
主要方法:
- 患有VFD的慢性中风患者在2个月内接受了24次VPL会议 (定向和字母歧视).
- 在视野皮层的ipsilesional,interhemispheric和contralesional中的RSFC在基线和2个月后被评估.
- 在受影响视野中测量了VFD的平均总偏差 (MTD) 分数.
主要成果:
- 基线半球间视觉RSFC与训练后的MTD得分有很强的相关性.
- 一个具有高基线半球间视觉RSFC的小组表现出显著的VFD改善.
- 基线半球间视觉RSFC和VPL之间的相互作用影响了MTD得分和VFD恢复程度.
结论:
- 基线半球间视觉RSFC是一种有前途的生物标志物,用于预测VPL在VFD恢复中的有效性.
- 高的半球间连接可能表明VPL后视野改善的潜力更大.
- 这一发现有助于我们更好地理解VPL诱导的中风康复背后的神经机制.
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