视觉定向功能,视觉感知和功能视觉之间的关系在 (疑似) 大脑视觉障碍的儿童中
N Ben Itzhak1, L Stijnen2, E Ortibus1
1Department of Development and Regeneration, University of Leuven (KU Leuven), O&N IV Herestraat 49, Box 805, 3000 Leuven, Belgium; KU Leuven Child and Youth Institute (L-C&Y), Leuven, Belgium.
Research in developmental disabilities
|November 4, 2024
概括
大脑视力障碍 (CVI) 的视觉知觉 (VP) 障碍与视觉定向功能 (VOF) 和整体功能视力有关. 解决这些相互关联的缺陷是改善CVI儿童日常视觉能力的关键.
科学领域:
- 神经科学是一个神经科学.
- 眼科医生 眼科 眼科
- 发展心理学 发展心理学
背景情况:
- 大脑视觉障碍 (CVI) 包含在视觉感知 (VP) 中基于大脑的异质缺陷.
- 了解CVI中不同视觉功能之间的相互作用对于有效的干预至关重要.
研究的目的:
- 研究CVI儿童的功能视觉和视觉定向功能 (VOF) 和VP之间的关系.
- 量化描述基本功能,高级能力和日常生活视觉技能.
主要方法:
- 44名疑似CVI的儿童使用适应的虚拟玩具盒 (vTB) 范式进行评估,包括眼睛追踪视觉搜索任务 (VST) 和识别/记忆任务.
- 额外的评估包括VP测试,偏好看的眼睛跟踪 (PL-ET) 范式和佛兰德脑视力障碍问卷.
- 斯皮尔曼相关性被用来分析各种视觉功能之间的关系.
主要成果:
- 功能视力与VOF和VP显著相关.
- 在VST上的表现较差与PL-ET范式的结果较差有关 (例如,成功率,反应时间,固定持续时间).
- 更快的VST反应时间和更高的识别/记忆任务准确性与更好的对象识别,面部处理以及在混乱的环境和远距离下改善的视觉能力相关联.
结论:
- 在CVI中,VOF,VP和功能视力是相互关联的,一个领域的障碍会对其他领域产生负面影响.
- 对基本功能,高级认知能力和日常生活视觉技能进行定量分析对于全面的CVI评估和管理至关重要.
- 干预措施应考虑CVI视觉处理缺陷的整体性质.
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