在探索自然场景时的视觉搜索模式是由脑视力障碍患者的突出性线索驱动的
Kerri Walter1, Claire E Manley2, Peter J Bex1
1Translational Vision Lab, Department of Psychology, Northeastern University, Boston, MA, USA.
Scientific reports
|February 6, 2024
概括
大脑视力障碍 (CVI) 患者表现出由图像突出性驱动的视觉搜索模式,而不是语义. 它们的搜索速度较慢,不太准确,表明了更高阶的处理缺陷.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 眼科医生 眼科 眼科
背景情况:
- 大脑视觉障碍 (CVI) 影响视觉处理和搜索效率.
- 了解视觉搜索中的图像突出性和语义的相互作用对于CVI研究至关重要.
研究的目的:
- 为了比较CVI和神经类型对照个体的视觉搜索性能.
- 调查图像突出与图像语义对自然主义场景中的视觉搜索的影响.
主要方法:
- 参与者使用图像或文本线索执行视觉搜索任务.
- 眼睛跟踪记录了目光的行为,包括成功率和反应时间.
- 接收器操作特征 (ROC) 分析评估了与突出性和语义模型相对应的凝视着陆.
主要成果:
- CVI参与者表现出较低的成功率和更长的反应时间.
- 在CVI中的视觉搜索涉及到更大的搜索区域和更多的固定.
- 在CVI中ROC得分较低,这表明与对照组相比,突出性和语义模型的影响较小.
结论:
- 在CVI中的视觉搜索主要是由图像突出性驱动的,这表明更高阶的处理缺陷.
- 线索类型并没有改变CVI中的搜索策略,但口头智商与文本线索搜索中的表现相关.
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