周围视觉中的持续时间感知:低估值随着刺激异常度的增加而增加.
Xinle Bao1, Zhengyin Gu1, Jinxing Yang1
1Department of Psychology, Zhejiang Sci-Tech University, Zhejiang, 310018, Hangzhou, China.
Attention, perception & psychophysics
|December 12, 2023
概括
周围视觉扭曲了持续时间的感知,因为视觉刺激远离视网膜中心,较长的持续时间被低估了. 这种低估效应随着离心率的增加而增加.
科学领域:
- 视觉感知 视觉感知 视觉感知
- 心理物理学的精神物理.
- 神经科学是一个神经科学.
背景情况:
- 持续时间感知对于日常视觉任务至关重要,但容易受到扭曲.
- 关于持续时间感知的研究主要集中在中央视觉上,边缘视觉的探索较少.
- 众所周知,偏心度是视网膜位置的度量,可以影响视觉处理.
研究的目的:
- 研究视网膜位置 (离心率) 如何影响周围视觉中的持续时间感知.
- 量化特异性对主观平等点 (PSE) 和韦伯分数 (WF) 的影响.
- 检查中央固定任务对外围视觉中持续时间感知的影响.
主要方法:
- 进行了两次心理物理实验,使用各种异常 (30°至70°) 的刺激.
- 实验1测量了时间感知 (PSE和WF),没有中央任务.
- 实验2评估了一个中心任务对50°偏心的持续时间感知的影响.
主要成果:
- 视网膜位置显著影响了主观平等点 (PSE),表明持续时间低估,随着异常增加.
- 维伯分数 (WF),表示灵敏度,在实验1中没有受到异常中心的显著影响.
- 实验2中的一个核心任务没有改变持续时间低估 (PSE),但影响了50°偏心的灵敏度 (WF).
结论:
- 离心率对外围视觉中的持续时间感知产生压缩作用,导致对主观持续时间的低估增加.
- 这种低估效应随着视网膜异常度的增加而扩大.
- 这些发现为外围视觉处理和低估持续时间的潜在生存优势提供了新的见解.
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