当地和全球环境对当地定位感知的影响
Jinfeng Huang1,2,3, Yifeng Zhou2,3, Tzvetomir Tzvetanov2,4,5,6
1Department of Psychology, Hebei Normal University, Shijiazhuang, China.
The European journal of neuroscience
|August 7, 2023
概括
视觉上下文影响着方向感知. 意想不到的是,附近的刺激效应显示出一个规律的模式,由空间结构在全球范围内调节,而不是复杂的相互作用,影响视觉处理.
科学领域:
- 神经科学是一个神经科学.
- 视觉感知 视觉感知 视觉感知
- 计算神经科学是一种神经科学.
背景情况:
- 视觉上下文显著影响了对当地定位的看法.
- 这些效应通常归因于早期视觉区域的刺激-抑制连接,如V1.1.
- 现有的模型预测了方向误解中的复杂相互作用和不对称性.
研究的目的:
- 研究视觉上下文对方向感知影响的计算结构.
- 通过分析Gabor刺激的方向误解来探测早期的视觉处理.
- 揭示空间定向处理中的潜在不对称性.
主要方法:
- 利用Gabor刺激来探测在一个广的空间定向空间的方向误解.
- 分析感知参数,包括偏见和歧视能力.
- 测量对不同刺激配置的响应时间.
主要成果:
- 发现了与预期相反的附近位置效应的正规的iso-orientation模式.
- 发现这些效应的参考点在全球范围内受到空间结构的调制.
- 没有观察到局部位置和方向之间的复杂相互作用.
- 证实了有偏见和歧视数据的发现;响应时间各不相同,这表明涉及多个视觉阶段.
结论:
- 这项研究揭示了视觉上下文效应的基础结构比以前假设的更简单,全球调制.
- 这些发现挑战了早期视觉皮层中激发-抑制相互作用的现有模型.
- 响应时间的变化表明多个相互作用的早期视觉处理阶段的参与.
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