EAPSI: Investigating Neural Coding of Spatiotemporal Events Using Visual Adaptation

EAPSI：使用视觉适应研究时空事件的神经编码

• 批准号: 1614427
• 负责人: Katherine Mussell
• 金额: $ 0.54万
• 依托单位: Mussell Katherine E
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-06-15 至 2017-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1614427&HistoricalAwards=false
• 关键词: EAPSI; Investigating; Neural; Coding; Spatiotemporal

How we perceive the world depends strongly on our recent experience. For example, after briefly looking at a red square or tilted lines, our perception of color or orientation is biased. These adaptation effects have been widely studied and are thought to play an important role in calibrating and optimizing visual coding. This award research aims to test for analogous adaptation and renormalization to the temporal structure of the world. In particular, the goal is to test for normalization in the temporal domain, testing for adaptation to events, to the unfolding of visual images over time, and measuring measure this for both artificial stimuli and for videos of naturalistic events. The research will be conducted in collaboration with Dr. Gerrit Maus of Nanyang Technological University in Singapore, is a leading authority on temporal and visual coding. The research is expected to contribute to the cognitive science of vision and visual adaptation.This study tests whether the patterns of adaptation found for color and form also extend in similar ways to events and time. The project will test how adaptation affects the norms for temporal information, and whether this points to common coding principles in the visual system. The research will test the following hypothesis: if temporal integration of spatial features is perceptually coded based on deviations from a norm (as is the case in other perceptual categories), then visual adaptation will reveal the perceptual norm for naturalistic events, giving important insight in the perception of spatiotemporal integration.This award under the East Asia and Pacific Summer Institutes program supports summer research by a U.S. graduate student and is jointly funded by NSF and the National Research Foundation of Singapore.

我们如何感知世界在很大程度上取决于我们最近的经历。例如，在短暂地看了一个红色的正方形或倾斜的线条后，我们对颜色或方向的感知是有偏见的。这些适应效应已被广泛研究，并被认为在校准和优化视觉编码中发挥重要作用。这项研究旨在测试对世界时间结构的类似适应和重新规范化。 特别是，我们的目标是测试在时间域中的标准化，测试适应事件，随着时间的推移展开的视觉图像，并测量测量这两个人工刺激和自然事件的视频。这项研究将与新加坡南洋理工大学的Gerrit Maus博士合作进行，他是时间和视觉编码的主要权威。这项研究有望为视觉和视觉适应的认知科学做出贡献。这项研究测试了颜色和形状的适应模式是否也以类似的方式延伸到事件和时间。该项目将测试适应如何影响时间信息的规范，以及这是否指向视觉系统中的共同编码原则。该研究将检验以下假设：如果空间特征的时间积分是基于与范数的偏差来感知编码的（就像在其他感知类别中的情况一样），那么视觉适应将揭示自然主义事件的感知规范，该奖项是东亚和太平洋夏季研究所计划下的一个奖项，旨在支持一个美国研究所的夏季研究。研究生，由NSF和新加坡国家研究基金会共同资助。