EAPSI: Investigating Neural Coding of Spatiotemporal Events Using Visual Adaptation

我们如何感知世界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方块或倾斜的线条后，我们对颜色或方向的感知是有偏差的。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起着重要作用。这个奖项的研究旨在测试类似的适应和重整世界的时间结构。特别是，我们的目标是测试时间域的归一化，测试对事件的适应，随着时间的推移对视觉图像展开的适应，以及测量对人工刺激和自然事件视频的测量。这项研究将与新加坡南洋理工大学的Gerrit Maus博士合作进行，Gerrit Maus博士是时间和视觉编码方面的权威。该研究有望为视觉认知科学和视觉适应做出贡献。这项研究测试了对颜色和形状的适应模式是否也以类似的方式扩展到事件和时间。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。本研究将验证以下假设：如果空间特征的时间整合是基于偏离规范的感知编码（就像其他感知类别的情况一样），那么视觉适应将揭示自然事件的感知规范，为时空整合的感知提供重要的见解。该奖项由美国国家科学基金会和新加坡国家研究基金会共同资助，隶属于东亚和太平洋暑期研究所项目，支持美国研究生进行暑期研究。

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.