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Materials with unusual optical properties are central to advanced control of light. Yet, in nature, such materials may be exceedingly rare and often difficult to obtain. To overcome this limitation, here we introduce the concept of temporal…

光学 · 物理学 2026-05-19 Grigorii Ptitcyn , Diego M. Solís , M. S. Mirmoosa , Nader Engheta

We apply the Lagrangian perturbation theory with time-dependent growth functions at second and third order of perturbation with the aim to model the effect of dynamical dark energy on redshift-space distortions. Our fiducial galaxy redshift…

宇宙学与河外天体物理 · 物理学 2018-11-14 Chakkrit Kaeonikhom , Teeraparb Chantavat

Understanding the neural mechanism underlying subjective representation has become a central endeavor in cognitive-neuroscience. In theories of conscious perception, stimulus gaining conscious access is usually considered as a discrete…

神经元与认知 · 定量生物学 2018-03-28 Moti Salti , Asaf Harel , Sebastien Marti

We introduce an operator-theoretic framework for analyzing directional dependence in multivariate time series based on order-constrained spectral non-invariance. Directional influence is defined as the sensitivity of second-order dependence…

应用统计 · 统计学 2026-04-10 Alejandro Rodriguez Dominguez

Recent progress in neuroscience to image and investigate brain function has been made possible by impressive developments in optogenetic and opto-molecular tools. Such research requires advances in optical techniques for the delivery of…

In this work we have aimed to reproduce supra-threshold perception phenomena, specifically visual illusions, with Wilson-Cowan-type models of neuronal dynamics. We have found that it is indeed possible to do so, but that the ability to…

Time perception is crucial for a coherent human experience. As life progresses, our perception of the passage of time becomes increasingly non-uniform, often feeling as though it accelerates with age. While various causes for this…

神经元与认知 · 定量生物学 2024-11-11 Enric Espel Sanchez

Illusions are fascinating and immediately catch people's attention and interest, but they are also valuable in terms of giving us insights into human cognition and perception. A good theory of human perception should be able to explain the…

计算机视觉与模式识别 · 计算机科学 2019-02-11 Nasim Nematzadeh , David M. W. Powers , Trent Lewis

The Reward Prediction Error hypothesis proposes that phasic activity in the midbrain dopaminergic system reflects prediction errors needed for learning in reinforcement learning. Besides the well-documented association between dopamine and…

神经元与认知 · 定量生物学 2022-07-26 William H. Alexander , Samuel J. Gershman

While deep learning surpasses human-level performance in narrow and specific vision tasks, it is fragile and over-confident in classification. For example, minor transformations in perspective, illumination, or object deformation in the…

计算机视觉与模式识别 · 计算机科学 2022-03-15 Maryam Daniali , Edward Kim

Temporally causal representation learning aims to identify the latent causal process from time series observations, but most methods require the assumption that the latent causal processes do not have instantaneous relations. Although some…

机器学习 · 计算机科学 2026-01-21 Zijian Li , Yifan Shen , Kaitao Zheng , Ruichu Cai , Xiangchen Song , Mingming Gong , Guangyi Chen , Kun Zhang

Sensory neuroscience seeks to understand how the brain encodes natural environments. However, neural coding has largely been studied using simplified stimuli. In order to assess whether the brain's coding strategy depend on the stimulus…

When dealing with highly accurate modeling of time and frequency transfers into arbitrarily moving dielectrics medium, it may be convenient to work with Gordon's optical spacetime metric rather than the usual physical spacetime metric.…

广义相对论与量子宇宙学 · 物理学 2020-03-25 Adrien Bourgoin

Clinical time-series learning is routinely constrained by small, heterogeneous cohorts and protocol drift, while its downstream use spans both classification (e.g., pathology diagnosis) and regression (e.g., temporal forecasting). These…

机器学习 · 计算机科学 2026-05-29 Sharmita Dey , Diego Paez-Granados

The incorporation of structured light techniques into vision science has enabled more selective probes of polarization related entoptic phenomena. Diverse sets of stimuli have become accessible in which the spatially dependant optical…

We tested whether and how biases in visual perception might influence motor actions. To do so, we designed an interception task in which subjects had to indicate the time when a moving object, whose trajectory was occluded, would reach a…

神经元与认知 · 定量生物学 2014-03-11 Alexander Tank , Alan A. Stocker

Animals and humans make decisions based on their expected outcomes. Since relevant outcomes are often delayed, perceiving delays and choosing between earlier versus later rewards (intertemporal decision-making) is an essential component of…

神经元与认知 · 定量生物学 2014-02-21 Vijay Mohan K Namboodiri , Stefan Mihalas , Tanya Marton , Marshall G Hussain Shuler

We aim to ask and answer an essential question "how quickly do we react after observing a displayed visual target?" To this end, we present psychophysical studies that characterize the remarkable disconnect between human saccadic behaviors…

人机交互 · 计算机科学 2022-05-06 Budmonde Duinkharjav , Praneeth Chakravarthula , Rachel Brown , Anjul Patney , Qi Sun

In the domain of face recognition, there exists a puzzling timing discrepancy between results from macaque neurophysiology on the one hand and human electrophysiology on the other. Single unit recordings in macaques have demonstrated face…

神经元与认知 · 定量生物学 2022-08-02 Evan Ehrenberg , Kleovoulos Leo Tsourides , Hossein Nejati , Ngai-Man Cheung , Pawan Sinha

When an excited electromagnetically open optical waveguide goes through a temporal transition of its material properties, it radiates to the ambient surroundings. In this letter, we explore this radiation and reveal, using asymptotic…

光学 · 物理学 2024-09-19 Amir Shlivinski , Yakir Hadad