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Human visual perception is a complex, dynamic and fluctuating process. In addition to the incoming visual stimulus, it is affected by many other factors including temporal context, both external and internal to the observer. In this study…

神经元与认知 · 定量生物学 2020-07-01 Urit Gordon , Shimon Marom , Naama Brenner

We consider a differential model describing neuro-physiological contrast perception phenomena induced by surrounding orientations. The mathematical formulation relies on a cortical-inspired modelling [10] largely used over the last years to…

计算机视觉与模式识别 · 计算机科学 2018-12-19 Marcelo Bertalmío , Luca Calatroni , Valentina Franceschi , Benedetta Franceschiello , Dario Prandi

Temporal resolution of visual information processing is thought to be an important factor in predator-prey interactions, shaped in the course of evolution by animals' ecology. Here I show that light can be considered to have a dual role of…

神经元与认知 · 定量生物学 2019-10-25 Bartosz Jura

We consider the evolution model proposed in [9, 6] to describe illusory contrast perception phenomena induced by surrounding orientations. Firstly, we highlight its analogies and differences with the widely used Wilson-Cowan equations [48],…

计算机视觉与模式识别 · 计算机科学 2020-07-20 Marcelo Bertalmío , Luca Calatroni , Valentina Franceschi , Benedetta Franceschiello , Dario Prandi

We consider light-induced binding and motion of dielectric microparticles in an optical waveguide that gives rise to a back-action effect such as light transmission oscillating with time. Modeling the particles by dielectric slabs allows us…

光学 · 物理学 2017-03-07 Almas F. Sadreev , E. Ya. Sherman

Most neurons in peripheral sensory pathways initially respond vigorously when a preferred stimulus is presented, but adapt as stimulation continues. It is unclear how this phenomenon affects stimulus representation in the later stages of…

神经元与认知 · 定量生物学 2012-10-29 Farzad Farkhooi , Anja Froese , Eilif Muller , Randolf Menzel , Martin P. Nawrot

The time-changing nature of our world demands processing of huge amounts of information in fast and reliable way to generate successful behaviors. Therefore, significant brain resources are devoted to process spatiotemporal information.…

According to the dominant view, time in perceptual decision making is used for integrating new sensory evidence. Based on a probabilistic framework, we investigated the alternative hypothesis that time is used for gradually refining an…

神经元与认知 · 定量生物学 2015-02-12 Máté Lengyel , Ádám Koblinger , Marjena Popović , József Fiser

Photophoretic force due to the optically-induced thermal effect provides an effective way to manipulate the light-absorbing particles suspended in ambient gases. However, how this force temporally responds to the intensity modulation of the…

光学 · 物理学 2019-03-01 Gui-hua Chen , Lin He , Mu-ying Wu , Yong-qing Li

Visual recognition takes a small fraction of a second and relies on the cascade of signals along the ventral visual stream. Given the rapid path through multiple processing steps between photoreceptors and higher visual areas, information…

神经元与认知 · 定量生物学 2014-04-28 Jedediah M. Singer , Joseph R. Madsen , William S. Anderson , Gabriel Kreiman

The time-dependence of the Bragg diffraction by one-dimensional photonic crystals and its influence on the short pulse reflection are studied in the framework of the coupled- wave theory. The indicial response of the photonic crystal is…

光学 · 物理学 2015-09-02 Jean-michel André , Philippe Jonnard

There is a consensus that human and non-human subjects experience temporal distortions in many stages of their perceptual and decision-making systems. Similarly, intertemporal choice research has shown that decision-makers undervalue future…

神经元与认知 · 定量生物学 2016-05-31 Pedro A. Ortega , Naftali Tishby

Tasks that require information about the world imply a trade-off between the time spent on observation and the variance of the response. In particular, fast decisions need to rely on uncertain information. However, standard estimates of…

神经元与认知 · 定量生物学 2023-07-18 Sahel Azizpour , Viola Priesemann , Johannes Zierenberg , Anna Levina

The dependence of the diffusion MRI signal on the diffusion time $t$ is a hallmark of tissue microstructure at the scale of the diffusion length. Here we measure the time-dependence of the mean diffusivity $D(t)$ and mean kurtosis $K(t)$ in…

医学物理 · 物理学 2020-08-06 Hong-Hsi Lee , Antonios Papaioannou , Dmitry S. Novikov , Els Fieremans

Interactions in nature can be described by their coupling strength, direction of coupling and coupling function. The coupling strength and directionality are relatively well understood and studied, at least for two interacting systems,…

适应与自组织系统 · 物理学 2017-02-09 Tomislav Stankovski

The time-dependent Bragg diffraction by multilayer gratings working by reflection or by transmission is investigated. The study is performed by generalizing the time-dependent coupled-wave theory previously developed for one-dimensional…

其他凝聚态物理 · 物理学 2015-11-26 Jean-Michel André , Philippe Jonnard

In a recent paper on Cortical Dynamics, Francis and Grossberg raise the question how visual forms and motion information are integrated to generate a coherent percept of moving forms? In their investigation of illusory contours (which are,…

神经元与认知 · 定量生物学 2007-05-23 R. Englman , A. Yahalom

The time-dependence of multi-point observable correlation functions are essential quantities in analysis and simulation of quantum dynamics. Open quantum systems approaches utilize two-point correlations to describe the influence of an…

量子物理 · 物理学 2025-10-27 Yoana R. Chorbadzhiyska , Peter A. Ivanov , Charlie Nation

Brains adapt to the statistical structure of their input. In the visual system, local light intensities change rapidly, the variance of the intensity changes more slowly, and the dynamic range of contrast itself changes more slowly still.…

神经元与认知 · 定量生物学 2025-09-03 Charles J. Edelson , Sima Setayeshgar , William Bialek , Rob R. de Ruyter van Steveninck

Indoor lighting affects cognition, affect, and behavioural regulation, but these effects are often treated as isolated findings rather than as parts of a unified process. This paper proposes an active inference account of shared indoor…

定量方法 · 定量生物学 2026-05-05 Luca M. Possati
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