Visual perception and processing mechanisms

Afterimages drive a shared visual motion reversal illusion in Drosophila

The paper shows Drosophila exhibits a visual motion reversal illusion similar to mammals, attributing it to afterimages and specific neural pathways.

Dynamic context-based updating of object representations in visual cortex

The paper shows that visual cortex dynamically updates object representations using predictive contextual information from the surrounding scene, even when objects are occluded.

Non-synaptic Mechanism of Ocular Dominance Plasticity

This paper investigates a non-synaptic mechanism of ocular dominance plasticity in adult mice, showing that visual disruption alters spike time arrival and myelin morphology.

Higher-level spatial prediction in natural vision across mouse visual cortex

The paper uses deep generative modeling to show that mouse visual cortex responses are shaped by spatial predictability of natural image patches, with higher-level features driving prediction effects.

Distinct subcortical pathways mediate collision detection with and without attention and consciousness

This study identifies distinct subcortical pathways for collision detection with and without attention and consciousness using fMRI in healthy participants and hemianopic patients.

Predictive distractor processing relies on integrated proactive and reactive attentional mechanisms

This study uses MEG and decoding analysis to show that predictable distractors are proactively suppressed in the brain, with neural activity extending from pre- to post-search phases, indicating integrated attentional mechanisms.

Guessing reveals internal models of perceptual precision

This study shows that human guesses are systematically biased toward features with low perceptual precision, revealing strategic metacognitive knowledge of sensory limitations.

Direction-dependent bias in the perceived approach speed and its implications for robot motion design

The paper demonstrates a direction-dependent bias in perceived approach speed of objects and suggests its implications for robot motion design.

Size tuning of neural response variability in laminar circuits of macaque primary visual cortex

The paper examines how visual stimulus size modulates neural response variability and shared variability across layers of macaque primary visual cortex, finding layer-specific effects that challenge the idea that surround suppression always reduces variability.

Local cues enable classification of image patches as surfaces, object boundaries, or illumination changes

This study investigates how humans classify image edges as surfaces, object boundaries, or illumination changes using synthetic stimuli and finds that boundary sharpness, luminance modulation, and texture modulation interact to influence classification.

A Unified Mechanism for Depth Perception and Figure-Ground Organization

The paper proposes a unified mechanism for depth perception and figure-ground organization using biologically constrained models and hierarchical feedback pathways.

Mapping memory-guided saccade population receptive fields reveals principles of cortical organization along the human intraparietal sulcus

This study maps tuning width of saccade planning and execution in human intraparietal sulcus using forward-modelling fMRI, revealing topographic organization and hierarchy-specific specificity.

The anisotropic sensitivities of perceptual speed between expanding and contracting optic flows

This study compares perceptual sensitivity to speed in expanding and contracting optic flow, finding higher sensitivity for contraction at ecologically relevant speeds.

More is better: Improved visual discrimination through local feature diversity in naturalistic objects

The paper compares human discrimination performance between oriented gratings and natural object morphs, finding that morphs are discriminated faster and over a larger range due to local color and texture features.

A Quantitative Benchmark of Visual Information in Human Brain Recordings Across fMRI, MEG, and EEG

This paper benchmarks the information content of fMRI, MEG, and EEG in visual tasks using a unified decoding framework, finding fMRI has the highest accuracy, MEG intermediate, and EEG improved with group-level aggregation.

Analysis of the principles governing the dimensionality reduction performed by Lobula Plate Tangential Cells

This paper investigates how Lobula Plate Tangential Cells (LPTCs) perform dimensionality reduction of visual signals, showing they efficiently encode motion cues for navigation while allowing reconstruction of optical flow.

A geometric shape regularity effect in the human brain

This study investigates the neural mechanisms of geometric shape perception in humans using fMRI and MEG, finding distinct brain activation patterns and suggesting a symbolic mode of visual processing.

A Minimal Physiological Model of Perceptual Suppression and Breakthrough in Visual Rivalry

The paper extends a dynamical model of binocular rivalry to explain perceptual suppression in two experimental paradigms using competitive inhibition.

Anterior inferotemporal cortex represents decision formation and termination without ramps

The paper shows that TEa neurons encode decision variables as running averages without ramps during object-based decisions, contrasting with traditional models of evidence accumulation.

Revisiting object contextual cueing: A replication study on implicit learning

This study attempts to replicate Chun and Jiang's object contextual cueing effect but finds no significant difference between repeated and new configurations, suggesting the effect may not be robust or universal.

Convergence of Cortical and Thalamic Origins of Free Behavior Modulation of Mouse Primary Visual Cortex

The paper shows that mouse primary visual cortex integrates non-visual signals from top-down and stimulus-gated pathways during grating stimulation.

Global context rapidly shapes sensory responses in V1

The paper shows that global context rapidly modulates neural responses in V1, with global deviations eliciting enhanced responses and requiring feedback from ACa.

A view of bird's eyes -- Pigeons lock their eyes in place during flight

The paper uses a head-mounted eye-tracking system to show that pigeons maintain a consistent eye position in their head during flight.

Dynamics of efficient ensemble coding

The paper shows that efficient ensemble coding depends on the simultaneous presentation of reference and stimulus ensemble, with reduced coding and decision accuracy when they are presented asynchronously.

Dependence of Contextual Modulation in Macaque V1 on Interlaminar Signal Flow

The paper shows that in macaque V1, border ownership modulation depends on interlaminar signal flow, with stronger modulation when feedback/horizontal layers contribute more to input layers.

Neural coding of multiple motion speeds in visual cortical area MT

The paper investigates how neurons in the MT cortex represent multiple motion speeds, finding a faster-speed bias at slow speeds and proposing a modified divisive normalization model to explain this.

Mapping the visual cortex with Zebra noise and wavelets

The paper introduces Zebra noise and a wavelet-based model to efficiently map visual preferences of thousands of neurons in the mouse visual cortex.

Context-Dependent Motor Feedback Underlies Choice-Related signals in Visual Cortex

The paper identifies a motor-related choice signal in visual cortex that depends on the timing of target onset and shows it reflects feedback from motor areas.

A discontinuity in motion perception during fixational drift

The paper investigates motion perception during fixational drift and finds a sharp discontinuity where stimuli moving with retinal slip appear stable, while those moving with eye motion appear to move.

Controllable Point-Light Displays Implemented in a game engine for biological motion research

The paper introduces a method to create controllable 3D point-light displays using a game engine for biological motion research, showing it replicates known perceptual biases.