Topic: visual adaptation

A major problem in identifying consistent neural markers underlying perceptual decision-making is that decisions are mostly inextricably linked to task-related confounds such as motor responses. By disentangling the choice content from choice direction and the physical response, we showed in prior studies that vibrotactile decision content is nevertheless most likely represented effector-specific (i.e. in brain areas associated to the required motor response). In the current study we used a visual adaptation of the delayed match-to-comparison task to test whether perceptual decisions would be

How does the visual system adapt when the amount of light in the scene changes, such as when an animal leaves a shaded area or when night turns to day? As light levels increase and the relative amount of noise in the scene decreases, efficient coding theory predicts a transition in sensory processing. At low light levels, sensory systems should integrate spatial and temporal information, while at high light levels, neural processing should differentiate incoming signals to subtract predictive components. Previous experimental work has shown that, indeed, the center-surround structure of spatia

Visual coding is a highly dynamic process and continuously adapts to the current viewing context. At early stages of visual processing, adaptation was generally studied without considering behavioural contexts. However, we recently learned that locomotion and arousal strongly modulate visual processing, even at the retina level. Here, we aim to understand how locomotion impacts visual adaptation in the superior colliculus (SC), the most prominent visual centre in mice, which integrates retinal input in its superficial layers and performs sensorimotor transformations in its deeper layers. We r