Topic: motion parallax

Distinguishing near and far visual cues is an essential computation that animals must carry out to guide behavior using vision. When animals move, self-motion creates motion parallax — an important but poorly understood source of depth information — whereby the speed of optic flow generated by self-motion depends on the depth of visual cues. This enables animals to estimate depth by comparing visual motion and self-motion speeds. As neurons in the mouse primary visual cortex (V1) are broadly modulated by locomotion, we hypothesized that they may integrate visual- and locomotion-related signals

Animals must infer the three-dimensional structure of the surrounding world from two-dimensional images on their retinas. For instance, animals use visual cues like motion parallax and binocular disparity to judge distances to objects as they navigate their environment. Although studies in several vision models have found neural activity that correlates with distance signals, the causal behavioral role of neurons and the range of possible properties that inform distance perception have remained poorly understood. Here, we developed a novel high-throughput behavioral assay to identify neurons i