A new map of the octopus visual system classifies different types of neurons in a part of the brain dedicated to vision, shedding new light on the evolution of the brain and visual systems in a more broad sense.
The visual system adapts to the loss of photoreception by increasing sensitivity but simultaneously becomes deleteriously hyperactive. The findings could lead to new therapies to protect vision or reverse vision loss.
The highly dynamic, new "expanding hole" optical illusion can be perceived by 86% of people. The illusion is so good at deceiving the brain, it causes pupillary dilation as though we are walking into a darkened room.
Researchers reveal how the brain creates an illusion of visual stability.
Study reveals how decisions based on visual information, which involves a complex stream of data flowing forwards and backward along the visual pathways, are broadcast widely to neurons in the visual system, including those not involved in the decision-making process.
Many people report feeling nausea and dizziness, similar to motion sickness, when looking at their cellphones or computers for too long. Researchers investigate why some experience cybersickness and provide advice on managing symptoms.
Effectively, mammals "dream" about the world they are about to experience before they are able to open their eyes and possibly before they are born. Researchers found before a newborn mouse opened its eyes, its retinal waves flow in a pattern that mimics the activity which would occur as the animal moves through the environment.