Researchers have developed a new ophthalmological device that can detect degenerative visual problems such as age-related macular degeneration long before the onset of the first symptoms.
A newly designed optical illusion is helping researchers better understand visual processing and perception. The illusion creates a subjective reality in what we see, highlighting the constructive nature of perception.
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.
Researchers propose a new theory of what happens in the brain when we experience familiar seeming visual stimuli. The theory, dubbed sensory referenced suppression, suggests the brain understands different levels of activation expected for sensory input and corrects for it, leaving behind the signal for familiarity.
A new theory suggests the brain understands the level of activation required from a sensory input and corrects for it, leaving behind a signal for familiarity.
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.
In lower mammals, the iris may sense light and cause the pupils to constrict without involving the brain, a new study reports.