Here is an optical illusion challenge that will test your visual processing speed, attention to detail, and focus. There is a number 739 hidden among the pool of 789s, and your challenge is to spot ...

Critical flicker fusion (CFF), a measure of visual processing speed, predicts executive function in younger and older adults and may be helpful in predicting decline in executive function, say ...

Scientists found that individuals with multiple sclerosis (MS) who had a history of neuro-ophthalmic syndromes performed poorly on visual neuropsychological tasks. The article, "Neuro-ophthalmic ...