The visual system is probably the best understood part of the brain. Over the past 75 years, neuroscientists have assembled a detailed account of how light waves entering your eyes allow you to recognize your grandmother's face, to track a hawk in flight, or to read this sentence. But a new study is calling a fundamental aspect of vision science into question, showing that even the best-studied parts of the brain can still hold plenty of surprises. Continue Reading... Use this thread to discuss the article above. What are your thoughts about Surprise discovery reveals second visual system in mouse cerebral cortex?