A weekly deep dive into the hidden architecture of your mind. V2: Where Early Vision Starts Becoming Interpretation Where It Lives V2, also known as the secondary visual cortex, the prestriate cortex, or Brodmann area 18, is located immediately adjacent to V1 in the occipital lobe. It forms a thin, horseshoe-shaped band that surrounds V1 on both the medial (toward the midline) and lateral (away from the midline) surfaces of the brain. While V1 lines the calcarine sulcus, V2

Understanding How Our Brain Sees When you open your eyes or encounter something new, your brain quickly creates a picture of what you are seeing. In about 100 milliseconds (ms), your brain has already formed a basic image of your surroundings. This image isn't complete, but it gives you a clear outline of what is there. Here is what actually happened in that brief moment: 0-10 ms: Light hits the retina. At the back of the eye is the retina, which contains photoreceptors. Pho

A weekly deep dive into the hidden architecture of your mind. The Primary Visual Cortex: Your Brain’s First Draft of Reality Where It Lives The Primary Visual Cortex, also known as V1, Brodmann's area 17, or the striate cortex, is located at the rear of your brain in the occipital lobe, positioned along the sides of the calcarine sulcus. What It Does V1 is the first place in the brain’s cortex where visual signals are analyzed. It’s the starting point for turning raw input fr