A weekly deep dive into the hidden architecture of your mind. V3: Where Vision Starts Going Global Where It Lives V3, sometimes referred to as the tertiary visual cortex, is an extrastriate visual area located just beyond V2 in the visual processing hierarchy. It lies adjacent to V2 within the occipital lobe and receives most of its input from V2. Compared to V1 and V2, V3 represents a slightly later stage of visual processing and serves as an early higher-order visual area.

If focus felt hard this week, that doesn’t mean you failed. Your brain wasn’t designed to work in environments full of notifications, tabs, noise, and constant switching. A lot of what drains your energy isn’t doing the work, it’s filtering everything that isn’t the work. Filtering distractions is real cognitive labor. So if you feel mentally tired but don’t have a clear output to show for it, that doesn’t mean nothing happened. It means your attention system was under press

Most of us don’t actually focus. We perform it. You know the feeling. You’re staring at a screen, “working,” but your brain is elsewhere, replaying a conversation, planning dinner, thinking about everything else you have to get done. In a world full of distractions, it’s a struggle to maintain genuine focus. Often, what feels like concentration is actually just faking focus, going through the motions without truly engaging. But this isn’t laziness or lack of discipline. It’s

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

Your brain is not one big electrical signal. It’s actually hundreds of chemical conversations happening at once. These chemicals are neurotransmitters, and they control everything from motivation to movement. You’ve probably heard of dopamine and serotonin. Dopamine gets called the “pleasure” molecule and serotonin the “happiness” molecule. While those labels have tiny grains of truth, they’re mostly oversimplified marketing slogans. The real science is far more interesting,

A weekly deep dive into the hidden architecture of your mind. The Superior Colliculus : The Reflex Engine Behind Your Gaze Where It Lives The superior colliculus (SC) lives in the back of the midbrain. It sits above the inferior colliculus and behind the pineal gland. Together, the superior and inferior colliculi form the tectum (“roof”) of the midbrain. This location is important because it places the SC right in the path of fast visual and auditory information entering the

Most strong emotions only last about 90 seconds in the body. After that, what you feel is no longer biology. It’s the story your brain keeps repeating about what happened. Neuroscientist Jill Bolte Taylor discovered that: An emotional chemical surge rises and falls within 1.5 minutes. If you stay upset longer, you are re-firing the thought loop yourself That means: You can’t always control the first 90 seconds. You can control what happens after. Next time you feel yourself