Dear cortex, we need to talk about what the amygdala's been doing. While everyone keeps obsessing over the brain's drama department, a different crew has been quietly building the infrastructure: the neocortex, that six-layered slab of tissue running perception, planning, and a suspicious amount of...
Under a microscope, the healthy retina looks almost absurdly tidy - thin bands of cells stacked like pastry layers, each one crisp, deliberate, and a little smug about its organizational skills. In the new eLife paper Afadin sorts different retinal neuron types into accurate cellular layers, that...
Try this: keep your eyes on one spot and still notice the thing creeping in from the side. You do it all the time. Driving, reading a room, pretending not to care who just walked in. Your brain runs this little stunt constantly, and for years the standard story was that some dedicated attention...
Sorry to be the one to tell you this, but your brain has been checking the seasonal menu this whole time. It is not just a gray blob doing spreadsheets in your skull. It is more like a moody kitchen that changes the recipe when the days get short. Terrible joke, I know. But that is basically what a...
Bad timing rewires vision.
Legs need brakes. I have been thinking about how smooth movement depends not just on cells shouting "go, go, go," but on other cells stepping in like a very competent bouncer before the dance move becomes a face-plant.
Dementia may begin as a traffic-control problem, not a memory problem. Long before a neuron fully falls apart, its internal rail system can slip out of time. And when timing fails inside a cell that stretches like a weird biological extension cord, bad things pile up fast.
You're using this right now. As your eyes move across these words, your brain is simmering a stock - pulling together bits of sensation, language, and context, then deciding what deserves another turn on the stove later. And when you stop reading, it does not file the experience away like a smug...
What if the way you pick a snack at 11:07 p.m. could help predict how you would behave in a totally different decision a day later? Not in a fortune-cookie way. More in a "your brain has habits it keeps dragging from room to room like an emotional support ottoman" way. That is basically the itch...
Last winter, a middle-aged patient came into clinic with a strange bundle of problems that did not look like they belonged in the same sentence: dizzy spells on standing, constipation that would not quit, a bladder acting like it had ghosted its owner, and meals that seemed to sit in the stomach...
That is the situation. A millimeter-long worm with a brain you could lose in a comma still manages to sniff out better food. Not just any food - food richer in leucine, an essential amino acid animals need but cannot make themselves. In the new eLife paper on Caenorhabditis elegans, researchers...
It’s more like a committee trapped in an escape room with a hormone department that gets blamed for everything. Aggressive trade? Testosterone. Bad poker face? Testosterone. Bought a motorcycle at 2 a.m.? Ah yes, the usual suspect. But this new meta-analysis delivers a clean situation report:...
On a functional ultrasound scan, brain activity can look like weather rolling across a map - bright streaks of blood flow flashing through soft gray tissue, like a coach drawing hot routes in real time. Then a conventional metal electrode barges in and blocks the view. That is the problem behind a...
A kid runs toward the street, and the grown-up nearby does not yell "faster." They grab the backpack and say, "Absolutely not, tiny maniac." That is basically the vibe of this paper. In the injured mouse brain, some cells that help rebuild insulation around nerve wires seem to get a biochemical...
The surprise in Budoff and Poleg-Polsky's data was not that mouse retinal ganglion cells have favorite neighborhoods. People already suspected some of that. The real eyebrow-launcher was that some cells with the same molecular identity seemed to change their gene expression depending on where they...
Late spring evenings do something funny to your sense of time. Dinner stretches, the light hangs around like it forgot to leave, and your brain quietly retunes itself to the longer day. That is a handy way into this paper, because it is about keeping messy signals organized when the world refuses...
If you Google brain models, you'll find a lot of glossy talk about "decoding the mind" and other phrases that sound like they were focus-grouped by a startup and a TED stage. What you will not find often enough is the question that actually hurts: if your model claims it understands a brain...
While the kettle grumbles and your coffee drips into the mug, your ears are already doing stupidly complicated labor. They sort the hiss of water, the clink of ceramic, maybe a podcast host talking too fast for a human with bills. None of this feels hard. Which is rude, because under the hood your...
That, more or less, is the game in this new paper. And it is a surprisingly ambitious one.
Like a restaurant kitchen after one spectacular grease fire, the brain's cleanup crew does not always reset to factory settings. Sometimes the immune cells remember the chaos and treat every later spark like a five-alarm disaster. That, in very non-chef language, is trained immunity - a kind of...
