ConceptColumnAllocation

How does the brain decide where to store information when it encounters something new? This might sound abstract, but it's a problem your brain solves every time you see something new, hear a sound you've never heard before, or form a new memory.

When the Request signal comes in, imagine it comes from the hippocampus, it has to activate the first available column and suppress all the others. This happens through a clever combination of timing and inhibition. First, the Request signal is routed so that all columns receive it at the same time. Then each column checks its own in-use synapse. If the synapse says the column is already in use, the signal gets blocked by an inhibitory synapse, shown in black in this simulation. If the column is available, the signal propagates onward and here's the clever part. Once that happens, the column immediately triggers a suppressive cascade. Inhibitory synapses that block other columns from activating. That way, only the first available column is activated, even if several are technically free. It's fast, efficient, and biologically plausible.

• Source: 2025-07-29 Memories Go Where??