As Kandel famously described it: "Short-term memory is like a parking ticket—a temporary receipt that doesn’t change the car."
: It only has about 20,000 neurons, yet it can learn to withdraw its gill when poked. The Breakthrough: Memories are Physical
The next time you remember your first kiss, the taste of a childhood meal, or the lyrics to a song from high school, thank Eric Kandel and a tiny sea slug. Through the lens of , we no longer see memory as a mystery, but as a magnificent molecular dance—one that we are only beginning to choreograph.
bridged the gap between the intangible soul and the physical cell. He proved that our memories are not ethereal ghosts in the machine, but durable, physical entities encoded in the weight of our synapses.
Aplysia has a mere 20,000 neurons (compared to our 86 billion). More importantly, its neurons are enormous—visible to the naked eye—and they are arranged in simple, identifiable circuits. Kandel realized that if memory is universal, its building blocks must exist in the slug just as they do in us.