--- title: "Meaning & Key Takeaway of: It’s not until the non-NMDA has been…" description: "\"“It’s not until the non-NMDA has been stimulated over and over by a long train of glutamate release, allowing enough sodium to flow in, that this activ..." image: "https://sms4smile.com/quotes/i/1ff/robert-m-sapolsky-1166_fitness_it-s-not-until-the-non-nmda-has-been-sti_238807.png" --- # It’s not until the non-NMDA has been stimulated over and… ![“It’s not until the non-NMDA has been stimulated over and over by a long train of glutamate release, allowing enough sodium to flow in, that this activates the NMDA receptor. It suddenly responds to all that glutamate, opening its channels, allowing an explosion of excitation. This is the essence…” quote by Robert M. Sapolsky](https://sms4smile.com/quotes/i/1ff/robert-m-sapolsky-1166_fitness_it-s-not-until-the-non-nmda-has-been-sti_238807.png) [Download](https://sms4smile.com/quotes/i/1ff/robert-m-sapolsky-1166_fitness_it-s-not-until-the-non-nmda-has-been-sti_238807.png) [Open image](https://sms4smile.com/quotes/i/1ff/robert-m-sapolsky-1166_fitness_it-s-not-until-the-non-nmda-has-been-sti_238807.png) > ““It’s not until the non-NMDA has been stimulated over and over by a long train of glutamate release, allowing enough sodium to flow in, that this activates the NMDA receptor. It suddenly responds to all that glutamate, opening its channels, allowing an explosion of excitation. This is the essence of learning.”” [Robert M. Sapolsky](https://sms4smile.com/quotes/author/robert-m-sapolsky/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Repeated glutamate stimulation eventually activates NMDA receptors, triggering a burst of neural activity that underlies learning. **In simple terms:** Repeated signals unlock learning receptors, causing strong brain activity. Key Takeaway Focus on repeated practice to strengthen learning pathways. Themes neuroscience learning plasticity Mood curious analytical Type educational scientific When to use this quote - studying a skill - rehearsing a speech - training athletes - learning a language - musical practice Key Concepts NMDA receptor activation synaptic strengthening glutamate signaling Questions to Reflect On - How does repetition change brain chemistry? - What limits the speed of learning? 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