Creierul are momente-cheie de dezvoltare.👨🏼⚕️☝🏻

In this monologue, the speaker discusses the existence of therapeutic applications for brain organoid transplantation, emphasizing that the brain, unlike other organs, has critical developmental windows that close early in life. Using the example of phonemic discrimination between the sounds /r/ and /l/, the speaker explains that children who are not exposed to these sounds before age four—such as those raised in Japan where the /r/ sound is absent—fail to distinguish them later, even after moving to an English‑speaking environment. This illustrates that the auditory cortex undergoes a critical period for sound learning, after which its plasticity sharply declines. Consequently, transplanting organoids into an adult brain is unlikely to succeed because the adult cortex no longer forms new connections, whereas transplantation into a newborn (still within the critical period) may allow integration. The speaker notes that only if we could reopen these critical periods in adults might adult organoid transplantation become feasible, though this possibility remains uncertain.










