What is "telencephalization"

n. The evolutionary process by which cognitive functions which were regulated by lower nerve centers are progressively controlled, partially or entirely, by the cerebrum.

Telencephalization is the process by which the brain, during very early stages of development, begins to be regulated by the more complex processes of the forebrain (mainly the telencephalon) rather than the more basic, or primitive neural centers as is observed in early development of the neural tube [1]. This intricate phenomenon is initiated by the asymmetrical division of progenitor cells, which not only gives rise to neuronal cells of the central nervous system, but also to glial cells [2].