Abstract
Sitting at the front of the central nervous system (CNS), the telencephalon gives rise to many brain regions including the cerebral cortex – the seat of cognition, consciousness, and mind that uniquely defines us as human beings. For this reason, the telencephalon has long fascinated neuroscientists and the public alike. Given its special and complex functions, as well as some developmental oddities, the telencephalon was thought to play by its own developmental rules. On the other hand, organisms evolve by reusing and modifying preexisting developmental mechanisms rather than creating new ones from scratch. This led to a conundrum – does the developing telencephalon use shared rules, unique ones, or both? As it turns out, both shared and unique rules apply to the developing telencephalon. In this chapter, we go over these rules, with special attention paid to the developing cerebral cortex in an evolutionary context. Collectively, the rules of telencephalic development have allowed the cortex to grow in size and complexity, thereby expanding the cognitive capacity and abilities of this most remarkable of organs over evolutionary time.
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Monuki, E.S. (2022). Induction and Patterning in the Telencephalon. In: Pfaff, D.W., Volkow, N.D., Rubenstein, J. (eds) Neuroscience in the 21st Century. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-6434-1_180-1
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DOI: https://doi.org/10.1007/978-1-4614-6434-1_180-1
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