The Neocortex

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Of the three organizers of this NATO Advanced Research Workshop on "Neocortex: Onto­ geny and Phylogeny", one derived most of his knowledge about neocortex from studies on birds, another had never studied any animal but the cat and could probably recognize not more than ten animal species, and the third had very limited experience with mountaineering. They had in common the belief that evolutionary thinking permeates what biologists do, but that evolution of species and structures cannot be directly experimentally addressed. Although the fossil record can provide some major insights, the inroad to the evolution of the brain is indirect, via comparative anatomy and developmental biology. By identifying similarities and differences between brain structures in the species at hand, comparative anatomy generates hypotheses of evolutionary transformations. By understanding the rules of morphological transformation, developmental biology can, in principle, estimate the likelihood that a given transformation may have actually occurred. The meeting was a way to check if this notion is viable, by gathering together scientists from these two fields. Standing, left to right: F. Ebner, V. Caviness, M. Weisskopf, B. Fritszch, N. Swindale, J. Walter, H. Karten, J. Pettigrew, E. Welker, M. Cynader, D. Frost, L. Lopez-Mascaraque, P. Katz, H. Jerison, E. Soriano, Mayor of Alagna, Dr. G. Guglielmina, and associate, H. Van der Loos, B. Finlay, H. Scheich, C. Ruela. Seated: S. Pallas, T. Lohmann, J. De Carlos, F. Valverde, G. Innocenti, M. Diamond v "Gathering" does not accurately describe what really happened.