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Institute of Advanced Study

IAS Staff

Publication details for Prof Robert A. Barton

Whiting, B. & Barton R.A. (2003). The evolution of the cortico-cerebellar complex in primates: anatomical connections predict patterns of correlated evolution. Journal of Human Evolution 44(1): 3-10.

Author(s) from Durham

Abstract

Investigations into the evolution of the primate brain have tended to neglect the role of connectivity in determining which brain structures have changed in size, focusing instead on changes in the size of the whole brain or of individual brain structures, such as the neocortex, in isolation. We show that the primate cerebellum, neocortex, vestibular nuclei and relays between them exhibit correlated volumetric evolution, even after removing the effects of change in other structures. The patterns of correlated evolution among individual nuclei correspond to their known patterns of connectivity. These results support the idea that the brain evolved by mosaic size change in arrays of functionally connected structures. Furthermore, they suggest that the much discussed expansion of the primate neocortex should be re-evaluated in the light of conjoint cerebellar expansion.

Contact Details

Institute of Advanced Study
Durham University
Cosin's Hall
Palace Green
Durham 
DH1 3RL
Telephone: +44 (0)191 334 2589
Email: enquiries.ias@durham.ac.uk