bioRxiv preprint doi: https://doi.org/10.1101/431155; this version posted January 2, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. Title: Everyday taxi drivers: Do better navigators have larger hippocampi? RUNNING TITLE: EVERYDAY TAXI DRIVERS Steven M. Weisberga, Nora S. Newcombeb, & Anjan Chatterjeec aUniversity of Pennsylvania, bTemple University Steven M. Weisberg (
[email protected]), Anjan Chatterjee (
[email protected]), Department of Neurology, University of Pennsylvania, Philadelphia, PA 19104. Nora S. Newcombe (
[email protected]), Department of Psychology, Temple University, Philadelphia, PA 19122. Declarations of interest: none Correspondence concerning this article should be addressed to Steven M. Weisberg, at Center for Cognitive Neuroscience, University of Pennsylvania, Philadelphia, PA 19104 USA. Email:
[email protected]. Phone: 610-212-3113. bioRxiv preprint doi: https://doi.org/10.1101/431155; this version posted January 2, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. EVERYDAY TAXI DRIVERS 1 Abstract Work with non-human animals and human navigation experts (London taxi drivers) suggests that the size of the hippocampus, particularly the right posterior hippocampus in humans, relates to navigation expertise. Similar observations, sometimes implicating other sections of the hippocampus, have been made for aging populations and for people with neurodegenerative diseases that affect the hippocampus.