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I was one of those fortunate people who had an opportunity to experience life as a visual neurophysiologist with Bill Levick for 8 wonderful years at the Australian National University in Canberra (1975-83). Bill was a master of extracellular recordings of
individual retinal ganglion cells and optic nerve fibers. It was painstaking work to methodically characterize the visual behavior, axonal conduction velocity, and central projection of large populations of individual cells necessary to develop the modern
concept of parallel visual pathways. Yet that was how it was accomplished, one cell at a time, by dedicated scientists like Bill Levick and his contemporaries.
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<div class="">In those days, Principal Investigators at the John Curtin School of Medical Research at ANU were expected to devote themselves full-time to experimental work, with generous institutional support eliminating the need to teach or apply for external
grants. As a young post-doc, I benefitted greatly from that extraordinary environment because it meant that I had Bill’s full attention as a mentor and senior teammate for all of our laboratory experiments. Bill taught me the empirical methodology of mammalian
neuroscience, how to think about the link between structure & function, and how to envision neural processing of the retinal image by intermingled populations of retinal neurons with specialized features needed for the visual tasks they support. That experience
shaped my entire career.
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<div class="">Bill’s professional life was a long, joyful immersion in a fascinating, scientific sea of empirical facts, compelling ideas, and lasting insights. May we all be so lucky!</div>
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Larry Thibos, Professor Emeritus<br class="">
Indiana University School of Optometry<br class="">
<a href="mailto:thibos@indiana.edu" class="">email: thibos@indiana.edu</a><br class="">
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<div class="">On May 9, 2022, at 1:49 PM, Rowland Taylor <<a href="mailto:wrtaylor@berkeley.edu" class="">wrtaylor@berkeley.edu</a>> wrote:</div>
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<div dir="ltr" class="">It is with great sadness that I pass on the news that Bill Levick passed away peacefully last Thursday.
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<div class="">Bill was a preeminent visual neuroscientist and Fellow of the Royal Society, the Australian Academy of Science, and the Optical Society of America. His analysis of the functional properties of retinal ganglion cells in the mammalian retina was
highly influential and revealed the presence of complex processing at the earliest stages of visual processing. Particularly dear to my heart was his seminal work with the late Horace Barlow, carried out at the University of Cambridge and UC Berkeley, on the
mechanisms of direction-selectivity in the rabbit retina. </div>
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<div class="">Bill was a kind and generous spirit, a wonderful mentor, and a dear friend. He will be sorely missed by all of us who were fortunate enough to have shared part of his life journey. </div>
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<div class="">Rest in peace Bill.</div>
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<div class="">Rowland Taylor, Ph.D.<br class="">
Professor<br class="">
<span style="color:rgb(34,34,34);font-family:"Open Sans",sans-serif;white-space:pre-wrap" class="">Herbert Wertheim School of Optometry and Vision Science &
</span>Helen Wills Neuroscience Institute,</div>
<div class="">University of California, Berkeley</div>
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