William T. McClatchey

William T. Freeman

Image intensity variations can result from several di erent object surface e ects, including shading from 3-dimensional relief of the object, or paint on the surface itself. An essential problem in vision, which people solve naturally, is to attribute the proper physical cause, e.g. surface relief or paint, to an observed image. We addressed this problem with an approach combining psychophysica...

Biography of William T . Newsome

T he processing of visual information by the brain is a complex task. Identifying the neural mechanisms that underlie visual perception and vision-based decision-making has been the research focus of William T. Newsome over the past 30 years. Elected to the National Academy of Sciences in 2000, Newsome explains that ‘‘perceptual experience is constructed from streams of action potentials’’ in t...

Celebrating the work of William T. Carpenter Jr.

William T. Tutte (1917–2002), Volume 51, Number 3

ing from the behavior of linearly independent sets of columns of a matrix, in 1935, Whitney defined a matroid M to consist of a finite set E (or E(M)) and a collection I (or I(M)) of subsets of E called independent sets with the properties that the empty set is independent; every subset of an independent set is independent; and if one independent set has more elements than another, then an elem...

William Harvey

as part of the moral order on the one hand and as pathological phenomena on the other. Dr. Riese writes interestingly of his seventeenth century theorists, and the reader will find much of what he has to say rewarding, especially with respect to the work of medical men so little known as de la Forge and de la Chambre. Rather than praise the obvious merits of Dr. Riese's monograph, however, I sh...