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Does the world appear the same to everyone? Does what we know determine what we see? Why do we see the world as we do? Vision is our most dominant sense. From the light that enters our eyes to the complex cognitive processes that follow, we derive most of our information about what things are, where they are, and how they move from our vision. Visual Perception takes a refreshingly different approach to this enigmatic sense. From the function that vision serves for an active observer, to the history of visual perception itself the third edition has been extensively revised, updated and expanded, while still preserving the essential features of historical context, neurophysiology and independ...
William Charles Wells (1757-1817) was one of the foremost, and forgotten, American scientists of the eighteenth century. He should be acknowledged as laying the foundations for modern studies of vestibular function as well as eye movements. This book reprints his Essay on single vision with two eyes (1792) and his own Memoir of his life (1818). Wells’ essay on natural selection is reprinted as an Appendix. Wells' experiments and observations on natural phenomena will surprise students of science because of their modernity.
This illustrated survey covers what Nicholas Wade calls the "observational era of vision," beginning with the Greek philosophers and ending with Wheatstone's description of the stereoscope in the late 1830s.
Our contact with the world is through perception, and therefore the study of the process is of obvious importance and signi?cance. For much of its long history, the study of perception has been con?ned to natural- tic observation. Nonetheless, the phenomena considered worthy of note have not been those that nurture our survival—the veridical features of perception—but the oddities or departures from the common and c- monplace accuracies of perception. With the move from the natural world to the laboratory the oddities of perception multiplied, and they received ever more detailed scrutiny. My general intention is to examine the interpretations of the perc- tual process and its errors throughout history. The emphasis on errors of perception might appear to be a narrow approach, but in fact it enc- passes virtually all perceptual research from the ancients until the present. The constancies of perception have been taken for granted whereas - partures from constancies (errors or illusions) have fostered fascination.
In this book a leading researcher and artist explores how we see pictures and how they can communicate messages to us, both directly and indirectly by making allusions to objects in space or to stored images in our minds. Originally published in 1990, Dr Wade provides fascinating examples of pictures that communicate hidden messages, either by implying something else, or by a shape or portrait which is carried covertly within another design. He analyses image processing stages in vision, demonstrating that the various stages may be related to styles in representational art. He shows how the way we have been taught to look at and recognise objects, affects the way we see them. The book lavishly illustrates with original examples of visual allusions and includes detailed practical advice on how photographers and designers can create them. Essential reading for photographers, designers, artists, people in film and television, and anyone involved in visual science , visual communication and advertising.
Epistemology has traditionally been motivated by a desire to respond to skeptical challenges. The skeptic presents an argument for the view that knowledge is impossible, and the theorist of knowledge is called upon to explain why we should think, contrary to the skeptic, that it is genuinely possible to gain knowledge. Traditional theories of knowledge offer responses to the skeptic which fail to draw on the resources of the sciences. This is no simple oversight; there are principled reasons why such resources are thought to be unavailable to the theorist of knowledge. This book takes a different approach. After arguing that appeals to science are not illegitimate in responding to skepticism, this book shows how the sciences offer an illuminating perspective on traditional questions about the nature and possibility of knowledge. This book serves as an introduction to a scientifically informed approach to the theory of knowledge. This book is a vital resource for students and scholars interested in epistemology and its connections to recent development in cognitive science.
Eye movements are a vital part of our interaction with the world. They play a pivotal role in perception, cognition, and education. Research in this field is now proceeding at a considerable pace and casting new light on how the eyes move and what information we can derive during the frequentand brief periods of fixation. However, the origins of this work are less well known, even though much of our knowledge was derived from this research with far more primitive equipment. This book is unique in tracing the history of eye movement research. It shows how great strides were made in this area before modern recording devices were available, especially in the measurement of nystagmus. When photo...
The historical ways in which electricity was generated in large central power plants and delivered to passive customers through a one-way transmission and distribution network – as everyone knows – is radically changing to one where consumers can generate, store and consume a significant portion of their energy needs energy locally. This, however, is only the first step, soon to be followed by the ability to share or trade with others using the distribution network. More exciting opportunities are possible with the increased digitalization of BTM assets, which in turn can be aggregated into large portfolios of flexible load and generation and optimized using artificial intelligence and m...
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The age of the Martial Arts is coming to an end. The darkness of the shade has engulfed the land of Dalos, smothering the light of the spirit. Akio is the youngest surviving member of the legendary Dragon Clan. The clan, among many other Martial Arts clans, were once revered by the peoples of Dalos and Beyond. Now they are but a shadow of their former glory. Destroyed, scattered and suppressed by the Imperial Monarchies, who now engage in perpetual warfare between each other unchecked. Follow Akio on his quest through the chaotic, dark and war-ridden land of Dalos to re-unite his family. This quest will lead him to discover the truth behind the destruction of the Martial Arts Clans, the profusion of the shade and the dwindling of the Spirit.