Depth

What does it mean for scientists to truly understand, rather than to merely describe, how the world works? Michael Strevens proposes a novel theory of scientific explanation and understanding that overhauls and augments the familiar causal approach to explanation. What is replaced is the test for explanatorily relevant causal information: Strevens discards the usual criterion of counterfactual dependence in favor of a criterion that turns on a process of progressive abstraction away from a fully detailed, physical causal story. The augmentations include the introduction of a new, non-causal explanatory relevance relation—entanglement—and an independent theory of the role of black-boxing and functional specification in explanation. The abstraction-centered notion of difference-making leads to a rich causal treatment of many aspects of explanation that have been either ignored or handled inadequately by earlier causal approaches, including the explanation of laws and other regularities, with particular attention to the explanation of physically contingent high-level laws, idealization in explanation, and probabilistic explanation in deterministic systems, as in statistical physics, evolutionary biology, and medicine. The result is an account of explanation that has especially significant consequences for the higher-level sciences: biology, psychology, economics, and other social sciences.

When Josh Biswas found out his girlfriend, Lian, was cheating on him, it didn’t only break his heart, it threatened his GPA. Lian calls him boring and turns in their joint photography project in as her own, leaving Josh to come up with something alone or risk a failing grade. Determined to prove her wrong, Josh decides to head to the foothills of the Canadian Rockies to capture some daring photos of a family of bears that were recently spotted there. But he wasn’t expecting the bad cell service that makes the maps on his phone useless. Lost and wandering around, Josh stumbles onto something he was never meant to see. Suddenly, a group of men are chasing him through the wilderness. Josh has no fighting abilities and no survival skills. Will he ever make it out?

What does it mean to say that music is deeply moving? Or that music's aesthetic value derives from its deep structure? This study traces the widely employed trope of musical depth to its origins in German-language music criticism and analysis. From the Romantic aesthetics of E. T. A. Hoffmann to the modernist theories of Arnold Schoenberg, metaphors of depth attest to the cross-pollination of music with discourses ranging from theology, geology and poetics to psychology, philosophy and economics. The book demonstrates that the persistence of depth metaphors in musicology and music theory today is an outgrowth of their essential role in articulating and transmitting Germanic cultural values. While musical depth metaphors have historically served to communicate German nationalist sentiments, Watkins shows that an appreciation for the broad connotations of those metaphors opens up exciting new avenues for interpretation.

This wide-ranging textbook offers a fascinating survey of the latest thinking and research on in-depth therapeutic encounters by bringing together the latest theory, research and practice on working at relational depth with clients in counselling and psychotherapy. By exploring the meaning, challenges and experiences of relational depth, it provides insight into an important dimension of therapeutic practice and, for many, will act as a guide to new ways of thinking about their therapeutic relationships. This book is an essential read for all trainees and practitioners in counselling and psychotherapy who want to deepen their levels of therapeutic relating.

Depth Perception in Frogs and Toads provides a comprehensive exploration of the phenomenon of depth perception in frogs and toads, as seen from a neuro-computational point of view. Perhaps the most important feature of the book is the development and presentation of two neurally realizable depth perception algorithms that utilize both monocular and binocular depth cues in a cooperative fashion. One of these algorithms is specialized for computation of depth maps for navigation, and the other for the selection and localization of a single prey for prey catching. The book is also unique in that it thoroughly reviews the known neuroanatomical, neurophysiological and behavioral data, and then synthesizes, organizes and interprets that information to explain a complex sensory-motor task. The book will be of special interest to that segment of the neural computing community interested in understanding natural neurocomputational structures, particularly to those working in perception and sensory-motor coordination. It will also be of interest to neuroscientists interested in exploring the complex interactions between the neural substrates that underly perception and behavior.

The three-volume work Perceiving in Depth is a sequel to Binocular Vision and Stereopsis and to Seeing in Depth, both by Ian P. Howard and Brian J. Rogers. This work is much broader in scope than the previous books and includes mechanisms of depth perception by all senses, including aural, electrosensory organs, and the somatosensory system. Volume 1 reviews sensory coding, psychophysical and analytic procedures, and basic visual mechanisms. Volume 2 reviews stereoscopic vision. Volume 3 reviews all mechanisms of depth perception other than stereoscopic vision. The three volumes are extensively illustrated and referenced and provide the most detailed review of all aspects of perceiving the three-dimensional world. Volume 1 starts with a review of the history of visual science from the ancient Greeks to the early 20th century with special attention devoted to the discovery of the principles of perspective and stereoscopic vision. The first chapter also contains an account of early visual display systems, such as panoramas and peepshows, and the development of stereoscopes and stereophotography. A chapter on the psychophysical and analytic procedures used in investigations of depth perception is followed by a chapter on sensory coding and the geometry of visual space. An account of the structure and physiology of the primate visual system proceeds from the eye through the LGN to the visual cortex and higher visual centers. This is followed by a review of the evolution of visual systems and of the development of the mammalian visual system in the embryonic and post-natal periods, with an emphasis on experience-dependent neural plasticity. An account of the development of perceptual functions, especially depth perception, is followed by a review of the effects of early visual deprivation during the critical period of neural plasticity on amblyopia and other defects in depth perception. Volume 1 ends with accounts of the accommodation mechanism of the human eye and vergence eye movements.