Models of Neural Networks IV

Beschreibung

Close this book for a moment and look around you. You scan the scene by directing your attention, and gaze, at certain specific objects. Despite the background, you discern them. The process is partially intentional and partially preattentive. How all this can be done is described in the fourth volume of Models of Neural Networks devoted to Early Vision and Atten tion that you are holding in your hands. Early vision comprises the first stages of visual information processing. It is as such a scientific challenge whose clarification calls for a penetrating review. Here you see the result. The Heraeus Foundation (Hanau) is to be thanked for its support during the initial phase of this project. John Hertz, who has extensive experience in both computational and ex perimental neuroscience, provides in "Neurons, Networks, and Cognition" to neural modeling. John Van Opstal explains in a theoretical introduction "The Gaze Control System" how the eye's gaze control is performed and presents a novel theoretical description incorporating recent experimental results. We then turn to the relay stations thereafter, the lateral genicu late nucleus (LGN) and the primary visual cortex. Their anatomy, phys iology, functional relations, and ensuing response properties are carefully analyzed by Klaus Funke et al. in "Integrating Anatomy and Physiology of the Primary Visual Pathway: From LGN to Cortex", one of the most comprehensive reviews that is available at the moment.
With no effort we can scan a scene by directing our attention and gaze at specific objects, discerning them despite the background of other objects, contours, shadows, and changes in illumination. How all this can be done is discussed in this volume, which is devoted to early vision and attention, that is, to the first stages of visual information processing.

Autor*in

J. Leo van Hemmen

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Cortex anatomy cortical recording experimental neuroscience figure-ground segregation neural modeling neural networks perception preattentive scene segmentation primary visual pathway scene segmentation spiking neurons visual attention visual information processing visual selective attention

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