FOUNDATIONS Introduction to Visual Attention Mechanisms VIRGINIO CANTONI University of Pavia, Italy Magno and Parvo Visual Streams CARLO MARZI, University of Verona, Italy Where and What (or/and Perception and Action) DOV SAGI, The Weizmann Institute of Science, Israel Early Vision VITO DI GESU University of Palermo, Italy Bottom-up and Top-down Mechanisms ELIANO PESSA University of Rome, Italy Active Perception VITO ROBERTO Università di Udine, Italy Log-map analysis LUCA LOMBARDI University of Pavia, Italy ATTENTIONAL ENGAGEMENTS The Pop-out Theory ZHAO PING LI University College, London, UK Fuzzy Engagement Mechanisms MARCO PIASTRA University of Pavia, Italy The Texton Theory (or/and Contour integration and closure) DOV SAGI, The Weizmann Institute of Science, Israel Stimulus-Driven Capture of Attention STEVEN YANTIS, John Hopkins University, USA Experiences with the Eyeputer and other Scanpath recorders DANIELA ZAMBARBIERI Università di Pavia, Italy VISUAL SEARCH Mechanisms of Attentional Control STEVEN YANTIS, John Hopkins University, USA Mechanisms of Spatial Attention LEONARDO CHELAZZI, University of Verona, Italy		Search (A)Symmetries VITO DI GESU University of Palermo, Italy Detection versus Discrimination HEZY YESHURUM University of Tel Aviv, Israel MULTIRESOLUTION AND PLANNING The Complexity of Search Tasks JOHN K. TSOTSOS University of Toronto, Canada Hierarchical Perceptual Loops HEZY YESHURUM University of Tel Aviv, Israel Connectionist Models of Attentional Processing ELIANO PESSA University of Rome, Italy Saliency for Representation and Recognition HARRY WECHSLER George Mason University, Fairfax, USA Attention and Action Planning VITO ROBERTO Università di Udine, Italy ATTENTIONAL VISUAL ARCHITECTURES Neurobiological Models of Visual Attention ZHAO PING LI University College, London, UK Multiresolution Attention and Associative Memory Systems HARRY WECHSLER George Mason University, Fairfax, USA The Selective Tuning Model JOHN K. TSOTSOS University of Toronto, Canada Hierarchical and Associative Networks ALAIN MERIGOT University Paris-Sud, France Attentional Pyramidal Neural Mechanisms ALFREDO PETROSINO INFM-University of Salerno, Italy Conclusions to Visual Attention Mechanisms VIRGINIO CANTONI University of Pavia, Italy