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Details of Grant 

EPSRC Reference: GR/N03457/01
Title: MECHANISMS OF SELECTIVE ATTENTION AND TEXTURE PROCESSING IN EARLY VISION
Principal Investigator: Morgan, Professor M
Other Investigators:
Dayan, Professor P Dakin, Professor S Whittle, Professor P
Researcher Co-Investigators:
Project Partners:
Department: Optometry and Visual Science
Organisation: City, University of London
Scheme: Standard Research (Pre-FEC)
Starts: 30 September 2000 Ends: 29 September 2003 Value (£): 162,526
EPSRC Research Topic Classifications:
Vision & Senses - ICT appl.
EPSRC Industrial Sector Classifications:
Healthcare Creative Industries
Information Technologies Transport Systems and Vehicles
No relevance to Underpinning Sectors
Related Grants:
Panel History:  
Summary on Grant Application Form
The object is to develop a model to predict the ability of human observers to carry out large-scale averaging of orientation and speed information in pre-attentive vision. The model assumes that wide-scale averaging is an obligatory feature of early pre-attentive vision, and that the function of attention is to restrict the spatial scale of such averaging. We shall build upon previously published work by the applicant and others and on new experiments to develop a model of averaging based upon recurrent excitation in horizontally-connected cortical networks (Parkes & Morgan, 1999). Experiments will determine the interactions between spatial frequency and texture-element separation in determining the effectiveness of averaging. We shall also investigate why observers show change blindness to object change, when their ability to compare global statistical differences is comparatively good. Finally, we shall investigate sensitivity to global statistical properties of speed/velocity fields, and apply our findings to test recent claims that neural synchrony is an important determinant of texture perception.
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Organisation Website: http://www.city.ac.uk