| EPSRC Reference: |
GR/N03457/01 |
| Title: |
MECHANISMS OF SELECTIVE ATTENTION AND TEXTURE PROCESSING IN EARLY VISION |
| Principal Investigator: |
Morgan, Professor M |
| Other Investigators: |
|
| 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.
|
|
Key Findings |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Potential use in non-academic contexts |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Impacts |
|
| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
|
| Date Materialised |
|
|
|
|
Sectors submitted by the Researcher |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
| Project URL: |
|
| Further Information: |
|
| Organisation Website: |
http://www.city.ac.uk |