Name
Abstract | ||
|---|---|---|
The spatial distortion hypothesis is one of several theories that explain certain aspects of neglect in patients with right parietal lesions. To determine whether a distorted representation of space can account for the performance of neglect patients in different visuospatial tasks, we asked 26 neglect patients to: (1) bisect horizontal lines and (2) to compare the width of two horizontally aligned bars. A simple mathematical model compatible with the idea of a stationary distortion of represented space in egocentric coordinates explained the results of the line-bisection task. A second model that had basically the same structure and was compatible with the idea of a distorted egocentric representation based on a dynamic remapping of space approximated the size-comparison data. These results support the view that abnormalities observed in the line-bisection and size-comparison tasks are due to a distorted internal representation of the external world. Certain findings suggest that this distortion could be based on a dynamic mapping of space determined by the distribution of visuospatial attention. |
Year | DOI | Venue |
|---|---|---|
2002 | 10.1007/s004220100278 | Biological Cybernetics |
Keywords | Field | DocType |
Mathematical Model,Horizontal Line,Internal Representation,External World,Distorted Representation | Visuospatial perception,Computer vision,Dynamic mapping,Spatial distortion,Neglect,Artificial intelligence,Horizontal line test,Distortion,Mathematics | Journal |
Volume | Issue | ISSN |
86 | 1 | 0340-1200 |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jochen Ditterich | 1 | 16 | 1.53 |
| Ingo Keller | 2 | 1 | 1.11 |
| Thomas Eggert | 3 | 2 | 1.53 |
| Andreas Straube | 4 | 0 | 0.34 |