Probing Bottom-up Processing with Multistable Images
The selection of fixation targets involves a combination of top-down and bottom-up processing. The role of bottom-up processing can be enhanced by using multistable stimuli because their constantly changing appearance seems to depend predominantly on stimulusdriven factors. We used this approach to...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2009-02-01
|
| Series: | Journal of Eye Movement Research |
| Subjects: | |
| Online Access: | https://bop.unibe.ch/JEMR/article/view/2244 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849701054636097536 |
|---|---|
| author | Ozgur E. Akman Richard A. Clement David S. Broomhead Sabira Mannan Ian Moorhead Hugh R. Wilson |
| author_facet | Ozgur E. Akman Richard A. Clement David S. Broomhead Sabira Mannan Ian Moorhead Hugh R. Wilson |
| author_sort | Ozgur E. Akman |
| collection | DOAJ |
| description | The selection of fixation targets involves a combination of top-down and bottom-up processing. The role of bottom-up processing can be enhanced by using multistable stimuli because their constantly changing appearance seems to depend predominantly on stimulusdriven factors. We used this approach to investigate whether visual processing models based on V1 need to be extended to incorporate specific computations attributed to V4. Eye movements of 8 subjects were recorded during free viewing of the Marroquin pattern in which illusory circles appear and disappear. Fixations were concentrated on features arranged in concentric rings within the pattern. Comparison with simulated fixation data demonstrated that the saliency of these features can be predicted with appropriate weighting of lateral connections in existing V1 models. |
| format | Article |
| id | doaj-art-6a01e56d8e2a495092ca15af13782cdc |
| institution | DOAJ |
| issn | 1995-8692 |
| language | English |
| publishDate | 2009-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Eye Movement Research |
| spelling | doaj-art-6a01e56d8e2a495092ca15af13782cdc2025-08-20T03:18:03ZengMDPI AGJournal of Eye Movement Research1995-86922009-02-011310.16910/jemr.1.3.4Probing Bottom-up Processing with Multistable ImagesOzgur E. Akman0Richard A. Clement1David S. Broomhead2Sabira Mannan3Ian Moorhead4Hugh R. Wilson5University of EdinburghUniversity College LondonUniversity of ManchesterImperial College LondonQinetiQYork UniversityThe selection of fixation targets involves a combination of top-down and bottom-up processing. The role of bottom-up processing can be enhanced by using multistable stimuli because their constantly changing appearance seems to depend predominantly on stimulusdriven factors. We used this approach to investigate whether visual processing models based on V1 need to be extended to incorporate specific computations attributed to V4. Eye movements of 8 subjects were recorded during free viewing of the Marroquin pattern in which illusory circles appear and disappear. Fixations were concentrated on features arranged in concentric rings within the pattern. Comparison with simulated fixation data demonstrated that the saliency of these features can be predicted with appropriate weighting of lateral connections in existing V1 models.https://bop.unibe.ch/JEMR/article/view/2244bottom-up processingV1Marroquin patternV4saliency toolbox |
| spellingShingle | Ozgur E. Akman Richard A. Clement David S. Broomhead Sabira Mannan Ian Moorhead Hugh R. Wilson Probing Bottom-up Processing with Multistable Images Journal of Eye Movement Research bottom-up processing V1 Marroquin pattern V4 saliency toolbox |
| title | Probing Bottom-up Processing with Multistable Images |
| title_full | Probing Bottom-up Processing with Multistable Images |
| title_fullStr | Probing Bottom-up Processing with Multistable Images |
| title_full_unstemmed | Probing Bottom-up Processing with Multistable Images |
| title_short | Probing Bottom-up Processing with Multistable Images |
| title_sort | probing bottom up processing with multistable images |
| topic | bottom-up processing V1 Marroquin pattern V4 saliency toolbox |
| url | https://bop.unibe.ch/JEMR/article/view/2244 |
| work_keys_str_mv | AT ozgureakman probingbottomupprocessingwithmultistableimages AT richardaclement probingbottomupprocessingwithmultistableimages AT davidsbroomhead probingbottomupprocessingwithmultistableimages AT sabiramannan probingbottomupprocessingwithmultistableimages AT ianmoorhead probingbottomupprocessingwithmultistableimages AT hughrwilson probingbottomupprocessingwithmultistableimages |