- Seminars
- Dimensional constraints on distractor handling in visual search
Dimensional constraints on distractor handling in visual search
Speaker
H. René Liesefeld - Ludwig Maximilians Universitaet Muenchen
Date
Oct 28, 2019 - Time:
11:00
Aula 5 - Piastra odontoiatrica
Abstract
Salient-but-irrelevant objects have the potential to distract attention and interfere with the task of searching for relevant objects. A very potent mechanism for reducing this interference, the (top-down) modulation of the distractor’s (bottom-up) saliency signal, is suggested by the dimension-weighting account. Various strands of psychophysical and electrophysiological evidence indicate that people can very effectively down-weight a whole distractor dimension, but not a specific distractor feature when using a priority map to guide attention.
These data patterns are well accounted for by a dimension-weighting-based computational model of priority computations that assumes a partial (though not perfect) down-weighting of the distractor whenever target and distractor stand out in different dimensions.
- Data pubblicazione
- Oct 16, 2019
- Contact person
- Chiara Della Libera
- Department
- Neurosciences, Biomedicine and Movement Sciences
ATTACHMENTS
- Locandina