JOURNAL ARTICLE

How do flankers' relations affect crowding?

Tomer Livne, Dov Sagi
Journal of Vision 2010, 10 (3): 1.1-14
20377278
The visual system can integrate discrete units of information to construct a coherent description of the input it receives. Little is known about the processes of grouping and their implementation in the visual system. Previously we described a configural effect in which the global arrangement (degree of co-circularity) of Gabor flankers affected the degree of crowding with a Gabor target that they surrounded. Here we tested possible mechanisms by which the configural effect might operate in crowding. We ruled out simple explanations based on the effect of basic units constructing these configurations (pairs of opposing Gabors). Our results support an explanation for crowding that is based on grouping processes between flankers. They also suggest that not all flankers necessarily directly affect the target. Flankers might group together and interact with the target as a single element. Finally, using a computational model of crowding based on compulsory grouping (following Gestalt principles) and segmentation, we define the relative contribution of different pair relations of grouped elements to crowding.

Full Text Links

Find Full Text Links for this Article

Discussion

You are not logged in. Sign Up or Log In to join the discussion.

Related Papers

Remove bar
Read by QxMD icon Read
20377278
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"