Crowding with conjunctions of simple features
نویسندگان
چکیده
منابع مشابه
Crowding with conjunctions of simple features.
Several recent studies have related crowding with the feature integration stage in visual processing. In order to understand the mechanisms involved in this stage, it is important to use stimuli that have several features to integrate, and these features should be clearly defined and measurable. In this study, Gabor patches were used as target and distractor stimuli. The stimuli differed in thr...
متن کاملCrowding: Including illusory conjunctions, surround suppression, and attention.
This special issue of Journal of Vision is devoted to ‘‘Crowding,’’ a failure of object recognition. An object is ‘‘crowded’’ when clutter jumbles its appearance, making it impossible to identify. Clutter impairs perception of objects. As every child knows, Waldo is hard to find. Long-range effects of non-overlapping distractors can alter the appearance of an object, making it unrecognizable. A...
متن کاملTemporal resolution for the perception of features and conjunctions.
The visual system decomposes stimuli into their constituent features, represented by neurons with different feature selectivities. How the signals carried by these feature-selective neurons are integrated into coherent object representations is unknown. To constrain the set of possible integrative mechanisms, we quantified the temporal resolution of perception for color, orientation, and conjun...
متن کاملSpatial Attention in Visual Search for Features and Feature Conjunctions
Spatial attention was measured in visual search tasks using a spatial probe . Both speed and accuracy measures showed that in a conjunction task, spatial attention was allocated to locations according to the presence of target features. Also, contrary to some predictions, spatial attention was used when a clearly distinguishable feature defined the target. The results raise questions about any ...
متن کامل2 Visual memory for features , conjunctions , objects , and locations
In her Multiple-Entry, Modular Memory (MEM) model on human cognition, Marcia Johnson differentiated perceptual subsystems that interact directly with the external environment and reflective subsystems that operate in the absence of external input (Johnson, 1992). Visual memory is an example of processes that are situated at the border between these two. Short-term visual memory directly bridges...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Vision
سال: 2007
ISSN: 1534-7362
DOI: 10.1167/7.2.23