منابع مشابه
The spatial resolution of visual attention.
Two tasks were used to evaluate the grain of visual attention, the minimum spacing at which attention can select individual items. First, observers performed a tracking task at many viewing distances. When the display subtended less than 1 degrees in size, tracking was no longer possible even though observers could resolve the items and their motions: The items were visible but could not be ind...
متن کاملDissecting Spatial Visual Attention
it has been recognized that at least two forms of spatial attention can be found in vision. For example, Wundt (1902) observed that attention could be involuntary or voluntary. A variety of distinctions have been made that more or less correspond to Wundt’s distinction, including goal-directed attention versus stimulus-driven capture and endogenous attention versus exogenous attention. the term...
متن کاملSeminar on the Spatial Resolution of Attention
This is a summary of a seminar that considered the spatial resolution of visual attention. This document contains the syllabus, weekly question sets, and a summary of the discussion for each week.
متن کاملHow Attention Affects Spatial Resolution.
We summarize and discuss a series of psychophysical studies on the effects of spatial covert attention on spatial resolution, our ability to discriminate fine patterns. Heightened resolution is beneficial in most, but not all, visual tasks. We show how endogenous attention (voluntary, goal driven) and exogenous attention (involuntary, stimulus driven) affect performance on a variety of tasks me...
متن کاملThe spatial distribution of visual attention
We use a novel search task to investigate the spatial distribution of visual attention, developing a general model from the data. Observers distribute attention to locations defined by stripes with a high penalty for attention to intervening areas. Attended areas are defined by a square-wave grating. A target is in one of the even stripes, and ten false targets (identical to the real target) ar...
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ژورنال
عنوان ژورنال: Cognitive Psychology
سال: 2001
ISSN: 0010-0285
DOI: 10.1006/cogp.2001.0755