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The preattentive process, as Wolfe explains, directs attention in both a bottom-up and top-down way. Information acquired through both bottom-up and top-down processing is ranked according to priority. The priority ranking guides visual search and makes the search more efficient. Whether the Guided Search Model 2.0 or the feature integration ...
Visual search is a type of perceptual task requiring attention that typically involves an active scan of the visual environment for a particular object or feature (the target) among other objects or features (the distractors). [1] Visual search can take place with or without eye movements.
When considering the nature and effects of object-based attention, [9] three research theories are commonly mentioned; [10] these are presented below. Consideration is then given to the enhancing effect of object-based attention on memory, and its inhibitory effect during certain kinds of visual search.
Biased competition theory advocates the idea that each object in the visual field competes for cortical representation and cognitive processing. [1] This theory suggests that the process of visual processing can be biased by other mental processes such as bottom-up and top-down systems which prioritize certain features of an object or whole items for attention and further processing.
John Willats (died April 2006) [1] was a psychologist and artist known for his research on pictorial systems of depiction and perspective, which included a taxonomy of the methods of visual projection used by various artists. [2] He was considered an expert on children's drawings and how children develop drawing abilities. [3]
The Trail Making Test is a neuropsychological test of visual attention and task switching.It has two parts, in which the subject is instructed to connect a set of 25 dots as quickly as possible while maintaining accuracy. [1]
Treisman researched visual attention, object perception, and memory. One of her most influential ideas is the feature integration theory of attention , first published with Garry Gelade in 1980. Treisman taught at the University of Oxford , University of British Columbia , University of California, Berkeley , and Princeton University .
Spatial ability is the capacity to understand, reason and remember the visual and spatial relations among objects or space. [1] There are four common types of spatial abilities: spatial or visuo-spatial perception, spatial visualization, mental folding and mental rotation. [3]