Visual Search

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). Visual search can take place either with or without eye movements. Common examples include trying to locate a certain brand of cereal at the grocery store or a friend in a crowd (e.g. Where's Waldo?). The scientific study of visual search typically makes use of simple, well-defined search items such as oriented bars or colored letters. The cognitive architecture of the visual system is then assessed by establishing which factors affect the amount of time taken by the observer to indicate whether a search target is present or absent. One of the most common factors affecting such measures of reaction time (RT) relates to the number of distractors present in the visual search task. An increase in the number of distractors often leads to an increase in search RT and is thus also related to an increase in difficulty of the task (See Fig 1). The measure of the involvement of attention in the search task is often manifested as a slope of the response time function over the display size, or number of distractors (RT slope).

Read more about Visual SearchRelationship With The Parietal Cortex, Effects of Aging, Face Recognition, Effect of Alzheimer's, Effects of Autism

Other articles related to "visual search, search, visual":

Knowledge Management Software - Visual Search
... One of the departures from the almost standard keyword search approach are those group of companies developing visual search techniques ... A common visual search approach is the tree traversal where a folder is opened and inside the display of that folder are further sub-folders ...
Content-based Image Retrieval - CBIR Software Systems
... IMMENSELAB Imprezzeo Image Suite Enterprise Visual Search isk-daemon an open source database server capable of adding content-based (visual) image searching to image related ... LTU-Corbis Visual Search Octagon PIBE RevIMG SHIATSU Large scale visual search TinEye University of Washington FIDS Demo Visual image search demo ...
Visual Search - Effects of Autism
... thus with lower RT than matched controls without autism in feature and conjunctive visual search tasks ... Firstly, it is suggested that visual search tasks most likely involve exogenous orienting of attention, meaning that attention is guided by an external stimulus ... Therefore, since visual search tasks emphasize exogenous attention shifting, this explains how autistic individuals can have superior performance on these tasks ...
Mathematical Psychology - Important Theories and Models - Memory Scanning, Visual Search
... Push-down stack Serial exhaustive search (SES) model. ...
Animal Cognition - Research Questions - Attention - Visual Search and Attentional Priming
... Visual search typically calls for this sort of selection, and search tasks have been used extensively in both humans and animals to determine the ... Experimental research on visual search in animals was initially prompted by field observations published by Luc Tinbergen (1960) ... object, which Tinbergen called a "searching image." Another way to produce attentional priming in search is to provide an advance signal that is associated with the target ...

Famous quotes containing the words search and/or visual:

    At any age we must cherish illusions, consolatory or merely pleasant; in youth, they are omnipresent; in old age we must search for them, or even invent them. But with all that, boredom is their natural and inevitable accompaniment.
    Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)

    For women ... bras, panties, bathing suits, and other stereotypical gear are visual reminders of a commercial, idealized feminine image that our real and diverse female bodies can’t possibly fit. Without these visual references, each individual woman’s body demands to be accepted on its own terms. We stop being comparatives. We begin to be unique.
    Gloria Steinem (b. 1934)