Feature Integration theory There are a number of researches with various stimuli, while most prevalent idea proposed for human visual search comes from A. Treisman (1980), who conducted a research illustrating Feature integration theory. It asserts that a visual search is faster in presence of dissimilar background and the number of distracters involved in background do not affect the time consumption in case of a feature search (a search that involves identification of a direct feature like color, shape, orientation or curvature). On the other hand, a conjunction search is affected widely with the number of distracters presented in the background. A conjunction search is defined as a search which does not involve a direct feature but a similarity of multiple features among the various objects. (For example ‘blue square’ has similarities with ‘blue triangle’ and ‘red square’.) Consequent of the propositions, feature integration theory illustrates that those two searches consists of different methodology for human visual search. Those methods are characterized as parallel searches and serial searches for feature and conjunctive patterns. As further illustrated in Feature Integration theory, feature search and conjunction search differ widely on time consumption patterns as conjunction search follows a twofold process which requires identifying the features and categorizing the conjunctions to create a pattern of search. The distracters found in the patterns are responsible for time consumptions. The feature-integration theory of attention suggests that attention must be directed serially to each stimulus in a display whenever conjunctions of more than one separable feature are needed to characterize or distinguish the possible objects (Treisman and Gelade, 1980) There are number of arguments and theoretical results that involve some serious diversions and modification to this theory. However, most of the theories involve the base of feature integration which asserts that there are found clear differences in the types of searches when direct features are involved or eliminated. Other theories and Guided search In contrast with feature integration theory there are some proposition which offers different arguments and researches for visual search. A major theory is in the propositions of Wolfe (1989) who offers a broad research for how visual search is not limited only to the factors if the searches are parallel or serial but it also depends largely on the motivating factors for a visual search. Wolfe presents this theory as the guided search theory. In his propositions, a number of subjects were passed through the experiments with varying number of stimuli and the data outcome was measured over the graphs to provide a serious deflection from Feature integration patterns. Subjects searched sets of items for targets defined by conjunctions of color and form, color and orientation, or color and size. Set size was varied and reaction times (RT) were measured. For many unpracticed subjects, the slopes of the resulting RT x Set Size functions are too shallow to be consistent with Treisman's feature integration model, which proposes serial, self-terminating search for conjunctions (Jeremy M. Wolfe, 1989). As those results offer a diversion in self-terminating s
‘Set-size and search type effect on search time during visual search task’ Introduction In visual search tasks, there are numerous factors that affect search time consumption on a variety of basis. A visual search task, including the number of objects to be recognized and synchronized consciously in an order, requires a timed recognitions and arraying that can be measured over a number of patterns…
Being a gargantuan work of literature, the novel spins itself around a number of themes that include memory, space and time as well as a number of other themes. The novel began to emerge in 1909 and then continued up to 1922 when the author became ill and died.
By scientifically studying this element of visual search, an individual makes use of a simple, and a well described search item. For instance, an individual will seek to look for a dark, short and slim man. This description identifies a particular kind of person, and thus makes it possible for the search to continue.
The ability to handle diverse people, the capacity to solve problems without escalating them are desirable for any individual seeking to serve as a ground hostess, owing to the fact that encountering some mini-crisis is not too uncommon, especially when dealing with tired and exhausted people (Air hostess, 2012 n.p.).
On the contrary, there are circumstances and cases in which the police may conduct a search without having a warrant, for the purpose of utilising that evidence gained from a search, to be used legally by the court. The need for warrant usually arises when law enforcement officials confront situations in which they need to respond to a myriad of 'crisis' under which police encounter might involve serious criminality (Decker, 1999).
The National PTA provides detailed resources on family and community involvement and also assists in subscriptions and legislations related to children, parents and public involvement (http://www.pta.org/). It can be used for classroom instruction by accessing the
The intervention studied was self-care management. Comparison was made between education of patient as well as family about the strategies to be adopted for therapeutic intervention and how the lack of education decreased compliance. Outcome to be evaluated
In order to further understand research language, it is important o understand what is meant by the catalogue of books available. Each book is properly cataloged by numbers and letters. These numbers and letters
I identified many organizations whose job descriptions and job specifications suited my competence. Even though completion of my current program could seal my suitability for the jobs, specifications matched my