Do illusory conjunctions support feature-integration theory?
Do illusory conjunctions support feature-integration theory?
The results are inconsistent with the feature-integration theory, which predicts that when attention is focused on a subset of items, illusory conjunctions ought to occur within and outside of the attended subset, but not between the attended and unattended items.
What is feature-integration theory in psychology?
Feature integration theory is a theory of attention developed in 1980 by Anne Treisman and Garry Gelade that suggests that when perceiving a stimulus, features are “registered early, automatically, and in parallel, while objects are identified separately” and at a later stage in processing.
What is illusory conjunction in psychology?
Illusory conjunctions are defined as mistakenly perceiving features of one stimulus as belonging to another nearby stimulus.
What are illusory conjunctions and what do they demonstrate about feature analysis?
Illusory conjunctions are psychological effects in which participants combine features of two objects into one object. There are visual illusory conjunctions, auditory illusory conjunctions, and illusory conjunctions produced by combinations of visual and tactile stimuli.
What do illusory conjunctions tell us about attention?
This feature-integration theory predicts that when attention is diverted or overloaded, features may be wrongly recombined, giving rise to “illusory conjunctions.” The present paper confirms that illusory conjunctions are frequently experienced among unattended stimuli varying in color and shape, and that they occur …
What is feature-integration theory of attention?
A new hypothesis about the role of focused attention is proposed. 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 presented.
What is integration theory?
Integrated theories are theories that combine the concepts and central propositions from two or more prior existing theories into a new single set of integrated concepts and propositions. The most common form of integration involves combining social control and social learning theories.
How does feature integration theory address the binding problem?
Feature integration theory implies that binding errors occur if attention is not deployed to a certain location. Hence, illusory conjunctions do not result from “hallucinations.” Patients with deficits in certain brain regions, related to attention, show such illusory conjunctions also if attention is not distracted.
What is the Configural superiority effect?
in visual perception, a phenomenon in which a configuration of elements or features is easier to identify than a single feature alone.
What is load theory of attention?
A load theory of attention in which distractor rejection depends on the level and type of load involved in current processing was tested. This theory resolves the long-standing early versus late selection debate and clarifies the role of cognitive control in selective attention.
What is the name of the syndrome in which people always see illusory conjunctions?
Patients with simultanagnosia experience a large number of illusory conjunctions, incorrectly binding features from different objects (Friedman-Hill et al., 1995; Robertson et al., 1997; McCrea et al., 2006; Coslett and Lie, 2008).
What is a conjunction search?
a search task in which the target has two or more relevant features. According to feature-integration theory, conjunction search proceeds in a serial manner.
When do illusory conjunctions occur?
Illusory conjunctions generally occur when attentional resources are limited in some way. This is consistent with feature integration theory, which presumes that focused attention is require to combine different features together at the same visual location.
What experimental findings led to the development of feature integration theory?
One experimental finding that led to the development of feature integration theory (Treisman, 1988) was the discovery of illusory conjunctions (Treisman & Schmidt, 1982). Illusory conjunctions occur when features are mistakenly combined.
How does Balint’s syndrome support the feature integration theory?
Due to damage in the parietal lobe, these people are unable to focus attention on individual objects. Given a stimulus that requires combining features, people suffering from Balint’s syndrome are unable to focus attention long enough to combine the features, providing support for this stage of the theory. The stages of feature integration theory
What is Treisman’s feature integration theory?
The theory has been one of the most influential psychological models of human visual attention. According to Treisman, the first stage of the feature integration theory is the preattentive stage.
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