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Attenuation theory, also known as Treisman's attenuation model, is a model of selective attention proposed by Anne Treisman, and can be seen as a revision of Donald Broadbent's filter model. Treisman proposed attenuation theory as a means to explain how unattended stimuli sometimes came to be processed in a more rigorous manner than what ...
Additional research proposes the notion of a moveable filter. The multimode theory of attention combines physical and semantic inputs into one theory. Within this model, attention is assumed to be flexible, allowing different depths of perceptual analysis. [28] Which feature gathers awareness is dependent upon the person's needs at the time. [3]
Evidence for the pre-attentive state comes from Treisman's own studies. In a well-known study, Treisman created a display of four objects flanked by two black numbers. The display flashed on a computer screen for 1/5 of a second and followed by a random-dot masking field to eliminate residual perception of the stimuli after the stimuli were ...
In a 2002 study by Wathen & Burkell, [11] they proposed a theory that separated the evaluation process into distinct segments. In the theory, the process began with low-effort examinations of peripheral cues (e.g., appearance, design , organization, and source reputation) then continued to a more high-effort analysis of the content of the ...
This approach, with its emphasis on behavioral outcomes as the ultimate expressions of neural information processing, is also known for modeling sensory and motor decisions using Bayesian decision theory. Examples are the work of Landy, [15] [16] Jacobs, [17] [18] Jordan, Knill, [19] [20] Kording and Wolpert, [21] [22] and Goldreich. [23] [24] [25]
Muriel Skeet, a British nurse, was an early advocate for the development of the evidence base for health care. She produced studies and surveys including Waiting in Outpatients [ 2 ] (1965), which received widespread publicity and resulted in the introduction of appointment systems, and Marriage and Nursing [ 3 ] (with Gertrude Ramsden, 1967 ...
The model was developed by Dr. Kathleen Stevens at the Academic Center for Evidence-Based Practice located at the University of Texas Health Science Center at San Antonio. [3] The model has been represented in many nursing textbooks , used as part of an intervention to increase EBP competencies, and as a framework for instruments measuring EBP ...
Regression dilution, also known as regression attenuation, is the biasing of the linear regression slope towards zero (the underestimation of its absolute value), caused by errors in the independent variable. Consider fitting a straight line for the relationship of an outcome variable y to a predictor variable x, and estimating the slope of the ...