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Full-Text Articles in Psychology
Does Crowding Obscure The Presence Of Attentional Guidance In Contextual Cueing?, Steven William Fiske
Does Crowding Obscure The Presence Of Attentional Guidance In Contextual Cueing?, Steven William Fiske
USF Tampa Graduate Theses and Dissertations
The contextual cueing effect was initially thought to be the product of memory guiding attention to the target location. However, the steep search slopes obtained in contextual cueing indicate an absence of attentional guidance. We hypothesized that crowding could be obscuring the presence of attentional guidance and investigated this possibility in 2 experiments. Crowding was manipulated by varying the density of items in the local target region in a contextual cueing task. We observed a significant reduction in search slopes between the novel and repeated conditions when crowding was reduced. Enhancing crowding eliminated the contextual cueing effect. These findings suggest …
Visual Search For Smoking Stimuli: Detection And Distraction, Jason A. Oliver
Visual Search For Smoking Stimuli: Detection And Distraction, Jason A. Oliver
USF Tampa Graduate Theses and Dissertations
Extensive research has shown that the attentional systems of addicted individuals are biased towards drug-related stimuli, but despite several decades of effort these results have frequently been inconsistent. Though commonly believed to result from addiction and dependence, cognitive research would suggest that frequent exposure to drug-related stimuli could affect the attentional processing of drug-related cues even if no actual drug use occurs. The present investigation examined attentional bias for smoking cues using a novel visual search paradigm amongst smokers currently in nicotine withdrawal and fully satiated smokers, as well as a non-smoker control group. Variables related to smoking behavior, as …
The Role Of Contextual Associations In The Selection Of Objects, Noah Patrick Sulman
The Role Of Contextual Associations In The Selection Of Objects, Noah Patrick Sulman
USF Tampa Graduate Theses and Dissertations
This paper describes a sequence of experiments addressing basic questions about the control of visual attention and the relationship between attention and object recognition. This work reviews compelling findings addressing attentional control on the basis of high-level perceptual properties. In five experiments observers were presented with a rapid sequence of object photographs and instructed to either detect or selectively encode a verbally cued object category. When these object categories (e.g. "baseball") were preceded by contextual images associated with a given object category (e.g. "baseball diamond"), observers were less likely to accurately report information about the target item. This effect obtained …