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Spatialized Auditory And Vibrotactile Cueing For Dynamic Three-Dimensional Visual Search, Rachel J. Cunio
Spatialized Auditory And Vibrotactile Cueing For Dynamic Three-Dimensional Visual Search, Rachel J. Cunio
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The traditional method of maintaining spatial awareness through visual displays can cause visual system overload and lead to performance decrements. This study examined the benefits of spatialized auditory, tactile, and audio-tactile cues for maintaining awareness as a method of enhancing visual search performance. I examined visual search performance in an immersive, dynamic, three-dimensional (360-degree), virtual reality environment with no cues, spatialized auditory cues, degraded spatialized auditory cues, spatialized tactile cues, spatialized audio-tactile cues, and degraded spatialized auditory with tactile cues. Results indicated a significant reduction in visual search time from the no-cue condition when any cues were presented. The tactile …
A Computational Model Of The Temporal Processing Characteristics Of Visual Priming In Search, Jordan M. Haggit
A Computational Model Of The Temporal Processing Characteristics Of Visual Priming In Search, Jordan M. Haggit
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When people look through the environment their eyes are guided in part by what they have recently seen. This phenomenon, referred to as visual priming, is studied in the laboratory through manipulations of stimulus repetition. Typically, in search tasks, response times are speeded when the same target is repeated relative to when it is changed (e.g., Maljkovic & Nakayama, 1994). Although priming is thought to be based on a memory mechanism in the visual system, there is a debate in the literature as to whether such a mechanism is driven by relatively early (e.g., feature-based accounts) or later (e.g., episodic …
Interaction Of Top-Down And Bottom-Up Search With Magnocellular- And Parvocellular-Mediated Stimuli, James Samuel Garrett
Interaction Of Top-Down And Bottom-Up Search With Magnocellular- And Parvocellular-Mediated Stimuli, James Samuel Garrett
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The current study simultaneously examined the potentiality of a magnocellular attentional advantage and the competition between top-down and bottom-up processing on attention during visual search as measured by covert and overt visual attention. Specifically, the study tested two opposing views of the competition between top-down and bottom-up processing. The contingent involuntary orienting hypothesis (Folk, Remington, & Johnston, 1992), states that goal directed search is not affected by target-irrelevant stimuli. In contrast, the distractor interference paradigm (Theeuwes, 1994), states that goal directed search can be affected by target-irrelevant stimuli if more salient than the rest of the search array. The study …
Cued Visual Search And Multisensory Enhancement, Jordan Haggit
Cued Visual Search And Multisensory Enhancement, Jordan Haggit
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Previous research has been divided on whether or not multisensory cues can speed visual search relative to their component unisensory cues alone. Some studies (e.g., Mateo et al., 2012) found reaction times for multisensory cues were not faster than the RT of the faster component unisensory cue alone. Other studies (e.g., Oskarsson et al., 2012) found the multisensory cue to be faster than either unisensory cue alone (i.e., multisensory enhancement). This study aimed to determine whether the relative effectiveness match between auditory and tactile cues affects multisensory enhancement on a visual search task. In Experiment 1 we estimated for each …
The Effect Of Cue And Target Similarity On Visual Search Response Times: Manipulation Of Basic Stimulus Characteristics, Steven Charles Fullenkamp
The Effect Of Cue And Target Similarity On Visual Search Response Times: Manipulation Of Basic Stimulus Characteristics, Steven Charles Fullenkamp
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This study tested the hypothesis that the similarity of the cue and target in a visual search task is related to performance. Specifically, it was hypothesized that as the similarity between the cue and the target along the dimensions of stimulus contrast, spatial resolution and size increases, the amount of time that it takes to find a target among distractors decreases. Three experiments were performed to investigate the question. Experiments 1 and 2 employed a methodology that employed homogeneous search arrays where the contrast, spatial resolution and size of the elements were constant (high contrast, high spatial resolution and large …
Attentional Limitations And The Visual Pathways, Satomi Maeda
Attentional Limitations And The Visual Pathways, Satomi Maeda
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The present study tested the hypothesis that three visual pathways (i.e. parvocellular, magnocellular, and koniocellular pathways) may influence the degree of dual-task interference using dual-task methodology. The magnocellular pathway consists of feature-coding mechanisms that are sensitive to transients and motion, and is thought to process information about the locations and movements of objects. The parvocellular pathway consists of feature-coding mechanisms that are sensitive to red-green and brightness information, while the koniocellular pathway consists of feature-coding mechanisms that are sensitive to blue-yellow chromatic information. Both the parvocellular and the koniocellular pathway are thought to process information useful for identifying objects. The …
Visual Search Performance In A Dynamic Environment With 3d Auditory Cues, John Paul Mcintire
Visual Search Performance In A Dynamic Environment With 3d Auditory Cues, John Paul Mcintire
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Previous research on aurally-aided visual search has repeatedly shown a significant reduction in response times when displaying 3D auditory cues. However, the vast majority of this research has only examined searches for static (non-moving) targets in static visual environments. In the present study, visual search performance in both static and dynamic (moving) visual environments is examined with and without virtual 3D auditory cues. In both static and dynamic environments, and for all observers, visual search times were significantly reduced when auditory spatial cues were displayed. Auditory cues provided the largest benefits when the target initially appeared at farther eccentricities and …