Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Covert Attention"”.
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Lifespan changes in covert attention alignment
There are two ways that attentional resources can be aligned in visual space. They can be "pulled" automatically by stimulus cues, or "pushed" in a more strategic manner by the observer in response to information cues. The present study was designed to determine if the ability to align attention in …
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THE MODULATION OF COVERT ATTENTION BY EMOTION: AUTOMATIC PROCESSING OF EMOTIONAL VERSUS NEUTRAL VALENCED CUES IN A COVERT ATTENTION PARADIGM
Selective attention has been studied extensively and it is shown, for example, that individuals with conditions such as anxiety show attention bias to threat-related stimuli. It has been proposed that humans are predisposed or that it is naturally adaptive to selectively attend to emotional stimuli …
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Training and transfer of training in rapid visual search under high target-background similarity
… corresponding background. To explore changes in attentional networks with training in an MRI environment in the future, a paradigm suitable for an fMRI study was tested to determine if the training and transfer benefits remained when using a rapid presentation search paradigm that relies on …
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Specialized Signals for Spatial Attention in the Ventral and Dorsal Visual Streams
… functions in terms of their code for spatial attention, whose control was typically associated with the dorsal stream and prefrontal areas. We took advantage of recent fMRI studies that provide a systematic map of cortical areas modulated by spatial attention and suggest PITd, a ventral stream …
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Color Vision and its mechanisms in College students with Attention Deficit Hyperactivity Disorder
Attention Deficit Hyperactivity Disorder (ADHD) is the most prevalent childhood psychiatric disorder that was first described medically in 1775. However, it is still unclear what the `deficit' is in this clinical condition. Current evidence suggests that its etiology is heterogeneous encompassing …
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Visual attention in naturalistic scenes across the lifespan.
Visual attentional skills continue to develop through childhood and do not reach maturity until adolescence. On the other end of the spectrum, older adults’ visual attentional skills are declining with age. The development and decline of these skills can lead to difficulties in day to day …
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Pre-Saccadic Modulation of the Visually Evoked Potential
… an eye movement is made. It is believed that covert attention allotted to the intended destination of a saccade, called pre-saccadic attention, accounts for the improved discrimination of stimuli. Covert top-down attention, which consists of orienting your attention, and not your gaze, to an …
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Improving gesture recognition through spatial focus of attention
… channel architectures. We show that when spatial attention is focused on the hands, gesture recognition improves significantly, particularly when the channels are fused using a sparse network. We propose an architecture (FOANet) that divides processing among four modalities (RGB, depth, RGB flow, …
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Associations between Fear of Negative Evaluation and Covert and Overt Attention Bias Through Eye-Tracking and Visual Dot Probe
… remediation of intense and unfounded FNE, Attention Bias Modification Treatment (ABMT) targets attention bias. The degree to which FNE and biased attention are related processes is unknown. This study sought to assess the relationship between FNE and two indices of attention bias (dot probe …