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 20 of 80 for “"Stroop task"”.
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Investigating trial types putatively evidencing semantic conflict in the Stroop task
Interference in the Stroop task is thought to arise from various stages of processing, including the semantic and response stages. Different experimental methods have been used in an attempt to dissociate the cognitive processes involved in these stages. The work presented in this thesis evaluates …
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Neurology of Attention: Interhemispheric Processing Modulates Attention in the Stroop Task
… (1) is not a static, but instead varies with task demands, (2) produces non-random responses to attentional demands, and (3) is a unique form of neural processing not necessarily requiring a priori hemispheric asymmetries.
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The effect of social comparisons on selective attention : an image based Stroop task
… stimuli was then assessed through use of a Stroop task, which randomly displayed thin female silhouettes and abstract images. Error rates and reaction times were recorded, with more errors and slower reactions times reflecting increased attention toward the female silhouette.</p> <p>A …
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Automaticity and Hemispheric Specialization in Emotional Expression Recognition: Examined using a modified Stroop Task
… valence judgments in a modified photo-word Stroop paradigm. Positive and negative words were superimposed across male and female faces expressing positive (happy) and negative (angry, sad) emotions. Subjects categorized the valence of each stimulus. Gender biases in judgments of expressions …
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Match-to-Sample Stroop Task: A Systematic Manipulation of Sample and Response Option Onset
<p>The Stroop task, in which participants identify the font color of a word which names an incongruent color, has long been used to investigate attentional processes; however, there is still debate concerning the source of the effects produced by the task. The s<em>emantic competition …
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An fMRI and TMS investigation of response, semantic, and task conflict in the Stroop task.
Overcoming Stroop interference (i.e., ignoring the meaning of a word whilst naming the colour it is printed in) requires selective attention which calls upon several different processes. A Stroop stimulus generates cognitive conflict at different stages of the processing stream (i.e., at the task, …
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Inhibitory Control Changes in Healthy Aging, Alzheimer’s Disease and Amnestic Mild Cognitive Impairment: An FMRI Study of the Stroop Task
… aging, AD and aMCI through utilization of the Stroop task. Inhibition is required to suppress the automatic reading response in order to identify the ink color of word stimuli with matching (congruent) or non-matching (incongruent) ink color. Whether differences exist behaviorally, or if …
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The Neural Correlates of the Age-Related Decrements in Selective Attention That Occur in Healthy Cognitive Aging: an FMRI Study of the Stroop Task
… a rapid event-related adaptation of the classic Stroop Task, concurrently with functional MRI scans. We recruited 60 cognitively normal participants from 40-90 years of age, with 12 participants within each decade group. We found that the bilateral Middle Frontal Gyrus (MFG) was the only area to …
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The Effects of Daytime Melatonin Administration on Sleep, Higher Cognitive Function, and Changes in the Brain
… people’s sleep, ability to perform an emotional Stroop task, and underlying brain architecture. 10 healthy adults (age = 26.8 ± 6.25 years) underwent a baseline period followed by an experimental period whereby melatonin was administered at inappropriate times, with daily activity logs kept …
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Psychophysiological responses of older adults to an anxiety -evoking stimulus
… obtained before, during, and after exposure to a Stroop color-word naming task and a snake video from 46 female younger adults (age 18--30) and 28 female older adults (age 65--80) who were designated as either snake fearful or snake nonfearful. No significant group differences were observed on …
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The causal role of selective information processing biases towards threat in anxiety
… was given on a modified dot-probe detection task, where participants were trained either to attend towards threat or towards neutral stimuli. Pre and post training assessment consisted of the anagram stress task (measure of emotional vulnerability), the dot-probe detection task (measure of …
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Cognitive assessment of deviant sexual interest using the emotional stroop and fMRI
… of sexual material using the emotional Stroop task to determine whether it is a reliable tool to be used in the assessment of deviant sexual interest for sexual abusers. Chapter one reviews the Stroop task and provides guidance to researchers for developing Stroop studies. Chapter two …
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Top-down attentional control in affective contexts
… distinct affective contexts. The color-word Stroop task was used to measure top-down attentional control, and an autobiographical memory task manipulated the affective context in which the task was performed. Each participant performed the Stroop task in positive, neutral, and negative …
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Anxiety or advantage?: detecting malingered symptoms in college students seeking academic accommodations
… symptoms. This study examined whether cognitive tasks can differentiate credible generalized anxiety from malingered anxiety among college students. Participants were classified into probable GAD, malingering anxiety, or low GA control groups using a structured diagnostic interview and …
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The effects of an ultra-endurance event on heart rate variability and cognitive performance during induced stress in Ironman triathletes
… up to 120 minutes have been studied. A modified Stroop Task is a laboratory stressor to assess executive cognitive function by means of reaction time and accuracy. The resting HRV is directly related to these prefrontal neural functions, but the effect of an altered HRV on cognitive function has …
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Neural Dynamics of Goal-Directed Action Selection: A Multivariate Approach to Evidence Accumulation and Cognitive Control in Response to Competing Stimuli
… of conflict resolution through the lens of the Stroop task. In Chapter 2, I asked how different kinds of task difficulty influence the neural process of accumulating evidence in service of an action. I used an Evidence Accumulation Model (EAM) and combined magneto- and electroencephalography …
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