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The Effect of Executive Control Depletion on Within-Task Transfer

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In everyday life, mental fatigue can be detrimental across many domains including driving, learning, and working. Given the importance of understanding and accounting for the deleterious effects of mental fatigue on behavior, a growing body of literature has studied the role of executive control processes in mental fatigue. In a…

In everyday life, mental fatigue can be detrimental across many domains including driving, learning, and working. Given the importance of understanding and accounting for the deleterious effects of mental fatigue on behavior, a growing body of literature has studied the role of executive control processes in mental fatigue. In a laboratory setup, participants complete a task that places demands on executive control processes and are later given a transfer task. Generally speaking, decrements to subsequent task performance are taken as evidence that the initial executive control task created mental fatigue through the continued engagement of executive control. Several hypotheses have been developed to account for negative transfer resulting from executive control depletion including cognitive resource depletion and task-switching. In the current study, we provide a brief literature review, specify current theoretical approaches to depletion, and provide a strong empirical test of theories for negative transfer from executive control depletion (i.e., does continued performance of an executive control task negatively transfer to that exact same task).
ContributorsLau, Kin Hang (Author) / Brewer, Gene (Thesis director) / Knight, George (Committee member) / Blais, Chris (Committee member) / Barrett, The Honors College (Contributor) / School of Mathematical and Statistical Sciences (Contributor) / Department of Psychology (Contributor)
Created2014-12
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Overlapping Narrative of Muslim Refugees and (Undocumented) Immigrants

Description
Muslim refugees and Muslim immigrants, and undocumented immigrants have been a prominent part of American culture and have been woven into the history of the United States. Both group's presence in the United States has elicited rhetoric from U.S citizens and U.S public officials. One may infer that the narrative…

Muslim refugees and Muslim immigrants, and undocumented immigrants have been a prominent part of American culture and have been woven into the history of the United States. Both group's presence in the United States has elicited rhetoric from U.S citizens and U.S public officials. One may infer that the narrative of Muslim refugees and Muslim immigrants overlaps the narrative of undocumented immigrants living in the United States. Both Muslim refugees and immigrants as well as unauthorized immigrants, are criminalized in the United States, or are associated to crime by default of their faith and or their legal status. The association that Muslim refugees and Muslim immigrants, and undocumented immigrants have with crime, based on their rhetoric, has elicited a policy from the United States government as well. The United States government has responded to a presumed threat that both groups pose to U.S. citizens and the nation by means of aggressive legislation, both local and federal. In this research paper, past and present discourse on Muslim refugees and Muslim immigrants and undocumented immigrants was analyzed to determine each of the group's narrative; the mainstream media, newspapers and photographic images, was also considered to determine the narrative of both groups. Based on the discourse on Muslim refugees and Muslim immigrants and on undocumented immigrants, the media portrayal of both groups, and on the change of public policy one may assert that the narratives of both groups overlaps; as both Muslim refugees and immigrants and unauthorized immigrants are seen as a possible threat to the American people.
ContributorsGalvan, Brigitte Magdalena (Author) / Doty, Roxanne (Thesis director) / Magaña, Lisa (Committee member) / School of Politics and Global Studies (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05
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Effect of Threat, Costly Signaling, and Religion on Trust Decisions

Description
Trust was measured for a target profile that varied the target's religion and costly signaling behavior. Subjects were primed with a threat, romance, or neutral response previous to viewing the profile to determine if this had any effect on their trust ratings of the target. Participants were drawn from MTurk…

Trust was measured for a target profile that varied the target's religion and costly signaling behavior. Subjects were primed with a threat, romance, or neutral response previous to viewing the profile to determine if this had any effect on their trust ratings of the target. Participants were drawn from MTurk with ages ranging from 18 to 75 (M= 33.2) and various religious backgrounds (including 210 Christians, 190 atheists/agnostics, and 92 other religious believers). Participants were presented with the threat, romance, or neutral vignette, shown the target profile, and asked to rate the target's trustworthiness. There was no main effect of the vignette condition (p = .088) or costly signaling (p = .099) on the target's trustworthiness. There was a main effect of target religion (p = .006) wherein the Muslim target was trusted more than the Catholic target. These findings do not replicate previous findings on religion, costly signaling, and trust.
ContributorsBesaw, Courtney Michelle (Author) / Cohen, Adam (Thesis director) / Brewer, Gene (Committee member) / School of Human Evolution and Social Change (Contributor) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
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Do you really need a break? Assessing the effect of taking breaks on performance in sustained attention tasks

Description
This study is a replication of the investigation titled “Pupillary correlates of lapses of sustained attention,” which examined if measuring pupil diameters was an effective way of assessing one’s level of attention (Unsworth and Robison, 2016). The original study had thirty-nine participants undergo 160 trials of a simple reaction time…

This study is a replication of the investigation titled “Pupillary correlates of lapses of sustained attention,” which examined if measuring pupil diameters was an effective way of assessing one’s level of attention (Unsworth and Robison, 2016). The original study had thirty-nine participants undergo 160 trials of a simple reaction time task, as well as responding to thought probes to self-report how focused they are on the task. The current study would keep similar methods, but introduce minute-long breaks, group spaced throughout the investigation. The prediction of this study is that the pupillary responses will decrease until the break, then the pupil diameter would return to baseline. This would indicate that the individual would have renewed his/her focus after taking a break.
ContributorsBrown, Faith (Author) / Brewer, Gene (Thesis director) / Robinson, Mathew (Committee member) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
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Effects of Comorbid Anxiety on Working Memory, Behavioral Inhibition, and Sustained Attention Performance among Children Diagnosed with ADHD

Description

ADHD is a neurodevelopmental disorder associated with a high rate of comorbidity with anxiety disorders (25-34%). Children with ADHD experience serious adverse outcomes secondary to impairment in executive function, particularly within the domain of working memory (WM), behavioral inhibition (BI), and sustained attention (SA). While executive function deficits in ADHD…

ADHD is a neurodevelopmental disorder associated with a high rate of comorbidity with anxiety disorders (25-34%). Children with ADHD experience serious adverse outcomes secondary to impairment in executive function, particularly within the domain of working memory (WM), behavioral inhibition (BI), and sustained attention (SA). While executive function deficits in ADHD are well documented, whether and how comorbid anxiety affects cognitive performance are equivocal. One potential explanation is that most studies examine linear relations, yet evidence suggests that anxiety affects performance in a non-linear (quadratic) manner, consistent with the the Yerkes-Dodson Law. The aim of this study was to investigate whether 1) children with ADHD show deficits in WM, BI, and SA relative to typically developing children, 2) comorbid anxiety displays a linear or nonlinear relationship with WM, BI, and SA performance among children with ADHD and 3) between group differences in cognitive performance vary based on levels of anxiety. Linear and non-linear relations between anxiety and cognitive performance were assessed in a sample of 54 boys diagnosed with ADHD and 50 typically developing boys. Anxiety was assessed across dimensions and raters. Results indicate rater and domain-specific effects of comorbid anxiety on cognitive performance. Non-linear relations between children’s self-rated physiological anxiety and Phonological working memory (PHWM), Visuospatial working memory (VSWM), and the Central Executive (CE) were found. Non-linear relations between parent-rated anxiety and PHWM and the CE were also found. However, no significant linear or non-linear effects of anxiety on BI and SA were found. The results indicate that children with moderate self-rated and parent-rated anxiety performed better on WM measures relative to those with low and high levels of self-rated and parent-rated anxiety. The present study was the first to examine and document non-linear effects of anxiety on cognitive performance among children diagnosed with ADHD. Given the results, clinicians should continue to assess anxiety during diagnostic screening in ADHD samples. Treatments should focus on compensating for CE abilities and mitigating high levels of anxiety as it may further impair WM.
ContributorsRivard, Ashley (Author) / Friedman, Lauren (Thesis director) / Corbin, William (Committee member) / Brewer, Gene (Committee member) / Barrett, The Honors College (Contributor) / Department of Psychology (Contributor) / School of Life Sciences (Contributor)
Created2022-05