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- All Subjects: Cognitive Psychology
Description
An emerging body of literature suggests that humans likely have multiple threat avoidance systems that enable us to detect and avoid threats in our environment, such as disease threats and physical safety threats. These systems are presumed to be domain-specific, each handling one class of potential threats, and previous research generally supports this assumption. Previous research has not, however, directly tested the domain-specificity of disease avoidance and self-protection by showing that activating one threat management system does not lead to responses consistent only with a different threat management system. Here, the domain- specificity of the disease avoidance and self-protection systems is directly tested using the lexical decision task, a measure of stereotype accessibility, and the implicit association test. Results, although inconclusive, more strongly support a series of domain-specific threat management systems than a single, domain- general system
ContributorsAnderson, Uriah Steven (Author) / Kenrick, Douglas T. (Thesis advisor) / Shiota, Michelle N. (Committee member) / Neuberg, Steven L. (Committee member) / Becker, David V (Committee member) / Arizona State University (Publisher)
Created2011
Description
In most of the work using event-related potentials (ERPs), researchers presume the function of specific components based on the careful manipulation of experimental factors, but rarely report direct evidence supporting a relationship between the neural signal and other outcomes. Perhaps most troubling is the lack of evidence that ERPs correlate with related behavioral outcomes which should result, at least in part, from the neural processes that ERPs capture. One such example is the NoGo-N2 component, an ERP component elicited in Go/NoGo paradigms. There are two primary theories regarding the functional significance of this component in this context: that the signal represents response inhibition and that the component reflects conflict. In this paper, a trial-level method of analysis for the relationship between ERP component potentials and downstream behavioral outcomes (in this case, response accuracy) using a multi-level modeling framework is proposed to provide discriminatory evidence for one of these theories. Following a description of the research on the NoGo-N2, preliminary data supporting the conflict monitoring theory are presented, noting important limitations. Next, an EEG simulation study is presented in which NoGo-N2 data are generated with a known relationship to fabricated reaction time data, showing that, with added levels of complexity and noise within the data, the MLM approach is consistently successful at extracting the known relationships that occur in real NoGo-N2 data. Next, using independent components analysis (ICA) to extract spatiotemporal components that best represent the signal of interest, a well-powered analysis of the relationship between the NoGo-N2 and response accuracy is used to provide strong discriminatory evidence for the conflict monitoring theory of the NoGo-N2. Finally, implications for the NoGo-N2, as well as all ERP components, are discussed with a focus on how this approach can and should be used. the paper concludes with potential expansions of this approach to areas beyond identifying the function of ERP components.
ContributorsHampton, Ryan Scott (Author) / Varnum, Michael E.W. (Thesis advisor) / Shiota, Michelle N. (Committee member) / Brewer, Gene A. (Committee member) / Blais, Chris (Committee member) / Arizona State University (Publisher)
Created2019
Description
Past research has focused on the important role humor plays in interpersonal relationships; however, researchers have also identified intrapersonal applications of humor, showing that people often use humor to alleviate negative affect, and that humor has generally been found to beneficially influence mental health. The purpose of this study is to examine whether humor-based coping can be utilized as an intrapersonal tool to aid or facilitate creative thinking and problem solving when faced with a distressing situation. The current study posits reduced rumination as the mechanism by which humor facilitates creativity. To measure creativity, a task was devised that had individuals brainstorm under some distress; participants were asked to recall and describe an ongoing, unresolved problem they were facing, followed by a rumination induction, as rumination is characterized by perseverative thoughts that hinder constructive action. After the rumination induction, participants were randomly assigned to a control condition or either of two emotion regulation conditions: positive reappraisal or humor-based reappraisal. Following this, participants were asked to complete an “alternate solutions” task, based on Guilford’s Alternate Uses Task, generating solutions for their own unresolved problem. Results of the study showed that the use of humor was indeed related to a decrease in rumination, but that the humor condition did not outperform either control condition on any measure of creativity (performing worse in some cases). Limits of this study and future directions are discussed.
ContributorsPages, Erika (Author) / Shiota, Michelle N. (Thesis advisor) / Kenrick, Douglas T. (Committee member) / Varnum, Michael E.W. (Committee member) / Arizona State University (Publisher)
Created2019