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Experimental Analysis of Behavior Commons™
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- Discipline
- Keyword
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- Alcohol usage (1)
- Balloon Analogues Risk Task (1)
- Bias (1)
- Cellularity (1)
- Clustering analysis (1)
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- Cognition (1)
- Diffusion-basis-spectrum-imaging (1)
- EMA (1)
- Early life stress (1)
- Experimental evolution (1)
- HIV (1)
- Iowa Gambling Task (1)
- Magnetic resonance imaging (1)
- Neuroinflammation (1)
- Overshadowing (1)
- Physical impairment (1)
- Physical pain (1)
- Preference (1)
- Qualtrics (1)
- Risky decision-making (1)
- Salience (1)
- Self-awareness (1)
- Self-focused processing (1)
- Sex risk behavior (1)
- Social networking sites (1)
- TigerAware (1)
- Working memory (1)
- Publication Type
Articles 1 - 4 of 4
Full-Text Articles in Experimental Analysis of Behavior
Hiv And Early Life Stress On Neuroimaging And Risky Behavior, Paola Garcia Egan
Hiv And Early Life Stress On Neuroimaging And Risky Behavior, Paola Garcia Egan
Dissertations
This study examined the interactive effects of early life stress (ELS) and HIV on brain morphometry, diffusion-basis-spectrum-imaging (DBSI), risky decision-making, and sex-risk behavior. 122 people with HIV (PWH) and 113 people without HIV (PWoH), free of major psychiatric illness and neurological confounds, were stratified into high (≥ 3 events) vs. low (< 3 events) ELS [PWoH/low ELS (n = 57), PWoH/high ELS (n =56), PWH/low ELS (n = 43), PWH/high ELS (n = 79)] and underwent structural magnetic resonance imaging, DBSI, neuropsychological, and risky-behavior assessment; all PWH were virologically controlled. Compared to PWoH, PWH had smaller orbitofrontal cortex (OFC), parietal lobes, insula, caudate and anterior cingulate. No ELS effects were detected in volumetric measures. Significant interactions were found between HIV serostatus and ELS on the OFC and on cellularity of the inferior fronto-occipital fasciculus after multiple comparisons adjustment. Specifically, PWH/high ELS exhibited significantly smaller OFC and PWoH/high ELS show significantly larger OFC than the other groups. PWoH/high ELS exhibited higher DBSI cellularity (neuroinflammation proxy) of the inferior-occipital-fasciculus compared to PWoH/high ELS. Regardless of HIV status, executive function moderated the relationship between the OFC and sex-risk behavior such that individuals within the sample who performed above average on a measure of executive function and had a larger OFC reported fewer sex partners in past six months than individuals with smaller volumes. No interaction was found between HIV serostatus and ELS on risky behavior measures. Clustering analyses defined ELS subgroups in PWH that were determined by demographic characteristics, duration of infection, recent CD4+ T-cell count, nadir CD4+ T-cell count and high/low ELS.Even in PWH that are virologically controlled, without major current psychiatric comorbidities, there is evidence of a synergistic impact of ELS and HIV on OFC volumes. Higher volumes in the OFC were detrimental when associated with lower executive function scores or advantageous when associated with higher executive function. Findings suggest that ELS is associated with different brain signatures among PWoH and virally suppressed PWH. However, ELS was not directly associated with risky behaviors, and subgroups in PWH were characterized by demographic variables, past substance use and HIV clinical variables.
Selfies And The Self: The Influence Of Instagram Posting On Self And Cognition, Giovanni Castillo
Selfies And The Self: The Influence Of Instagram Posting On Self And Cognition, Giovanni Castillo
Theses
Research on Social Networking Sites (SNS) has shown a variety of both beneficial and detrimental psychological and cognitive outcomes associated with high frequency usage. We conducted an online study consisting of a series of questionnaires and a working memory task to explore the relationship between Instagram use intensity and cognition. The present study first investigated the relationship between Instagram (IG) use intensity, rumination, and cognitive failures. We randomly assigned participants into a selfie-posting, selfie-sending, or likes/comments reporting condition to determine whether selfie-posting behavior affects working memory performance. While we did not find significant associations between IG use intensity, rumination, and …
The Effects Of Overshadowing In Drosophila Melanogaster With Experimentally Evolved Preference, Jill Lee
The Effects Of Overshadowing In Drosophila Melanogaster With Experimentally Evolved Preference, Jill Lee
Theses
As seen in decades of psychology research, preferences play a major role in driving the decision-making process in both humans and animals. Researchers have advocated for using the technique of experimental evolution as a way to address some of the foundational questions on preferences. These preferences can also affect what is later learned and how well new experiences are learned. Salience is usually mentioned as an important component of what could influence preferences. Animals such as Drosophila melanogaster, that lay eggs without any additional maternal or paternal care, it is important to be selective when deciding where to lay …
Analyzing The Variable Pain, Payton Ruediger, Ryan W. Carpenter, Melissa Nance
Analyzing The Variable Pain, Payton Ruediger, Ryan W. Carpenter, Melissa Nance
Undergraduate Research Symposium
This presentation is a thorough analysis of participant physical pain and physical impairment within the given study. This data was conducted through an EMA study. The smartphone apps TigerAware and Qualtrics were used to give participants surveys throughout the course of ten days. The participants were undergraduate students at UMSL who received extra credit for participating in the study. Out of the 126 participants, 13 were male and 113 female. The surveys focused on comparing the relationship between alcohol usage and other variables. These surveys had questions relating to alcohol usage, marijuana usage, mood, pain, and questions about daily functioning. …