Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 5 of 5
Full-Text Articles in Entire DC Network
Neurobiology Of Human Navigation Strategies In The Virtual Morris Water Task, Monica Goncalves-Garcia
Neurobiology Of Human Navigation Strategies In The Virtual Morris Water Task, Monica Goncalves-Garcia
Psychology ETDs
Strategies of navigation is a topic that has been investigated for decades and is still not well-understood. Organisms learn to navigate by using self-generated cues, distal cues, and proximal cues, however, how the different frames of reference are interpreted by different areas of the brain and translated into behavior is not clear. Animal studies have provided evidence for a preference for navigation by following a direction in the environment over place learning. This study investigated the performance of adolescents (mean age: 13.89) in a virtual version of the Morris Water Task with a probe trial manipulation attempting to categorize people …
Alterations In Resting State Functional Connectivity Associated With Alcohol Use Severity And Impulsivity In A Community Sample, Elena R. Stein
Alterations In Resting State Functional Connectivity Associated With Alcohol Use Severity And Impulsivity In A Community Sample, Elena R. Stein
Psychology ETDs
Alcohol Use Disorder (AUD) is characterized by neurocognitive and behavioral impairments including the multidimensional construct of impulsivity. Increased impulsivity is both a risk factor for, and a consequence of problematic alcohol use. Individuals with AUD exhibit alterations in neural circuitry when compared to those who do not have AUD. These circuit-level changes in AUD may underlie the difficulties that these individuals experience with heightened impulsivity. The present study uses data-driven resting state functional connectivity (rsFC) methodology to examine the differences in intrinsic functional networks between individuals with AUD and those who are social drinkers (SD). Participants in this secondary data …
Gray Matter Correlates Of Emotional Intelligence In Incarcerated Males, Devin Marie Ulrich
Gray Matter Correlates Of Emotional Intelligence In Incarcerated Males, Devin Marie Ulrich
Psychology ETDs
Emotional intelligence (EI) is form of social intelligence that is important for navigating one’s social environment. Deficits in these abilities have been associated negative psychological outcomes such as anxiety, substance use, and aggression. Here, we extend current literature that suggests that EI is correlated with gray matter volume (GMV) in limbic regions (e.g. insula ventromedial prefrontal cortex, anterior cingulate, and cerebellum) in healthy samples, by using voxel-based morphometry (VBM) to assess the relationship between GMV and EI. In study 1, emotional intelligence was positively correlated with GMV in the cerebellum and anterior cingulate cortex in a sample of incarcerated adult …
Functional Neural Connectivity Associated With Moral Processing In Healthy And Antisocial Samples, Samantha Jean Fede
Functional Neural Connectivity Associated With Moral Processing In Healthy And Antisocial Samples, Samantha Jean Fede
Psychology ETDs
Although research finds that brain abnormalities during moral decisions underlie traits that lead to crime, understanding of these neural dynamics is limited. Here we use two samples to explore the role network engagement and components during moral processing. We used independent component analysis and functional network connectivity analysis to examine hemodynamic response during an fMRI task of moral processing. Eighty-four community and 539 incarcerated adult men and women participated; MANCOVA and machine learning algorithms were used to identify individual and group differences in both samples. We found patterns of neural engagement and connectivity consistent with proposed models of moral cognition …
Relationship Between Structure And Functional Connectivity Within The Default Mode Network, Andrei A. Vakhtin
Relationship Between Structure And Functional Connectivity Within The Default Mode Network, Andrei A. Vakhtin
Psychology ETDs
We proposed a novel measure of conceptualizing dynamic functional network connectivity (FNC) in the human brain using flexibility of functional connectivity (fFC), which captures the variance of functional connectivity across time. In task-free fMRI scans (N = 122), this measure was demonstrated to correspond to the underlying structural connectivity (SC) within the default mode network (DMN), while static functional connectivity (sFC) did so to a relatively low degree. As SC likely does not develop to facilitate task-free brain function, but rather to integrate information during cognitive engagement, we argue that fFC can estimate the potential functional connectivity exhibited outside of …