Social and Behavioral Sciences Commons^™

Deficits In Audiovisual Speech Perception In Normal Aging Emerge At The Level Of Whole-Word Recognition., Ryan A Stevenson, Caitlin E Nelms, Sarah H Baum, Lilia Zurkovsky, Morgan D Barense, Paul A Newhouse, Mark T Wallace

Brain and Mind Institute Researchers' Publications

Over the next 2 decades, a dramatic shift in the demographics of society will take place, with a rapid growth in the population of older adults. One of the most common complaints with healthy aging is a decreased ability to successfully perceive speech, particularly in noisy environments. In such noisy environments, the presence of visual speech cues (i.e., lip movements) provide striking benefits for speech perception and comprehension, but previous research suggests that older adults gain less from such audiovisual integration than their younger peers. To determine at what processing level these behavioral differences arise in healthy-aging populations, we administered …

Prevalence Of Increases In Functional Connectivity In Visual, Somatosensory And Language Areas In Congenital Blindness., Lizette Heine, Mohamed A Bahri, Carlo Cavaliere, Andrea Soddu, Steven Laureys, Maurice Ptito, Ron Kupers

Brain and Mind Institute Researchers' Publications

There is ample evidence that congenitally blind individuals rely more strongly on non-visual information compared to sighted controls when interacting with the outside world. Although brain imaging studies indicate that congenitally blind individuals recruit occipital areas when performing various non-visual and cognitive tasks, it remains unclear through which pathways this is accomplished. To address this question, we compared resting state functional connectivity in a group of congenital blind and matched sighted control subjects. We used a seed-based analysis with a priori specified regions-of-interest (ROIs) within visual, somato-sensory, auditory and language areas. Between-group comparisons revealed increased functional connectivity within both the …

Nicotine Receptors Mediating Sensorimotor Gating And Its Enhancement By Systemic Nicotine., Farena Pinnock, Daniel Bosch, Tyler Brown, Nadine Simons, John R Yeomans, Cleusa Deoliveira, Susanne Schmid

Brain and Mind Institute Researchers' Publications

Prepulse inhibition (PPI) of startle occurs when intensity stimuli precede stronger startle-inducing stimuli by 10-1000 ms. PPI deficits are found in individuals with schizophrenia and other psychiatric disorders, and they correlate with other cognitive impairments. Animal research and clinical studies have demonstrated that both PPI and cognitive function can be enhanced by nicotine. PPI has been shown to be mediated, at least in part, by mesopontine cholinergic neurons that project to pontine startle neurons and activate muscarinic and potentially nicotine receptors (nAChRs). The subtypes and anatomical location of nAChRs involved in mediating and modulating PPI remain unresolved. We tested the …

Prolonged In Vivo Retention Of A Cathepsin D Targeted Optical Contrast Agent In A Mouse Model Of Alzheimer's Disease., Jonatan A Snir, Mojmir Suchy, Keith St Lawrence, Robert H E Hudson, Stephen H Pasternak, Robert Bartha

Brain and Mind Institute Researchers' Publications

BACKGROUND: Cathepsin D (CatD) is a lysosomal protease that is elevated early in Alzheimer's disease (AD). We have previously developed a Targeted contrast agent (CA) to detect CatD activity in vivo, consisting of a magnetic resonance imaging/fluorescent moiety linked to a cell penetrating peptide (CPP) by means of a CatD cleavage site and have demonstrated its uptake in the brain of an AD mouse model.

OBJECTIVE: The purpose of this study was to characterize the in vivo retention of a near infra-red fluorescent dye labeled version of this CA.

METHODS: Six adult C57Bl/6 wild-type mice and six adult 5XFAD transgenic …

High-Field Functional Imaging Of Pitch Processing In Auditory Cortex Of The Cat., Blake E. Butler, Amee J Hall, Stephen G Lomber

Brain and Mind Institute Researchers' Publications

The perception of pitch is a widely studied and hotly debated topic in human hearing. Many of these studies combine functional imaging techniques with stimuli designed to disambiguate the percept of pitch from frequency information present in the stimulus. While useful in identifying potential "pitch centres" in cortex, the existence of truly pitch-responsive neurons requires single neuron-level measures that can only be undertaken in animal models. While a number of animals have been shown to be sensitive to pitch, few studies have addressed the location of cortical generators of pitch percepts in non-human models. The current study uses high-field functional …

Automatic Segmentation Of The Hippocampus For Preterm Neonates From Early-In-Life To Term-Equivalent Age., Ting Guo, Julie L Winterburn, Jon Pipitone, Emma G Duerden, Min Tae M Park, Vann Chau, Kenneth J Poskitt, Ruth E Grunau, Anne Synnes, Steven P Miller, M Mallar Chakravarty

Brain and Mind Institute Researchers' Publications

INTRODUCTION: The hippocampus, a medial temporal lobe structure central to learning and memory, is particularly vulnerable in preterm-born neonates. To date, segmentation of the hippocampus for preterm-born neonates has not yet been performed early-in-life (shortly after birth when clinically stable). The present study focuses on the development and validation of an automatic segmentation protocol that is based on the MAGeT-Brain (Multiple Automatically Generated Templates) algorithm to delineate the hippocampi of preterm neonates on their brain MRIs acquired at not only term-equivalent age but also early-in-life.

METHODS: First, we present a three-step manual segmentation protocol to delineate the hippocampus for preterm …

Are There Right Hemisphere Contributions To Visually-Guided Movement? Manipulating Left Hand Reaction Time Advantages In Dextrals., David P Carey, E Grace Otto-De Haart, Gavin Buckingham, H Chris Dijkerman, Eric L Hargreaves, Melvyn A Goodale

Brain and Mind Institute Researchers' Publications

Many studies have argued for distinct but complementary contributions from each hemisphere in the control of movements to visual targets. Investigators have attempted to extend observations from patients with unilateral left- and right-hemisphere damage, to those using neurologically-intact participants, by assuming that each hand has privileged access to the contralateral hemisphere. Previous attempts to illustrate right hemispheric contributions to the control of aiming have focussed on increasing the spatial demands of an aiming task, to attenuate the typical right hand advantages, to try to enhance a left hand reaction time advantage in right-handed participants. These early attempts have not been …

Stability Of Self-Referent Encoding Task Performance And Associations With Change In Depressive Symptoms From Early To Middle Childhood., Brandon L Goldstein, Elizabeth P Hayden, Daniel N Klein

Brain and Mind Institute Researchers' Publications

Depressed individuals exhibit memory biases on the self-referent encoding task (SRET), such that those with depression exhibit poorer recall of positive, and enhanced recall of negative, trait adjectives (referred to as positive and negative processing biases). However, it is unclear when SRET biases emerge, whether they are stable, and if biases predict, or are predicted by, depressive symptoms. To address this, a community sample of 434 children completed the SRET and a depressive symptoms measure at ages 6 and 9. Negative and positive processing exhibited low, but significant, stability. At ages 6 and 9, depressive symptoms correlated with higher negative, …

Fusion Analysis Of First Episode Depression: Where Brain Shape Deformations Meet Local Composition Of Tissue., Mahdi Ramezani, Purang Abolmaesumi, Amir Tahmasebi, Rachael Bosma, Ryan Tong, Tom Hollenstein, Kate Harkness, Ingrid Johnsrude

Brain and Mind Institute Researchers' Publications

Computational neuroanatomical techniques that are used to evaluate the structural correlates of disorders in the brain typically measure regional differences in gray matter or white matter, or measure regional differences in the deformation fields required to warp individual datasets to a standard space. Our aim in this study was to combine measurements of regional tissue composition and of deformations in order to characterize a particular brain disorder (here, major depressive disorder). We use structural Magnetic Resonance Imaging (MRI) data from young adults in a first episode of depression, and from an age- and sex-matched group of non-depressed individuals, and create …

An Fmri Comparison Of Neural Activity Associated With Recognition Of Familiar Melodies In Younger And Older Adults., Ritu Sikka, Lola L Cuddy, Ingrid S Johnsrude, Ashley D Vanstone

Brain and Mind Institute Researchers' Publications

Several studies of semantic memory in non-musical domains involving recognition of items from long-term memory have shown an age-related shift from the medial temporal lobe structures to the frontal lobe. However, the effects of aging on musical semantic memory remain unexamined. We compared activation associated with recognition of familiar melodies in younger and older adults. Recognition follows successful retrieval from the musical lexicon that comprises a lifetime of learned musical phrases. We used the sparse-sampling technique in fMRI to determine the neural correlates of melody recognition by comparing activation when listening to familiar vs. unfamiliar melodies, and to identify age …

Ego Depletion Interferes With Rule-Defined Category Learning But Not Non-Rule-Defined Category Learning., John P Minda, Rahel Rabi

Brain and Mind Institute Researchers' Publications

Considerable research on category learning has suggested that many cognitive and environmental factors can have a differential effect on the learning of rule-defined (RD) categories as opposed to the learning of non-rule-defined (NRD) categories. Prior research has also suggested that ego depletion can temporarily reduce the capacity for executive functioning and cognitive flexibility. The present study examined whether temporarily reducing participants' executive functioning via a resource depletion manipulation would differentially impact RD and NRD category learning. Participants were either asked to write a story with no restrictions (the control condition), or without using two common letters (the ego depletion condition). …

The Capacity For Mobilization In Project-Based Cultural Work: A Case Of The Video Game Industry, Marie-Josee Legault, Johanna Weststar

Management and Organizational Studies Publications

Though dissatisfied with some management practices and working conditions, like most high-tech knowledge workers, videogame developers remain reluctant towards unionization. This article examines the factors of collective action among developers as an example, using data gathered from an international survey and interviews. We conclude that developers meet some conditions conducive to collective action but face many obstacles as well, both to collective action and to unionization proper. This does not lead us to share the belief of a decline in collective action, but rather raises the issue of conflating union action and collective action. Our study reveals how unsuited the …

Work Hour Congruence: The Effect On Job Satisfaction And Absenteeism, Bryon Y. Lee, Jing Wang, Johanna Weststar

Management and Organizational Studies Publications

This study examines the effect of work hour congruence on employee job satisfaction and absenteeism using a large, longitudinal sample from the Canadian Workplace and Employee Survey (WES). An employee is said to have work hour congruence when they actually work the number of hours that they desire. Results indicate a difference between employees who desire more hours and those who desire fewer hours: employee desire for and receipt of more hours was related to positive changes in job satisfaction, while employee desire for and receipt of fewer hours was related to reduced absenteeism. In addition, the results suggest that …

Studying Treatment Intensity: Lessons From Two Preliminary Studies, Nicole Neil, Emily A. Jones

Education Publications

Determining how best to meet the needs of learners with Down syndrome requires an approach to intervention delivered at some level of intensity. How treatment intensity affects learner acquisition, maintenance, and generalization of skills can help optimize the efficiency and cost effectiveness of interventions. There is a growing body of research on the effects of treatment intensity but almost no systematic study of it with children with Down syndrome, providing little guidance about how to approach the study of intensity. In two preliminary studies we manipulated different aspects of the dose of treatment intensity and measured effects on skill acquisition …

Attention During Visual Search: The Benefit Of Bilingualism, Deanna Friesen, Vered Latman, Alejandra Calvo, Ellen Bialystok

Education Publications

Recent research has produced mixed results about the existence of a bilingual executive control advantage in young adults. The current study manipulated both task demands and task difficulty to investigate the conditions under which a bilingual advantage may be observed during a visual attention task. Bilingual and monolingual young adults performed visual search tasks in which they determined whether a target shape was present amid distractor shapes. In the feature searches, the target (e.g., green triangle) differed on a single dimension (e.g., color) from the distractors (e.g., yellow triangles); in the conjunction searches, two different types of distractors (e.g., pink …

Obesity-Related Behaviors Among Poor Adolescents And Young Adults: Is Social Position Associated With Risk Behaviors?, Miranda Lucia Ritterman Weintraub, Lia C. Fernald, Elizabeth Goodman, Sylvia Guendelman, Nancy E. Adler

This cross-sectional study examines multiple dimensions of social position in relation to obesity-related behaviors in an adolescent and young adult population. In addition to using conventional measures of social position, including parental education and household expenditures, we explore the usefulness of three youth-specific measures of social position – community and society subjective social status and school dropout status. Data are taken from a 2004 house-to-house survey of urban households within the bottom 20th percentile of income distribution within seven states in Mexico. A total of 5,321 Mexican adolescents, aged 12–22 years, provided information on obesity-related behaviors (e.g., diet, physical activity, …

Social (Re)Construction Of Place In Columbia, South Carolina, Colby King

Sociology Faculty Publications

The debate about the confederate flag on the grounds of the South Carolina State House reminds us of the power of the symbols we put in our places, and the way we talk about those symbols and those places.

Making Progress In Idaho State Budgeting: The Sequel, Dick Kinney

Political Science Faculty Publications and Presentations

This paper examines Idaho state budgeting decisions for Fiscal Year 2014 and assesses what progress has been made to return to the state’s revenue and spending levels before the hard times in 2009 and 2010 (Kinney 2010; Kinney 2011). After briefly describing Idaho’s population and politics, the report discusses the state’s economic and General Fund revenue contexts for budget decision making. It then analyzes the governor’s budget and the legislature’s appropriations and considers two important potential impacts of these decisions. Progress in Idaho state budgeting continued to be mixed. The state economy generally gained since the recession years although prospects …

The Theological Foundations Of Religious Liberty In The Thought Of John Locke And James Madison, Edward M. Yager

Commonwealth Review of Political Science

Religious liberty is an important human right supported by both religious and secular m:guments. This work explores John Locke's Letter Concerning Toleration and James Madison's Memorial and Remonstrance and identifies a common theological or religious argument supporting religions liberty as the requisite means to satisfy the duties of conscience to the Creator. Since individual duty and accountability to God is a shared premise among theistic faith traditions, this approach to advancing religions liberty and religious pluralism may have broader appeal and utility to reformers in faith traditions not especially responsive to secular arguments.

Religious And Spiritual Diversity Training In Clinical Psychology Doctoral Programs: Do Explicitly Christian Programs Differ From Other Programs?, Mark R. Mcminn, Michael J. Vogel, M Elizabeth Hall, Alexis D. Abernethy, Ryan Birch, Timofey Galuza, Jacqi Rodriguez, Kathryn Putman

Faculty Publications - Doctor of Psychology (PsyD) Program

The American Psychological Association (APA) accredits several explicitly Christian doctoral programs in clinical psychology. To what extent do these programs offer training in religious and spiritual diversity that students may nor receive at orher APA-accredited programs? A total of 353 students from 5 explicitly Christian programs were surveyed using the same questionnaire used in a more general national sample of APA-accredited doctoral programs a year previously. Students in explicitly Christian programs reported receiving more training in religious and spiritual diversity and more training in advanced competencies regarding religious and spiritual issues in professional work d1an students in the general sample …

Oil, Corruption And Foreign Direct Investment, Luisa Melo, Michael A. Quinn

Economics Faculty Publications

This paper addresses how oil changes the corruption-foreign direct investment relationship. With the advantage of our panel data set, we are able to account for issues of endogeneity in the causality between foreign direct investment and corruption. We find that corruption has a negative impact on attracting foreign direct investment but this is mitigated based on the amount of oil the receiving country produces. Foreign direct investment inflows are found to reduce corruption in countries, but not if the receiving country is a major oil producer. Results show that poor countries without oil may be using institutional corruption to attract …

The Truth About Humans: The Decision To Adopt Dogs & Cats, Leann Stadtlander

2010-2016 Archived Posters

Millions of dogs and cats are adopted from animal shelters every year, however, little is known about why specific animals are adopted. This study examines the qualitative comments given by adopters of cats and dogs for selecting specific animals. Differences between the species and insights into human/animal interactions are discussed.

The Relationship Between Terrorism, Oil Prices, And Airline Profitability, Ubirathan Miranda

2010-2016 Archived Posters

Increase in the price of petroleum and terrorism negatively affect airline profitability. This quantitative study was an exploration of the relationship between terrorism, fuel price, and airline profitability. Airline financial and security archives were the data for this study. Results indicate that terrorism and fuel cost significantly predict profitability.

Downsizing The United States Air Force Security Forces: A Phenomenological Investigation, Winell De Mesa

2010-2016 Archived Posters

The United States Air Force has downsized an average of 10,000 personnel each year from 1990 to 2010. Despite this the mission remains the same, which causes an increase in workload to the remaining airmen. The results can be used by all leadership facing budgetary constraints and technology upgrades.

Effect Of Employee’S Life Events On Organizational Withdrawal Behaviors, Anthony H. Brown

2010-2016 Archived Posters

Research on the impact of employees’ life events as possible effects on organizational withdrawal behaviors (OWBs) unveiled that employees’ personal distractions ultimately could lead them to voluntary or involuntary turnover. Employees’ better health and economic status were factors that impacted employees' currently working.

Associations Among Ethnicity, Gender, Age, Age Of First Drink, And Drinking Behavior Among High School Students, Ricky Gujral

2010-2016 Archived Posters

Moderation management theory was employed to assess whether gender, ethnicity, age, and age of first drink were associated with drinking among adolescents. The statistically significant model distinguished between adolescents who reported moderate versus binge drinking. Age of first drink made a statistically significant main effect contribution to the model.

Alternative Timing Of Carbaryl Treatments For Protecting Lodgepole Pine From Mortality Attributed To Mountain Pine Beetle, Christopher J. Fettig, A Steve Munson, Kenneth E. Gibson

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Carbaryl is regarded among the most effective, economically viable, and ecologically-compatible insecticides available for protecting conifers from bark beetle attack in the western United States. Treatments are typically applied in spring prior to initiation of bark beetle flight for that year. We evaluated the efficacy of spring and fall applications for protecting individual lodgepole pine, Pinus contorta Dougl. ex Loud, from mortality attributed to mountain pine beetle, Dendroctonus ponderosae Hopkins, the most notable forest insect pest in western North America. Both spring and fall treatments of 2.0% a.i. carbaryl (Sevin® SL) were efficacious for two field seasons, while results from …

Development Of The Dori-Tbi: An Investigation To Develop A New Screening Measure To Determine Consultation With A School-Based Brain Injury Resource Team, Doriann Marie Adragna

Electronic Theses and Dissertations

Brain injury is the leading cause of disability and death in children in the United States. Student re-entry into the school setting following a traumatic brain injury is crucial to student success. Multidisciplinary teams within the school district comprised of individuals with expertise in brain injury are ideal in implementing student specific treatment plans given their specialized training and wide range of expertise addressing student needs. Therefore, the purpose of this study is to develop and initially validate a quantitative instrument that school personnel can use to determine if a student, identified as having a traumatic brain injury, will benefit …

‘Questions About Dawlah. Dm Me, Plz.’ The Sock Puppet Problem In Online Terrorism Research, Laura Huey, Hina Kalyal

Sociology Publications

This paper explores the problem of deception in online terrorism research. While conducting research into the growing phenomenon of female migration to Islamic State-held territory by Western females, we began following a Twitter account exhibiting suspicious activity. The account owner – believed to be a Canadian teenage female – indicated interest in learning more about joining the IS. We tracked this account for three weeks in order to discover more information about its activities and thus to develop a set of key indicators that might help predict future migration risk. We subsequently learned it was a fake account (‘sock puppet’) …

The Changing Health Of Canadian Grandparents, Rachel Margolis, Natalie Iciaszczyk

Sociology Publications

Fertility postponement and mortality decline are shifting the demography of the grandparent population in Canada. The ways in which the aging of the grandparent population affects families depends in large part on the health of grandparents. In this article, we document the aging of Canadian grandparents between 1985 and 2011. However, despite being older, grandparents are healthier, signaling that the compression of morbidity is outpacing the postponement of grandparenthood. This shift is partly due to the higher educational attainment of this population and partly due to secular improvements in health over time. The improved health of grandparents in Canada has …