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Articles 61 - 90 of 137

Full-Text Articles in Behavior and Behavior Mechanisms

Modeling Interactions Between Brain Function, Diet Adherence Behaviors, And Weight Loss Success, Amanda N. Szabo-Reed, Laura E. Martin, Jinxiang Hu, Hung-Wen Yeh, Joshua Powell, Rebecca J. Lepping, Trisha M. Patrician, Florance J. Breslin, Joseph E. Donnelly, Cary R. Savage Jan 2020

Modeling Interactions Between Brain Function, Diet Adherence Behaviors, And Weight Loss Success, Amanda N. Szabo-Reed, Laura E. Martin, Jinxiang Hu, Hung-Wen Yeh, Joshua Powell, Rebecca J. Lepping, Trisha M. Patrician, Florance J. Breslin, Joseph E. Donnelly, Cary R. Savage

Center for Brain, Biology, and Behavior: Faculty Publications

Summary

Introduction: Obesity is linked to altered activation in reward and control brain cir-cuitry; however, the associated brain activity related to successful or unsuccessful weight loss (WL) is unclear.

Methods: Adults with obesity (N = 75) completed a baseline functional magnetic res-onance imaging (fMRI) scan before entering a WL intervention (ie,3-month diet and physical activity [PA] program). We conducted an exploratory analysis to identify the contributions of baseline brain activation, adherence behavior patterns, and the asso-ciated connections to WL at the conclusion of a 3-month WL intervention. Food cue-reactivity brain regions were functionally identified using fMRI to index brain activation …


Males With Chronic Ankle Instability Demonstrate Deficits In Neurocognitive Function Compared To Control And Copers, Adam B. Rosen, Melanie L. Mcgrath, Arthur C. Maerlender Jan 2020

Males With Chronic Ankle Instability Demonstrate Deficits In Neurocognitive Function Compared To Control And Copers, Adam B. Rosen, Melanie L. Mcgrath, Arthur C. Maerlender

Center for Brain, Biology, and Behavior: Faculty Publications

The purpose of this study was to determine if there were neurocognitive deficits among controls, copers and those with chronic ankle instability (CAI). Participants included those without history of ankle injury (n = 14), ankle sprain copers (n = 13) and patients with self-reported CAI (n = 14). They completed a battery of valid and reliable computer-based neurocognitive tests. The differences between neurocognitive domain scores were compared across the Control, Coper and CAI groups. Patients with CAI had lower composite memory, visual memory and simple attention compared to controls. In males with CAI, large differences in memory and attention were …


Neural Bases Of Phonological And Semantic Processing In Early Childhood, Avantika Mathur, Douglas H. Schultz, Yingying Wang Dr. Jan 2020

Neural Bases Of Phonological And Semantic Processing In Early Childhood, Avantika Mathur, Douglas H. Schultz, Yingying Wang Dr.

Center for Brain, Biology, and Behavior: Faculty Publications

During the early period of reading development, children gain phonological (letter-to-sound mapping) and semantic knowledge (storage and retrieval of word meaning). Their reading ability changes rapidly, accompanied by learning-induced brain plasticity as they learn to read. This study aims at identifying the neural bases of phonological and semantic processing in early childhood by using a combination of univariate and multivariate pattern analysis. Nineteen typically developing children between the age of five and seven performed visual word-level phonological (rhyming) and semantic (related meaning) judgment tasks during functional magnetic resonance imaging scans. Our multivariate analysis showed that young children with good reading …


Neuroanatomy Of The Blackspotted Rockskipper, Entomacrodus Striatus, Pooja Dayal Jan 2020

Neuroanatomy Of The Blackspotted Rockskipper, Entomacrodus Striatus, Pooja Dayal

Williams Honors College, Honors Research Projects

Here I characterized the central neuroanatomy of the Blackspotted Rockskipper, Entomacrodus striatus, native to French Polynesia. The neuroanatomy of E. striatus has not been studied prior to this paper. I used several histology and antibody staining techniques to accomplish this, including Crystal Violet, immunohistochemistry, immunofluorescence, and Bielschowsky’s Silver Nitrate staining. This paper describes the most successful techniques used, identifies major structures in the species’ neuroanatomy, and also explains why studying E. striatus is important in the future of vertebrate research.


Genetic Taster Status As A Mediator Of Neural Activity And Swallowing Mechanics In Healthy Adults, Angela M. Dietsch, Ross M. Westemeyer, William G. Pearson Jr., Douglas H. Schultz Dec 2019

Genetic Taster Status As A Mediator Of Neural Activity And Swallowing Mechanics In Healthy Adults, Angela M. Dietsch, Ross M. Westemeyer, William G. Pearson Jr., Douglas H. Schultz

Center for Brain, Biology, and Behavior: Faculty Publications

As part of a larger study examining relationships between taste properties and swallowing, we assessed the influence of genetic taster status (GTS) on measures of brain activity and swallowing physiology during taste stimulation in healthy men and women. Twenty-one participants underwent videofluoroscopic swallowing study (VFSS) and functional magnetic resonance imaging (fMRI) during trials of high-intensity taste stimuli. The precisely formulated mixtures included sour, sweet-sour, lemon, and orange taste profiles and unflavored controls. Swallowing physiology was characterized via computational analysis of swallowing mechanics plus other kinematic and temporal measures, all extracted from VFSS recordings. Whole-brain analysis of fMRI data assessed blood …


Recent Trends, Current Research In Cyberpsychology: A Literature Review, Amarjit Kumar Singh, Pawan Kumar Singh Aug 2019

Recent Trends, Current Research In Cyberpsychology: A Literature Review, Amarjit Kumar Singh, Pawan Kumar Singh

Library Philosophy and Practice (e-journal)

Cyberpsychology refers to the study of the mind and behavior in the context of interactions with technology. It is an emerging branch, which has focused on the psychological aspects connected to the increasing presence and usages of technology in modern lives. This paper traces recent advancement and trends of Cyberpsychology is an emerging domain of knowledge and goes on the give a literature review of the same. An analysis of the recent research and literature covering 300 most relevant research papers from the period of 2012 to 15, August 2019 was conducted to determine and shape the research pattern based …


The Relationship Between Socioeconomic Status And White Matter Microstructure In Pre-Reading Children: A Longitudinal Investigation, Ola Ozernov-Palchik, Elizabeth S. Norton, Yingying Wang, Sara D. Beach, Jennifer Zuk, Maryanne Wolf, John D.E. Gabrieli, Nadine Gaab Jul 2019

The Relationship Between Socioeconomic Status And White Matter Microstructure In Pre-Reading Children: A Longitudinal Investigation, Ola Ozernov-Palchik, Elizabeth S. Norton, Yingying Wang, Sara D. Beach, Jennifer Zuk, Maryanne Wolf, John D.E. Gabrieli, Nadine Gaab

Center for Brain, Biology, and Behavior: Faculty Publications

Reading is a learned skill crucial for educational attainment. Children from families of lower socioeconomic status (SES) tend to have poorer reading performance and this gap widens across years of schooling. Reading relies on the orchestration of multiple neural systems integrated via specific white-matter pathways, but there is limited understanding about whether these pathways relate differentially to reading performance depending on SES background. Kindergarten white-matter FA and second-grade reading outcomes were investigated in an SES-diverse sample of 125 children. The three left-hemisphere white-matter tracts most associated with reading, and their right-hemisphere homologs, were examined: arcuate fasciculus (AF), superior longitudinal fasciculus …


Alterations In Cortical Activation Among Individuals With Chronic Ankle Instability During Single-Limb Postural Control, Adam B. Rosen, Jennifer M. Yentes, Melanie L. Mcgrath, Arthur C. Maerlender, Sara A. Myers, Mukul Mukherjee Jun 2019

Alterations In Cortical Activation Among Individuals With Chronic Ankle Instability During Single-Limb Postural Control, Adam B. Rosen, Jennifer M. Yentes, Melanie L. Mcgrath, Arthur C. Maerlender, Sara A. Myers, Mukul Mukherjee

Center for Brain, Biology, and Behavior: Faculty Publications

Context: Chronic ankle instability (CAI) is characterized by repetitive ankle sprains and perceived instability. Whereas the underlying cause of CAI is disputed, alterations in cortical motor functioning may contribute to the perceived dysfunction.

Objective: To assess differences in cortical activity during single-limb stance among control, coper, and CAI groups.

Design: Cross-sectional study.

Setting: Biomechanics laboratory.

Patients or Other Participants: A total of 31 individuals (10 men, 21 women; age = 22.3 ± 2.4 years, height = 169.6 ± 9.7 cm, mass = 70.6 ± 11.6 kg), who were classified into control (n = 13), coper (n = 7), and CAI …


The Relationship Between Biological And Psychosocial Risk Factors And Resting‐State Functional Connectivity In 2‐Monthold Bangladeshi Infants: A Feasibility And Pilot Study, Ted K. Turesky, Sarah K.G. Jensen, Xi Yu, Swapna Kumar, Yingying Wang, Danielle D. Sliva, Borjan Gagoski, Joseph Sanfilippo, Lilla Zöllei, Emma Boyd, Rashidul Haque, Shahria Hafiz Kakon, Nazrul Islam, William A. Petri Jr., Charles A. Nelson, Nadine Gaab Apr 2019

The Relationship Between Biological And Psychosocial Risk Factors And Resting‐State Functional Connectivity In 2‐Monthold Bangladeshi Infants: A Feasibility And Pilot Study, Ted K. Turesky, Sarah K.G. Jensen, Xi Yu, Swapna Kumar, Yingying Wang, Danielle D. Sliva, Borjan Gagoski, Joseph Sanfilippo, Lilla Zöllei, Emma Boyd, Rashidul Haque, Shahria Hafiz Kakon, Nazrul Islam, William A. Petri Jr., Charles A. Nelson, Nadine Gaab

Center for Brain, Biology, and Behavior: Faculty Publications

Childhood poverty has been associated with structural and functional alterations in the developing brain. However, poverty does not alter brain development directly, but acts through associated biological or psychosocial risk factors (e.g. malnutrition, family conflict). Yet few studies have investigated risk factors in the context of infant neurodevelopment, and none have done so in low‐resource settings such as Bangladesh, where children are exposed to multiple, severe biological and psychosocial hazards. In this feasibility and pilot study, usable resting‐state fMRI data were acquired in infants from extremely poor (n = 16) and (relatively) more affluent (n = 16) families in Dhaka, …


Dynamic Effects Of Habituation And Novelty Detection On Newborn Event Related Potentials, Cathryn S. Cortesa, Caitlin M Hudac, Dennis Molfese Jan 2019

Dynamic Effects Of Habituation And Novelty Detection On Newborn Event Related Potentials, Cathryn S. Cortesa, Caitlin M Hudac, Dennis Molfese

Center for Brain, Biology, and Behavior: Faculty Publications

Newborns habituate to repeated auditory stimuli, and discriminate syllables, generating opportunities for early language learning. This study investigated trial-by-trial changes in newborn electrophysiological responses to auditory speech syllables as an index of habituation and novelty detection. Auditory event-related potentials (ERPs) were recorded from 16 term newborn infants, aged 1–3 days, in response to monosyllabic speech syllables presented during habituation and novelty detection tasks. Multilevel models demonstrated that newborns habituated to repeated auditory syllables, as ERP amplitude attenuated for a late-latency component over successive trials. Subsequently, during the novelty detection task, earlyand late-latency component amplitudes decreased over successive trials for novel …


Concussion Competencies: A Training Model For School-Based Concussion Management, Arthur C. Maerlender, Jonathan D. Lichtenstein, Jennifer Parent-Nichols, Kate Higgins, Peggy Reisher Jan 2019

Concussion Competencies: A Training Model For School-Based Concussion Management, Arthur C. Maerlender, Jonathan D. Lichtenstein, Jennifer Parent-Nichols, Kate Higgins, Peggy Reisher

Center for Brain, Biology, and Behavior: Faculty Publications

This study reports on the use of ten knowledge competencies related to the behavioral management of concussion in schools. Trainings using these competencies as learning objectives were delivered to school personnel. This aims of the use of competencies in this way are to streamline the education of key stakeholders, to establish clear roles and responsibilities for constituents and equip individuals working with students following a concussion with the relevant knowledge to optimize outcomes. The majority of participants, primarily speech language pathologists working as related service providers in the schoolswhere the trainings occurred, judged the use of the competencies to be …


Confirmatory Factor Analysis Of Two Computerized Neuropsychological Test Batteries: Immediate Post-Concussion Assessment And Cognitive Test (Impact) And C3 Logix, Caitlin Masterson, Julie Tuttle, Arthur C. Maerlender Jan 2019

Confirmatory Factor Analysis Of Two Computerized Neuropsychological Test Batteries: Immediate Post-Concussion Assessment And Cognitive Test (Impact) And C3 Logix, Caitlin Masterson, Julie Tuttle, Arthur C. Maerlender

Center for Brain, Biology, and Behavior: Faculty Publications

Introduction: Tests of memory and speed of cognitive and motor responses have been the primary foci in sports-related concussion assessment. This study sought to assess the construct validity of neuropsychological tests within C3 Logix.

Method: Results of both baseline C3 Logix and the Immediate Post-Concussion Assessment and Cognitive Test (ImPACT) computerized tests from 86 Division I collegiate athletes were submitted to a two-factor confirmatory analysis using structural equation modeling. The two factors of Speed and Memory have been confirmed in previous studies of ImPACT.

Results: Results confirmed the two-factor model of ImPACT, whereas C3 Logix did not …


Functional Source Separation For Eeg-Fmri Fusion: Application To Steady-State Visual Evoked Potentials, Hong Ji, Badong Chen, Nathan M. Petro, Zejian Yuan, Nanning Zheng, Andreas Keil Jan 2019

Functional Source Separation For Eeg-Fmri Fusion: Application To Steady-State Visual Evoked Potentials, Hong Ji, Badong Chen, Nathan M. Petro, Zejian Yuan, Nanning Zheng, Andreas Keil

Center for Brain, Biology, and Behavior: Faculty Publications

Neurorobotics is one of the most ambitious fields in robotics, driving integration of interdisciplinary data and knowledge. One of the most productive areas of interdisciplinary research in this area has been the implementation of biologically-inspired mechanisms in the development of autonomous systems. Specifically, enabling such systems to display adaptive behavior such as learning from good and bad outcomes, has been achieved by quantifying and understanding the neural mechanisms of the brain networks mediating adaptive behaviors in humans and animals. For example, associative learning from aversive or dangerous outcomes is crucial for an autonomous system, to avoid dangerous situations in the …


Performance Anxiety And The Benefits Of Proper Breathing For Singing, Kate Zecher Apr 2018

Performance Anxiety And The Benefits Of Proper Breathing For Singing, Kate Zecher

Undergraduate Theses

The intent of this thesis is to help those with Music Performance Anxiety, or anxiety in general, better understand their anxiety and its causes. They can then use this knowledge to reduce or control their symptoms in order to improve their performance, whether on a stage or in a classroom. One of the main symptoms of Music Performance Anxiety is constriction of the chest. It is one of the most debilitating symptoms to singers as it causes shortness of breath. Therefore, focusing on anxiety in relation to breathing will most benefit those with Music Performance Anxiety. In addition, learning about …


'No Pink Ribbons': How Women's Lived Experiences With Breast Atypia Inform Decisions Involving Risk-Reducing Medications, Sarah L. Goff, Reva Kleppel, Grace Makari-Judson Apr 2018

'No Pink Ribbons': How Women's Lived Experiences With Breast Atypia Inform Decisions Involving Risk-Reducing Medications, Sarah L. Goff, Reva Kleppel, Grace Makari-Judson

Journal of Patient-Centered Research and Reviews

Purpose: Atypical hyperplasia (AH) is associated with a nearly 4-fold elevation of lifetime risk for breast cancer, and lobular carcinoma in situ (LCIS) is associated with a 7- to 8-fold risk. Women with AH/LCIS make numerous decisions in the course of treatment, including whether to take a risk-reducing medication, an option relatively few women pursue. We explored women’s decision-making processes through patient narratives in an effort to inform decision supports for AH/LCIS.

Methods: We conducted in-depth interviews with 20 English-speaking women with AH/LCIS and no subsequent diagnosis of invasive breast cancer who had enrolled in the Rays of Hope Center …


Concussion Competencies: A Framework For School-Based Concussion Management (Flyer), Arthur C. Maerlender, Jonathan Lichtenstein, Jennifer Parent-Nichols Feb 2018

Concussion Competencies: A Framework For School-Based Concussion Management (Flyer), Arthur C. Maerlender, Jonathan Lichtenstein, Jennifer Parent-Nichols

Center for Brain, Biology, and Behavior: Faculty Publications

This volume grew out of many years of clinical practice, research, and program projects. It is the culmination of more than 50 years of work with kids, brains, and schools. While there is research behind the Competencies and the underlying content, the intent was to create a user-friendly manual that cut across levels of responsibility and care. Concussion Competencies was not intended to be a textbook in the traditional manner; however, the Competencies have been shown to be a useful approach to teaching this material.

This volume is organized around a set of Competencies that have been shown to be …


Factor Structure And Gender Invariance Testing For The Sport Anxiety Scale-2 (Sas-2), Leilani Madrigal, Vincenzo Roma, Todd Caze, Arthur C. Maerlender, Debra Hope Jan 2018

Factor Structure And Gender Invariance Testing For The Sport Anxiety Scale-2 (Sas-2), Leilani Madrigal, Vincenzo Roma, Todd Caze, Arthur C. Maerlender, Debra Hope

Center for Brain, Biology, and Behavior: Faculty Publications

This study aimed to provide further psychometric validation of the Sport Anxiety Scale-2 (SAS-2) by assessing the factor structure, invariance across gender, and convergent and divergent validity of the SAS-2 by correlating both related (i.e., anxiety sensitivity, brief fear of negative evaluation, intolerance of uncertainty, and negative affect) and unrelated constructs (i.e., positive affect, self-confidence). A total of 542 current and former competitive athletes completed a questionnaire through Amazon’s Mechanical Turk system. All data were collected via online survey. Participants were randomly assigned to an exploratory factor analysis (n = 271) and confirmatory factor analysis group (n = 271). Results …


Accumulating Data To Optimally Predict Obesity Treatment (Adopt): Recommendations From The Biological Domain, Michael Rosenbaum, Tanya Agurs-Collins, Molly S. Bray, Kevin D. Hall, Mark Hopkins, Maren Laughlin, Paul S. Maclean, Padma Maruvada, Cary R. Savage, Dana M. Small, Luke Stoeckel Jan 2018

Accumulating Data To Optimally Predict Obesity Treatment (Adopt): Recommendations From The Biological Domain, Michael Rosenbaum, Tanya Agurs-Collins, Molly S. Bray, Kevin D. Hall, Mark Hopkins, Maren Laughlin, Paul S. Maclean, Padma Maruvada, Cary R. Savage, Dana M. Small, Luke Stoeckel

Center for Brain, Biology, and Behavior: Faculty Publications

Background: The responses to behavioral, pharmacological, or surgical obesity treatments are highly individualized. The Accumulating Data to Optimally Predict obesity Treatment (ADOPT) project provides a framework for how obesity researchers, working collectively, can generate the evidence base needed to guide the development of tailored, and potentially more effective, strategies for obesity treatment. Objectives: The objective of the ADOPT biological domain subgroup is to create a list of high-priority biological measures for weight-loss studies that will advance the understanding of individual variability in response to adult obesity treatments. This list includes measures of body composition, energy homeostasis (energy intake and output), …


Left Lateralized Cerebral Glucose Metabolism Declines In Amyloid-Β Positive Persons With Mild Cognitive Impairment, Christopher M. Weise, Kewei Chen, Yinghua Chen, Xiaoying Kuang, Cary R. Savage, Eric M. Reiman Jan 2018

Left Lateralized Cerebral Glucose Metabolism Declines In Amyloid-Β Positive Persons With Mild Cognitive Impairment, Christopher M. Weise, Kewei Chen, Yinghua Chen, Xiaoying Kuang, Cary R. Savage, Eric M. Reiman

Center for Brain, Biology, and Behavior: Faculty Publications

Background: Previous publications indicate that Alzheimer's Disease (AD) related cortical atrophy may develop in asymmetric patterns, with accentuation of the left hemisphere. Since fluorodeoxyglucose positron emission tomography (FDG PET) measurements of the regional cerebral metabolic rate of glucose (rCMRgl) provide a sensitive and specific marker of neurodegenerative disease progression, we sought to investigate the longitudinal pattern of rCMRgl in amyloid-positive persons with mild cognitive impairment (MCI) and dementia, hypothesizing asymmetric declines of cerebral glucose metabolism. Methods: Using florbetapir PET and cerebrospinal fluid (CSF) measures to define amyloid-β (Aβ) positivity, 40 Aβ negative (Aβ-) cognitively unimpaired controls (CU; 76 ± 5y), …


Novel Biomarkers Of Physical Activity Maintenance In Midlife Women: Preliminary Investigation, Kelly A. Bosak, Vlad B. Papa, Morgan G. Brucks, Cary R. Savage, Joseph E. Donnelly, Laura E. Martin Jan 2018

Novel Biomarkers Of Physical Activity Maintenance In Midlife Women: Preliminary Investigation, Kelly A. Bosak, Vlad B. Papa, Morgan G. Brucks, Cary R. Savage, Joseph E. Donnelly, Laura E. Martin

Center for Brain, Biology, and Behavior: Faculty Publications

The precision health initiative is leading the discovery of novel biomarkers as important indicators of biological processes or responses to behavior, such as physical activity. Neural biomarkers identified by magnetic resonance imaging (MRI) hold promise to inform future research, and ultimately, for transfer to the clinical setting to optimize health outcomes. This study investigated resting-state and functional brain biomarkers between midlife women who were maintaining physical activity in accordance with the current national guidelines and previously acquired age-matched sedentary controls. Approval was obtained from the Human Subjects Committee. Participants included nondiabetic, healthy weight to overweight (body mass index 19–29.9 kg/m …


Mesotocin Influences Pinyon Jay Prosociality, J. F. Duque, W. Leichner, H. Ahmann, Jeffrey R. Stevens Jan 2018

Mesotocin Influences Pinyon Jay Prosociality, J. F. Duque, W. Leichner, H. Ahmann, Jeffrey R. Stevens

Center for Brain, Biology, and Behavior: Faculty Publications

Many species exhibit prosocial behavior , in which one individual’s actions benefit another individual, often without an immediate benefit to itself. The neuropeptide oxytocin is an important hormonal mechanism influencing prosociality in mammals, but it is unclear whether the avian homologue mesotocin plays a similar functional role in birds. Here, we experimentally tested prosociality in pinyon jays (Gymnorhinus cyanocephalus), a highly social corvid species that spontaneously shares food with others. First, we measured prosocial preferences in a prosocial choice task with two different pay-off distributions: Prosocial trials delivered food to both the subject and either an empty cage …


Reliability And Concurrent Validity Of Select C3 Logix Test Components, Madeline Simon, Arthur C. Maerlender, Katelyn Metzger, Laura Decoster, Amy Hollingworth, Tamara Valovich Mcleod Oct 2017

Reliability And Concurrent Validity Of Select C3 Logix Test Components, Madeline Simon, Arthur C. Maerlender, Katelyn Metzger, Laura Decoster, Amy Hollingworth, Tamara Valovich Mcleod

Center for Brain, Biology, and Behavior: Faculty Publications

We sought to investigate the one-week and within-session reliability of the instrumented balance error scoring system test and the concurrent validity/one-week reliability of two neurocognitive assessments available through C3 Logix. (n = 37) Participants completed two balance error scoring system tests separated by the Trails A, Trails B, and Symbol Digit Modality test available through C3 Logix, and with paper and pencil. We found that the instrumented balance error scoring system test demonstrated strong one-week reliability and that neuropsychological tests available through C3 Logix show acceptable concurrent validity with standard (comparable) paper and pencil measures.


Examining The Relationship Between Home Literacy Environment And Neural Correlates Of Phonological Processing In Beginning Readers With And Without A Familial Risk For Dyslexia: An Fmri Study, Sara J. Powers, Yingying Wang, Sara D. Beach, Georgios D. Sideridis, Nadine Gaab Oct 2017

Examining The Relationship Between Home Literacy Environment And Neural Correlates Of Phonological Processing In Beginning Readers With And Without A Familial Risk For Dyslexia: An Fmri Study, Sara J. Powers, Yingying Wang, Sara D. Beach, Georgios D. Sideridis, Nadine Gaab

Center for Brain, Biology, and Behavior: Faculty Publications

Developmental dyslexia is a language-based learning disability characterized by persistent difficulty in learning to read. While an understanding of genetic contributions is emerging, the ways the environment affects brain functioning in children with developmental dyslexia are poorly understood. A relationship between the home literacy environment (HLE) and neural correlates of reading has been identified in typically developing children, yet it remains unclear whether similar effects are observable in children with a genetic predisposition for dyslexia. Understanding environmental contributions is important given that we do not understand why some genetically at-risk children do not develop dyslexia. Here we investigate for the …


Brain Encoding Of Saltatory Velocity Through A Pulsed Pneumotactile Array In The Lower Face, Rebecca Custead, Hyuntaek Oh, Yingying Wang, Steven M. Barlow Sep 2017

Brain Encoding Of Saltatory Velocity Through A Pulsed Pneumotactile Array In The Lower Face, Rebecca Custead, Hyuntaek Oh, Yingying Wang, Steven M. Barlow

Center for Brain, Biology, and Behavior: Faculty Publications

Processing dynamic tactile inputs is a primary function of the somatosensory system. Spatial velocity encoding mechanisms by the nervous system are important for skilled movement production and may play a role in recovery of sensorimotor function following neurological insult. Little is known about tactile velocity encoding in mechanosensory trigeminal networks required for speech, suck, mastication, and facial gesture.

High resolution functional magnetic resonance imaging (fMRI) was used to investigate the neural substrates of velocity encoding in the human orofacial somatosensory system during unilateral saltatory pneumotactile stimulation of perioral and buccal hairy skin in 20 neurotypical adults. A custom multichannel, scalable …


Lessons To Be Learned: How A Comprehensive Neurobiological Framework Of Atypical Reading Development Can Inform Educational Practice, Ola Ozernov-Palchik, Xi Yu, Yingying Wang, Nadine Gaab Aug 2017

Lessons To Be Learned: How A Comprehensive Neurobiological Framework Of Atypical Reading Development Can Inform Educational Practice, Ola Ozernov-Palchik, Xi Yu, Yingying Wang, Nadine Gaab

Center for Brain, Biology, and Behavior: Faculty Publications

Dyslexia is a heritable reading disorder with an estimated prevalence of 5–17%. A multiple deficit model has been proposed that illustrates dyslexia as an outcome of multiple risks and protective factors interacting at the genetic, neural, cognitive, and environmental levels. Here we review the evidence on each of these levels and discuss possible underlying mechanisms and their reciprocal interactions along a developmental timeline. Current and potential implications of neuroscientific findings for contemporary challenges in the field of dyslexia, as well as for reading development and education in general, are then discussed.


Characterization Of Transmembrane Protein 35 Expression: Considerations Of Sex And Ovarian Hormones, Amanda M. Vanderplow Jul 2017

Characterization Of Transmembrane Protein 35 Expression: Considerations Of Sex And Ovarian Hormones, Amanda M. Vanderplow

All NMU Master's Theses

The recently discovered novel neuropeptide transmembrane protein 35 (TMEM35), is believed to modulate chemical signaling within the nervous system. Notably, the TMEM35 protein is detectable in humans, non-human primates and rodents, suggesting a conserved and critical function. Despite this, the functions of TMEM35 are ill-defined in the nervous system and insufficiently studied (currently only three publications). Previous work has identified high expression of TMEM35 in both the ventromedial hypothalamus (VMH) and the limbic circuit of the mouse brain. Due to the known functions of these two regions, this pattern of expression indicates possible roles of this neuropeptide in social behavior …


The Neuropsychology Of Sport And Performance, Arthur C. Maerlender Jan 2017

The Neuropsychology Of Sport And Performance, Arthur C. Maerlender

Center for Brain, Biology, and Behavior: Faculty Publications

Neuropsychological theory has been a mainstay for understanding pathology within the brain-behavior context. However, our theories for predicting superior behavior are not as well developed. Sport neuropsychology was developed on the presumption that athletes represent a population in a relatively well-controlled environment for studying brain pathology due to injury. This study of pathology within a high-performance environment has been responsible for identifying the effects of mild traumatic brain injury (mTBI) on individual functioning. Far less attention has been paid to the other end of the performance continuum, and yet, viable brain-behavior hypotheses should hold true across the spectrum of function …


Validity And Reliability Of Baseline Testing In A Standardized Environment, Kathryn L. Higgins, Todd Caze, Arthur C. Maerlender Jan 2017

Validity And Reliability Of Baseline Testing In A Standardized Environment, Kathryn L. Higgins, Todd Caze, Arthur C. Maerlender

Center for Brain, Biology, and Behavior: Faculty Publications

Objective — The Immediate Postconcussion Assessment and Cognitive Testing (ImPACT) is a computerized neuropsychological test battery commonly used to determine cognitive recovery from concussion based on comparing post-injury scores to baseline scores. This model is based on the premise that ImPACT baseline test scores are a valid and reliable measure of optimal cognitive function at baseline. Growing evidence suggests that this premise may not be accurate and a large contributor to invalid and unreliable baseline test scores may be the protocol and environment in which baseline tests are administered. This study examined the effects of a standardized environment and administration …


Measurement Of Cortisol In Saliva: A Comparison Of Measurement Error Within And Between International Academic‑Research Laboratories, Jessica L. Calvi, Frances R. Chen, Victoria Brann Benson, Eleanor Brindle, Matt Bristow, Alpana De, Sonja Entringer, Helen Findlay, Christine Heim, Eric A. Hodges, Heiko Klawitter, Sonia Lupien, Holly M. Rus, Jitske Tiemensma, Silvanna Verlezza, Claire-Dominique Walker, Douglas A. Granger Jan 2017

Measurement Of Cortisol In Saliva: A Comparison Of Measurement Error Within And Between International Academic‑Research Laboratories, Jessica L. Calvi, Frances R. Chen, Victoria Brann Benson, Eleanor Brindle, Matt Bristow, Alpana De, Sonja Entringer, Helen Findlay, Christine Heim, Eric A. Hodges, Heiko Klawitter, Sonia Lupien, Holly M. Rus, Jitske Tiemensma, Silvanna Verlezza, Claire-Dominique Walker, Douglas A. Granger

Center for Brain, Biology, and Behavior: Faculty Publications

Objective: Hundreds of scientific publications are produced annually that involve the measurement of cortisol in saliva. Intra- and inter-laboratory variation in salivary cortisol results has the potential to contribute to crossstudy inconsistencies in findings, and the perception that salivary cortisol results are unreliable. This study rigorously estimates sources of measurement variability in the assay of salivary cortisol within and between established international academic-based laboratories that specialize in saliva analyses. One hundred young adults (Mean age: 23.10 years; 62 females) donated 2 mL of whole saliva by passive drool. Each sample was split into multiple- 100 μL aliquots and …


Patterns Of Referral In High School Concussion Management Programs: A Pilot Study Of Consultants From Different Disciplines, Jonathan Lichtenstein, Kate S. Linnea, Arthur C. Maerlender Jan 2017

Patterns Of Referral In High School Concussion Management Programs: A Pilot Study Of Consultants From Different Disciplines, Jonathan Lichtenstein, Kate S. Linnea, Arthur C. Maerlender

Center for Brain, Biology, and Behavior: Faculty Publications

School-based concussion management programs cover thousands of young athletes, yet there is little in the way of research to assess program processes or outcomes. This study examined the referral patterns of consultants working with ten high school concussion management programs. In addition to the number of referrals made to specialists, other potential outcome variables were explored. The sample included over 5,000 athlete-seasons and 298 concussions managed directly by certified athletic trainers. All programs used computerized neuropsychological testing (both baseline and post injury). Two groups were compared: five programs used a clinical neuropsychologist (NP) as the testing consultant and five used …