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Full-Text Articles in Medicine and Health Sciences

The Associations Of Physical Activity And Sedentary Behavior With Self-Rated Health In Chinese Children And Adolescents, Yahan Liang, Youzhi Ke, Yang Liu Jan 2024

The Associations Of Physical Activity And Sedentary Behavior With Self-Rated Health In Chinese Children And Adolescents, Yahan Liang, Youzhi Ke, Yang Liu

Human Movement Studies & Special Education Faculty Publications

Objective

The study aimed to analyze the independent and joint associations of physical activity (PA) and sedentary behavior (SB) with self-rated health (SRH) among Chinese children and adolescents.

Methods

Cross-sectional data on moderate-to-vigorous physical activity (MVPA), school-based PA, extracurricular physical activity (EPA), screen time (ST), homework time, and SRH were assessed through a self-report questionnaire in the sample of 4227 Chinese children and adolescents aged 13.04 ± 2.62 years. Binary logistic regression was used to compare gender differences in PA, SB, and SRH among children and adolescents, and analyses were adjusted for age and ethnicity.

Results

In independent associations, boys …


The Lived Experience Of The Covid-19 Pandemic Among Mandate-Resistant Adults In Washington State, Amber N. Peterson Jan 2024

The Lived Experience Of The Covid-19 Pandemic Among Mandate-Resistant Adults In Washington State, Amber N. Peterson

Antioch University Dissertations & Theses

This study examined the lived experience of self-identified, mandate-resistant adults in Washington state. This study explored participants’ experience of the COVID-19 pandemic, from a retrospective framework by uncovering challenges, silver linings, decision-making, and self-reported mental health. Remote interviews were conducted with nine participants. Participants were between 23–31 years old, mostly male, and over half identified as Black. Through semi structured interviews, data was collected and analyzed using Interpretive Phenomenological Analysis (IPA). Participants described their experiences during the COVID-19 pandemic and highlighted significant changes in the way they lived their lives. Most notably, participants described ways in which they defied COVID-19 …


Sex Differences In Stress Reactivity, Brain Morphology, And Oxytocin In The Hypothalamus Of The Gray Short-Tailed Opossum (Monodelphis Domestica), Esperanza I. Zacarias, Daniela Rodriguez, Alexandra Chalons, Sasawan Heingraj, Nicole Altamirano, Joseph Rafac, John L. Vandeberg, Mario Gil Oct 2023

Sex Differences In Stress Reactivity, Brain Morphology, And Oxytocin In The Hypothalamus Of The Gray Short-Tailed Opossum (Monodelphis Domestica), Esperanza I. Zacarias, Daniela Rodriguez, Alexandra Chalons, Sasawan Heingraj, Nicole Altamirano, Joseph Rafac, John L. Vandeberg, Mario Gil

Research Colloquium

Understanding the effects of stress on behavior and cognition is important due to its impact on mental health and wellbeing (Schneiderman et al. 2005). Translational animal research can contribute to the development of new treatments that can improve therapeutic outcomes and our understanding of the neurobiology of stress. In the present study, we complement behavioral stress reactivity with immunohistochemical localization of oxytocin in the hypothalamus, a neuropeptide that regulates stress (Neumann & Slattery, 2016). Oxytocin has potential therapeutic use for mental health disorders (Neumann & Slattery, 2016), and the effects of oxytocin seem to be sexually dimorphic (Love, 2018). Using …


Examining The Effect Of Physician Language On Physician Impressions, Kathleen L. Hopps, Anna H. Rini, Maggie E. Williams, Gina A. Paganini, E. Paige Lloyd Feb 2023

Examining The Effect Of Physician Language On Physician Impressions, Kathleen L. Hopps, Anna H. Rini, Maggie E. Williams, Gina A. Paganini, E. Paige Lloyd

DU Undergraduate Research Journal Archive

Previous research provides evidence that stigma can be perpetuated through language with consequences for well-being and quality of care. For example, providers who use stigmatizing language transmit bias toward patients with implications for care provided by other healthcare professionals. The current work extends upon this research by investigating perceptions of physicians who use stigmatizing or humanizing language. The current work sought to document the negative consequences of providers’ indelicate language on impressions of the provider, thereby motivating thoughtful language choices. To this end, the current work experimentally manipulated the language (stigmatizing, identity-first and destigmatizing, person-first) that hypothetical providers used to …


The Effects Of Screen Time On Children, Jacqueline Valdepenas Jan 2023

The Effects Of Screen Time On Children, Jacqueline Valdepenas

Nursing | Senior Theses

With the development of technology continuing to grow at a fast-paced pace in society, children are now becoming exposed to such technology at a younger age. The introduction of smartphones and tablets, which is defined as screen time in this paper, are being introduced to children as young as 6 months of age. Instead of children playing with toys recommended for their age, they use screen time for their play needs and entertainment. Some parents use screen time as a distraction and/or relief for their own needs when the child is upset or they’re unable to tend to the child. …


Moving Forward: Studying The Impact Of Future Self-Continuity And Active Commuting On Depression, Anxiety, And Stress, Max William Gehr Jan 2023

Moving Forward: Studying The Impact Of Future Self-Continuity And Active Commuting On Depression, Anxiety, And Stress, Max William Gehr

Senior Projects Fall 2023

The current research delves into the relationship between Future Self-Continuity (FSC) and mental health, particularly in the context of commuting behaviors. It employs a cross-sectional, observational design and relies on self-reported data. While this approach provides helpful perspicuity into the nature of the observed phenomena, it also expresses methodological limitations in terms of causal inference and variable control and manipulation. The study utilizes established psychometric tools as a basis for modified measures for the sake of brevity and digestibility by recruited online participants: the Truncated Future Self-Continuity Questionnaire (FSCQ-T) and the Depression Anxiety and Stress Scale-10 (DASS-10), to measure the …


Bias In Measurement Of Autism Symptoms By Spoken Language Level And Non-Verbal Mental Age In Minimally Verbal Children With Neurodevelopmental Disorders, Shuting Zheng, Aaron Kaat, Cristan Farmer, Audrey Thurm, Catherine A. Burrows, Stephen Kanne, Stelios Georgiades, Amy Esler, Catherine Lord, Nicole Takashashi, Kerri P. Nowell, Elizabeth A. Will Ph.D., Jane E. Roberts, Somer L. Bishop Jul 2022

Bias In Measurement Of Autism Symptoms By Spoken Language Level And Non-Verbal Mental Age In Minimally Verbal Children With Neurodevelopmental Disorders, Shuting Zheng, Aaron Kaat, Cristan Farmer, Audrey Thurm, Catherine A. Burrows, Stephen Kanne, Stelios Georgiades, Amy Esler, Catherine Lord, Nicole Takashashi, Kerri P. Nowell, Elizabeth A. Will Ph.D., Jane E. Roberts, Somer L. Bishop

Faculty Publications

Increasing numbers of children with known genetic conditions and/or intellectual disability are referred for evaluation of autism spectrum disorder (ASD), highlighting the need to refine autism symptom measures to facilitate differential diagnoses in children with cognitive and language impairments. Previous studies have reported decreased specificity of ASD screening and diagnostic measures in children with intellectual disability. However, little is known about how cognitive and language abilities impact the measurement of specific ASD symptoms in this group. We aggregated a large sample of young children (N = 1196; aged 31-119 months) to examine measurement invariance of ASD symptoms among minimally verbal …


Hubungan Antara Iklim Keselamatan Dengan Perilaku Keselamatan Pada Pekerja Proyek Pln Pusmapro Pst Jateng I, Charisha Kumala, Doni Hikmat Hikmat Ramdhan Aug 2021

Hubungan Antara Iklim Keselamatan Dengan Perilaku Keselamatan Pada Pekerja Proyek Pln Pusmapro Pst Jateng I, Charisha Kumala, Doni Hikmat Hikmat Ramdhan

National Journal of Occupational Health and Safety

A safety management system is crucial for the construction industry to effectively manage on-site safety, and its sustainability can be evaluated by analyzing the relationship between safety climate and safety behavior without waiting for accidents to occur. This study aimed to analyze this relationship among 120 workers at the PLN PUSMANPRO PST JATENG I electrical construction project. Using a cross-sectional design, primary data were collected through a Likert scale questionnaire adapted from previous validated studies. The results revealed that the safety climate was predominantly rated as low, and bivariate analysis indicated a positive and moderately strong correlation (P value = …


An Investigation Of The Hot Docs Guide For Weekly Early Intervention Sessions: A Multiple Baseline Design, Cashea Holyfield Jun 2021

An Investigation Of The Hot Docs Guide For Weekly Early Intervention Sessions: A Multiple Baseline Design, Cashea Holyfield

USF Tampa Graduate Theses and Dissertations

Many parents of young children across the United States are increasingly impacted by their children’s display of early childhood challenging behavior. Common examples of these behaviors include feeding difficulties, tantrums, whining, crying, and noncompliance (Barbarian, 2007; Hemmeter et al., 2014; Spencer & Coe, 2003). Though the relationship between early childhood behavior problems and future outcomes may not be causal, researchers have consistently concluded that if left unaddressed, children who demonstrate early challenging behavior are likely to experience some difficulties in academic achievement, sociability, school readiness, and mental health (American Academy of Pediatrics, 2002; Turney & McLanahan, 2015). Behavioral parent training …


Social Environment Changes During Covid-19 Quarantine, Aileen Jimenez May 2021

Social Environment Changes During Covid-19 Quarantine, Aileen Jimenez

Honors Theses

The purpose of this research project is to understand perceptions of the psychological, behavioral, and social impacts of COVID-19. Students at the University of Mississippi were invited to participate in an online questionnaire administered through Qualtrics. The questionnaire was composed of questions concerning health behaviors, including questions from the Depression, Anxiety and Stress Scale-21, Perceived Vulnerability to Disease Scale, Fear of Coronavirus-19 Scale, and the World Health Organization’s COVID-19 Snapshot Monitoring study. 274 students participated in the study. Overall, the results of this study suggested moderate distress across the sample, differences in sleep, exercise, and alcohol consumption during quarantine conditions, …


Assessing Rat Behavioral Response To Novelty, Neha Mathew Apr 2021

Assessing Rat Behavioral Response To Novelty, Neha Mathew

Honors Scholar Theses

The hippocampus is the part of the brain that is involved in memory and navigation. Neurons in the hippocampus, known as place cells, fire in specific locations within this region of the brain as the subject navigates through their environment. As these cells fire, they create a map-like representation of this environment. However if the environment is altered in any way, the place cell firing pattern is adjusted to incorporate this new information. This adjustment will inevitably cause subjects to take more time to complete their task. The goal of our testing was to assess how various manipulations, both spatial …


Parental Stress Coping And Middle-School Students’ Grades And Behavioral Conduct, Stephanie Buckner Jan 2021

Parental Stress Coping And Middle-School Students’ Grades And Behavioral Conduct, Stephanie Buckner

Walden Dissertations and Doctoral Studies

AbstractAccording to Bronfenbrenner’s ecological systems theory, factors such as parental stress influence family functioning and affect children’s adaptive development. This quantitative study was conducted to better understand the association of parental stress coping skills with two dependent measures: the grades and behavioral conduct of middle-school students. Sixty-six parent/guardians completed the Coping Skills Assessment 2nd Revision (COSA R2), an assessment of parental stress coping skills and a brief questionnaire to collect data on their middle-school-aged children’s grades and conduct, along with demographic variables of race/ethnicity, age, family income level, number of children in the household, and partner status. No significant difference …


We All Feel Feelings, Ben Ohene Aug 2020

We All Feel Feelings, Ben Ohene

Theses and Dissertations

Consisting of three illustrated books, We All Feel Feelings is designed as a vehicle for the discussion of emotional and mental health with young boys. These books will help foster a mindset of openness and acceptance through different methods of displaying and understanding emotions.


Positive Behavior Support-Based In-Home Services For Traumatic Brain Injury, Charles Jack Jan 2020

Positive Behavior Support-Based In-Home Services For Traumatic Brain Injury, Charles Jack

Walden Dissertations and Doctoral Studies

Researchers have demonstrated the effectiveness of positive behavior support (PBS) services in the in-home (IH) setting but few studies examined its use with traumatic brain injury (TBI) clients, and most of these were small sample cases. Additional research on IH PBS services for TBI clients was recommended, in particular using larger samples. The purpose of this study was to address that need by examining the effectiveness of IH PBS services in treating TBI-related challenging behaviors on a larger sample. The theoretical foundations for PBS, behaviorism, cognitive constructivism, social learning theory, and the biopsychosocial model of behavior, are described. The research …


Does Common-Sense Communication And The Interpersonal Relationship Predict Oral Health Self-Management?, Kieran J. Maestro Jan 2020

Does Common-Sense Communication And The Interpersonal Relationship Predict Oral Health Self-Management?, Kieran J. Maestro

Legacy Theses & Dissertations (2009 - 2024)

This study sought to understand how patients’ perceptions of the nature and manner of communication with dental health professionals may impact their health self-management quality and habits in the context of preventable illness. Specifically, this study investigated the distinct and overlapping impacts of (a) communication based in the Common Sense Self-Regulation Model (CSM; Leventhal et al., 1980), and (b) the interpersonal relationship between the patient and the dental health professional provider on patients’ oral hygiene quality and habits. It was hypothesized that the interpersonal relationship would positively moderate a positive relation between CSM-based communication and patients' oral health self-management and …


A Phenomenological Study Of The Experiences Of Military Families, Who Have Children With Disabilities And Maladaptive Behavior, With School-Based Mental Health Personnel, Londi J. Segler Jan 2020

A Phenomenological Study Of The Experiences Of Military Families, Who Have Children With Disabilities And Maladaptive Behavior, With School-Based Mental Health Personnel, Londi J. Segler

Electronic Theses and Dissertations

This qualitative study used a phenomenological approach to capture the lived experiences of military families who have children with disabilities and maladaptive behavior to note risk and protective factors that might impede the mental health development of that population of student. Through interviews with at-home-caregivers, I explored their experiences with public school staff, outside mental health services, and school psychologists. Study findings revealed that participants felt they were going to battle with school staff who were not willing to incorporate culturally responsive practices when working with their children. School staff who implemented regular bi-directional communication were more likely to gain …


Behavioural Risks In Female Dogs With Minimal Lifetime Exposure To Gonadal Hormones, Melissa J. Starling, Anne Fawcett, Bethany Wilson, James Serpell, Paul Mcgreevy Dec 2019

Behavioural Risks In Female Dogs With Minimal Lifetime Exposure To Gonadal Hormones, Melissa J. Starling, Anne Fawcett, Bethany Wilson, James Serpell, Paul Mcgreevy

Physiology Collection

Spaying of female dogs is a widespread practice, performed primarily for population control. While the consequences of early spaying for health are still being debated, the consequences for behaviour are believed to be negligible. The current study focused on the reported behaviour of 8981 female dogs spayed before 520 weeks (ten years) of life for reasons other than behavioural management, and calculated their percentage lifetime exposure to gonadal hormones (PLGH) as a proportion of their age at the time of being reported to the online Canine Behavioral Assessment and Research Questionnaire (C-BARQ). We found that 23 behaviours differed between entire …


The Effects Of Stress Mindset Interventions On University Students' Health And Functioning, Abigail Fate Apr 2019

The Effects Of Stress Mindset Interventions On University Students' Health And Functioning, Abigail Fate

Undergraduate Honors Papers

In modern society, the overwhelming cultural narrative proclaims that stress is detrimental to health and should be limited and avoided at all costs. However, recent research has demonstrated that it is one’s stress mindset, rather than their stress level, that determines the psychological and physiological outcomes. Mindsets are lenses that simplify and order the world, and have been proven to influence daily behavioral and physiological responses to create cascading effects. Recent research has demonstrated that one’s mindset about stress is the demining factor in health, performance, and productivity in response to stressful conditions, and that these mindsets can be manipulated …


Diurnally Active Rodents For Laboratory Research, Roberto Refinetti, G. J. Kenagy Dec 2018

Diurnally Active Rodents For Laboratory Research, Roberto Refinetti, G. J. Kenagy

Psychological Sciences Faculty Publications and Presentations

Although inbred domesticated strains of rats and mice serve as traditional mammalian animal models in biomedical research, the nocturnal habits of these rodents make them inappropriate for research that requires a model with human-like diurnal activity rhythms. We conducted a literature review and recorded locomotor activity data from four rodent species that are generally considered to be diurnally active, the Mongolian gerbil (Meriones unguiculatus), the degu (Octodon degus), the African (Nile) grass rat (Arvicanthis niloticus), and the antelope ground squirrel (Ammospermophilus leucurus). Our data collected under 12L:12D light-dark cycles confirmed and expanded …


Adolescent Cannabinoid Exposure Induces A Persistent Sub-Cortical Hyper-Dopaminergic State And Associated Molecular Adaptations In The Prefrontal Cortex., Justine Renard, Laura G Rosen, Michael Loureiro, Cleusa De Oliveira, Susanne Schmid, Walter J Rushlow, Steven R Laviolette Feb 2017

Adolescent Cannabinoid Exposure Induces A Persistent Sub-Cortical Hyper-Dopaminergic State And Associated Molecular Adaptations In The Prefrontal Cortex., Justine Renard, Laura G Rosen, Michael Loureiro, Cleusa De Oliveira, Susanne Schmid, Walter J Rushlow, Steven R Laviolette

Brain and Mind Institute Researchers' Publications

Considerable evidence suggests that adolescent exposure to delta-9-tetrahydrocanabinol (THC), the psychoactive component in marijuana, increases the risk of developing schizophrenia-related symptoms in early adulthood. In the present study, we used a combination of behavioral and molecular analyses with in vivo neuronal electrophysiology to compare the long-term effects of adolescent versus adulthood THC exposure in rats. We report that adolescent, but not adult, THC exposure induces long-term neuropsychiatric-like phenotypes similar to those observed in clinical populations. Thus, adolescent THC exposure induced behavioral abnormalities resembling positive and negative schizophrenia-related endophenotypes and a state of neuronal hyperactivity in the mesocorticolimbic dopamine (DA) pathway. …


The Effect Of Clinician Competence And Religiosity On The Trainee Clinician’S Ability To Identify Problematic Sexual Behavior, Cody Butcher Jan 2017

The Effect Of Clinician Competence And Religiosity On The Trainee Clinician’S Ability To Identify Problematic Sexual Behavior, Cody Butcher

All Graduate Theses, Dissertations, and Other Capstone Projects

Models in psychology do not consider the concept of sex addiction the same way as other substance or behavior addictions. For example, sex addiction, which is not a DSM-5 disorder, is often assigned as a label to clients based off of high frequency of sexual behavior. Despite sex addiction not being a diagnosable disorder, sex addiction therapists are conducting treatment with people who identify as sex addicts. Due to this lack of a definition, previous research has found that clinicians may identify sex addiction in clients based on their own preconceived worldviews of what types of sexual behaviors or frequencies …


The Cost Of Getting Lost: Measuring The Slot Machine ‘Zone’ With Attentional Dual Tasks, W. Spencer Murch Jun 2016

The Cost Of Getting Lost: Measuring The Slot Machine ‘Zone’ With Attentional Dual Tasks, W. Spencer Murch

International Conference on Gambling & Risk Taking

A contemporary stance on regular and problematic electronic gaming machine (EGM) gamblers argues that these individuals use machine gambling as a means of escaping aversive feelings rather than as a means of seeking out excitement. Often called “The Slot Machine Zone,” this hypothesis currently rests on qualitative and anecdotal data suggesting that machine gamblers are somehow lost in the game (Schüll, 2012). Conceptually similar to work on flow and dissociation, the zone hypothesis predicts that problematic EGM play is associated with 1) increased self-reported dissociation / immersion, 2) attenuated peripheral attention, and 3) a positive physiological state as a result. …


The Impact Of Crisis Alleviation Lessons And Methods Program On Injuries In Healthcare, Andra Lynn Ferguson Jan 2015

The Impact Of Crisis Alleviation Lessons And Methods Program On Injuries In Healthcare, Andra Lynn Ferguson

Walden Dissertations and Doctoral Studies

The purpose of this study was to examine whether Crisis Alleviation Lessons and Methods -© (CALM), as a behavioral crisis management program, was effective in reducing patient and healthcare professional injuries in a long-term residential care setting. This research was needed due to the lack of peer-reviewed scholarly literature on the effectiveness of behavioral crisis management programs, especially on programs using both nonphysical and physical de-escalation techniques, such as CALM. An auto-regressive integrated moving average (ARIMA) time series analysis was performed to examine the effect the implementation of the CALM program (independent variable) had on the rate of injuries to …


A Survey Of The Management And Development Of Captive African Elephant (Loxodonta Africana) Calves: Birth To Three Months Of Age, Nicole L. Kowalski, Robert H.I. Dale, Christa L. H. Mazur Jun 2014

A Survey Of The Management And Development Of Captive African Elephant (Loxodonta Africana) Calves: Birth To Three Months Of Age, Nicole L. Kowalski, Robert H.I. Dale, Christa L. H. Mazur

Robert H. I. Dale

We used four surveys to collect information about the birth, physical growth, and behavioral development of 12 African elephant calves born in captivity. The management of the birth process and neonatal care involved a variety of standard procedures. All of the calves were born at night, between 7PM and 7AM. The calves showed a systematic progression in behavioral and physical development, attaining developmental milestones at least a quickly as calves in situ. This study emphasized birth-related events, changes in the ways that calves used their trunks, first instances of behaviors, and interactions of the calves with other, usually adult, elephants. …


Growing Ideas - Daily Transitions - Time For A Change, University Of Maine Center For Community Inclusion And Disability Studies Jan 2014

Growing Ideas - Daily Transitions - Time For A Change, University Of Maine Center For Community Inclusion And Disability Studies

Early Childhood Resources

Young children with and without disabilities experience many changes during their day. Daily transitions in early care and education programs take place during an activity, or when children move from one activity to another or one location to another. Transitions include the following: Arriving at or departing from a program; Exchanging toys; Entering or leaving a play area during free choice time; Cleaning up after morning activities and starting a group circle time; Getting dressed to go outside to play; and Shifting from playing with friends to working with a teacher/therapist on a particular skill. Thoughtful planning is needed so …


Academic Predictors And Characteristics Of Self-Reported Juvenile Firesetting, Carrie Howell Bowling, Hatim A. Omar Jan 2014

Academic Predictors And Characteristics Of Self-Reported Juvenile Firesetting, Carrie Howell Bowling, Hatim A. Omar

Pediatrics Faculty Publications

The main purpose of this study was to address gaps in existing research by examining the relationship between academic performance and attention problems with juvenile firesetting. Two datasets from the Achenbach System for Empirically Based Assessment (ASEBA) were used. The Factor Analysis Dataset (N = 975) was utilized and results indicated that adolescents who report lower academic performance are more likely to set fires. Additionally, adolescents who report a poor attitude toward school are even more likely to set fires. Logistic regressions were run to determine if attention problems predicted firesetting and the findings indicated that attention problems are predictive …


Inattention And Hyperactivity Among Preschool Age Children Born Prematurely, Andrew Heitzer Jan 2014

Inattention And Hyperactivity Among Preschool Age Children Born Prematurely, Andrew Heitzer

Wayne State University Theses

A large body of literature shows that compared to children born at term, preterm- children are at increased risk for difficulties with inattention and hyperactivity. Less consistency exists, however, in the limited body of research exploring the contribution of early biological risk to behavioral disinhibition within the population of children born prematurely. Therefore, our goal was to examine perinatal variables that may influence activity level and hyperactivity among preterm preschoolers. Ninety-eight preterm (23.4 - 33.9 weeks gestation) preschoolers (3-4 years) participated in the study. Direct measures of inattention and hyperactivity as well as parental ratings were used to evaluate behavior. …


The Development Of The Barriers, Elizabeth Hagelsieb-Escalera Jan 2014

The Development Of The Barriers, Elizabeth Hagelsieb-Escalera

Open Access Theses & Dissertations

Estimates of undiagnosed diabetics are as high as 50%. Early intervention and management can reduce the complications of diabetes; however, this is possible only after the disease has been diagnosed. A review of diabetes screening literature revealed a dearth of information regarding the diabetes screening behavior of individuals. Unlike barriers to cancer screening, little is known about barriers and facilitators to diabetes screening. The theory of planned behavior (TPB) is a logical theoretical framework to apply for the examination of screening intentions because it allows inference of behavioral predictors via survey item responses. Using the TPB framework, the Barriers and …


Caffeinated Alcohol Use And Expectancies For Caffeine Versus Alcohol, Cathy Lau-Barraco, Ashley N. Linden Jan 2014

Caffeinated Alcohol Use And Expectancies For Caffeine Versus Alcohol, Cathy Lau-Barraco, Ashley N. Linden

Psychology Faculty Publications

Background- Caffeinated alcoholic beverage (CAB) use is related to alcohol-related risk. Limited research has examined outcome expectancies and CAB consumption.

Objectives- This study tested the predictive utility of caffeine and alcohol expectancies in CAB use outcomes (i.e. quantity, frequency, and alcohol-related harms).

Methods- Participants were 419 (302 women) alcohol and caffeine users from a mid-sized urban university. Data collection occurred between August 2010 and December 2011. Participants completed measures of caffeine and alcohol expectancies, alcohol problems, alcohol use, and CAB use.

Results- Caffeine and alcohol expectancies contributed uniquely to approximately 12% of the variability in quantity, 8% in frequency, and …


Skill Learning Strengthens Cortical Representations Of Motor Sequences., Tobias Wiestler, Jörn Diedrichsen Jul 2013

Skill Learning Strengthens Cortical Representations Of Motor Sequences., Tobias Wiestler, Jörn Diedrichsen

Brain and Mind Institute Researchers' Publications

Motor-skill learning can be accompanied by both increases and decreases in brain activity. Increases may indicate neural recruitment, while decreases may imply that a region became unimportant or developed a more efficient representation of the skill. These overlapping mechanisms make interpreting learning-related changes of spatially averaged activity difficult. Here we show that motor-skill acquisition is associated with the emergence of highly distinguishable activity patterns for trained movement sequences, in the absence of average activity increases. During functional magnetic resonance imaging, participants produced either four trained or four untrained finger sequences. Using multivariate pattern analysis, both untrained and trained sequences could …