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Intrinsic motivation

Loïc Peter, Marcel Tella-Amo, Dzhoshkun Ismail Shakir, George Attilakos, Ruwan Wimalasundera, Jan Deprest, Sébastien Ourselin, Tom Vercauteren
PURPOSE: The standard clinical treatment of Twin-to-Twin transfusion syndrome consists in the photo-coagulation of undesired anastomoses located on the placenta which are responsible to a blood transfer between the two twins. While being the standard of care procedure, fetoscopy suffers from a limited field-of-view of the placenta resulting in missed anastomoses. To facilitate the task of the clinician, building a global map of the placenta providing a larger overview of the vascular network is highly desired...
March 15, 2018: International Journal of Computer Assisted Radiology and Surgery
Dorothea L Floris, Meng-Chuan Lai, Tanmay Nath, Michael P Milham, Adriana Di Martino
Background: The male predominance in the prevalence of autism spectrum disorder (ASD) has motivated research on sex differentiation in ASD. Multiple sources of evidence have suggested a neurophenotypic convergence of ASD-related characteristics and typical sex differences. Two existing, albeit competing, models provide predictions on such neurophenotypic convergence. These two models are testable with neuroimaging. Specifically, the Extreme Male Brain (EMB) model predicts that ASD is associated with enhanced brain maleness in both males and females with ASD (i...
2018: Molecular Autism
Anne E Cox, Madeline A Roberts, Hailey L Cates, Amanda K McMahon
An aversion to the sensations of physical exertion can deter engagement in physical activity. This is due in part to an associative focus in which individuals are attending to uncomfortable interoceptive cues. The purpose of this study was to test the effect of mindfulness on affective valence, ratings of perceived exertion (RPE), and enjoyment during treadmill walking. Participants ( N =23; M age =19.26, SD = 1.14) were only included in the study if they engaged in no more than moderate levels of physical activity and reported low levels of intrinsic motivation...
2018: International Journal of Exercise Science
Helle Wessel Andersson, Aslak Steinsbekk, Espen Walderhaug, Eli Otterholt, Trond Nordfjærn
Introduction: Dropout from inpatient treatment for substance use disorder (SUD) is an ongoing challenge. The aim of this study was to identify demographic, substance use, and psychological factors that predict dropout from postdetoxification inpatient SUD treatment. Materials and methods: A total of 454 patients from 5 inpatient SUD centers in Central Norway were consecutively included in this naturalistic, prospective cohort study. Results: A total of 132 patients (28%) did not complete the planned treatment stay (dropped out)...
2018: Substance Abuse: Research and Treatment
Trisha L Andrew, Lushuai Zhang, Nongyi Cheng, Morgan Baima, Jae Joon Kim, Linden Allison, Steven Hoxie
Body-mountable electronics and electronically active garments are the future of portable, interactive devices. However, wearable devices and electronic garments are demanding technology platforms because of the large, varied mechanical stresses to which they are routinely subjected, which can easily abrade or damage microelectronic components and electronic interconnects. Furthermore, aesthetics and tactile perception (or feel) can make or break a nascent wearable technology, irrespective of device metrics...
March 9, 2018: Accounts of Chemical Research
Lei Gao, Jia-Tao Sun, Jian-Chen Lu, Hang Li, Kai Qian, Shuai Zhang, Yu-Yang Zhang, Tian Qian, Hong Ding, Xiao Lin, Shixuan Du, Hong-Jun Gao
2D transition metal chalcogenides have attracted tremendous attention due to their novel properties and potential applications. Although 2D transition metal dichalcogenides are easily fabricated due to their layer-stacked bulk phase, 2D transition metal monochalcogenides are difficult to obtain. Recently, a single atomic layer transition metal monochalcogenide (CuSe) with an intrinsic pattern of nanoscale triangular holes is fabricated on Cu(111). The first-principles calculations show that free-standing monolayer CuSe with holes is not stable, while hole-free CuSe is endowed with the Dirac nodal line fermion (DNLF), protected by mirror reflection symmetry...
March 8, 2018: Advanced Materials
Tanveer Talukdar, Francisco J Román, Joachim T Operskalski, Christopher E Zwilling, Aron K Barbey
While an extensive literature in decision neuroscience has elucidated the neurobiological foundations of decision making, prior research has focused primarily on group-level effects in a sample population. Due to the presence of inherent differences between individuals' cognitive abilities, it is also important to examine the neural correlates of decision making that explain interindividual variability in cognitive performance. This study therefore investigated how individual differences in decision making competence, as measured by the Adult Decision Making Competence (A-DMC) battery, are related to functional brain connectivity patterns derived from resting-state fMRI data in a sample of 304 healthy participants...
March 8, 2018: Human Brain Mapping
Jihyun Si
PURPOSE: This study aimed to explore students' learning experience in problem-based learning (PBL) particularly in terms of what they learned and how they learned in one Korean medical school by analyzing their reflective essays with qualitative research methods. METHODS: This study included 44 first-year medical students. They took three consecutive PBL courses and wrote reflective essays 3 times anonymously on the last day of each course. Their reflective essays were analyzed using an inductive content analysis method...
March 2018: Korean Journal of Medical Education
Gill A Ten Hoor, Guy Plasqui, Annemie M W J Schols, Gerjo Kok
BACKGROUND: In this study, the main hypothesis is that heavier people enjoy strength exercises more than normal-weight people, mediated by fat-free mass and muscle strength. Further, it is hypothesized that heavier people are better in strength exercises and enjoy strength exercises more compared to aerobic exercises. METHODS: In a cross-sectional study, height, weight, body composition (i.e., fat mass and fat-free mass by underwater weighing), muscle strength (i...
March 1, 2018: Sports Medicine—Open
A Hines, A C Bundy, M Haertsch, M Wallen
AIM: To explore parent's perspective of their child's participation in a magic-themed intervention called Amazing Magic Club (AMC), and to further our understanding of motivated engagement and the impact of themed group-based interventions for children with unilateral cerebral palsy (CP). METHODS: Twenty-nine parents of children with unilateral CP completed semi-structured interviews. The child participants (n = 28) attended one of three AMCs; average age of the children was 10y 6mo (SD 2y 2mo)...
February 26, 2018: Developmental Neurorehabilitation
Chitra Narayanan, David N Bernard, Khushboo Bafna, Donald Gagné, Chakra S Chennubhotla, Nicolas Doucet, Pratul K Agarwal
Enzyme superfamily members that share common chemical and/or biological functions also share common features. While the role of structure is well characterized, the link between enzyme function and dynamics is not well understood. We present a systematic characterization of intrinsic dynamics of over 20 members of the pancreatic-type RNase superfamily, which share a common structural fold. This study is motivated by the fact that the range of chemical activity as well as molecular motions of RNase homologs spans over 105 folds...
February 13, 2018: Structure
Paul S Jansons, Lauren Robins, Terry P Haines, Lisa O'Brien
BACKGROUND: At present there is no clear evidence to support any one particular intervention for engaging adults with chronic health issues in ongoing exercise. An understanding of consumer perceptions and preferences is important, because low rates of exercise adherence are likely to limit any benefits obtained. OBJECTIVE: To identify and compare participants' perceptions about their own motivation, capacity and opportunity to adhere to an allocated exercise program during either a gym-based or a home-based exercise program with telephone follow-up...
February 19, 2018: Archives of Gerontology and Geriatrics
Besiki Stvilia, Shuheng Wu, Dong Joon Lee
RESEARCHERS’ PARTICIPATION IN ONLINE RIMSS: This article examined how researchers participated in research information management systems (RIMSs), their motivations for participation, and their priorities for those motivations. Profile maintenance, question-answering, and endorsement activities were used to define three cumulatively increasing levels of participation: Readers, Record Managers, and Community Members. Junior researchers were more engaged in RIMSs than were senior researchers...
2018: PloS One
Elien Mabbe, Bart Soenens, Gert-Jan De Muynck, Maarten Vansteenkiste
Prior research among adolescents and emerging adults has provided evidence for the beneficial effects of positive (relative to negative) feedback and an autonomy-supportive (relative to a controlling) communication style on students' intrinsic motivation. Unfortunately, similar experimental research in middle childhood is lacking. Moreover, little attention has been paid to the question of whether individual differences in personality and perceived parenting play a role in these effects. In the current experimental study (N = 110; Mage  = 10...
February 19, 2018: Journal of Experimental Child Psychology
Tyrone J Tolbert, Shinnosuke Nakayama, Maurizio Porfiri
The advent of automated tracking software has significantly reduced the time required to record movement trajectories, thereby facilitating behavioral studies of zebrafish. However, results are substantially influenced by tracking errors, such as loss and misidentification of individuals. In this study, we present the development of an online citizen science platform, Tracking Nemo, to improve data accuracy on swimming trajectories of zebrafish groups. As an online extension of software for tracking the position of zebrafish from video recordings, Tracking Nemo offers volunteers the opportunity to contribute to science by manually correcting tracked trajectory data from their personal computers...
February 22, 2018: Zebrafish
Christophe Habas
Background: Previous ROI-based functional connectivity studies found functional coherence between cerebellum and cerebral amygdale, at rest. Moreover, some neurospychiatric symptoms were accompanied by abnormal activations of these two brain areas. Therefore, the aim of the study was to identify a putative, resting-state intrinsically connected cerebello-amygdaloid network. Methods: ICA-based analysis was performed on brain resting-state functional images of 15 volunteers...
2018: Cerebellum & Ataxias
Chrystal Rutledge, Catharine M Walsh, Nathan Swinger, Marc Auerbach, Danny Castro, Maya Dewan, Mona Khattab, Alyssa Rake, Ilana Harwayne-Gidansky, Tia T Raymond, Tensing Maa, Todd P Chang
Gamification involves the application of game design elements to traditionally non-game contexts. It is increasingly being used as an adjunct to traditional teaching strategies in medical education to engage the millennial learner and enhance adult learning. The extant literature has focused on determining whether the implementation of gamification results in better learning outcomes, leading to a dearth of research examining its theoretical underpinnings within the medical education context. The authors define gamification, explore how gamification works within the medical education context using self-determination theory as an explanatory mechanism for enhanced engagement and motivation, and discuss common roadblocks and challenges to implementing gamification...
February 20, 2018: Academic Medicine: Journal of the Association of American Medical Colleges
Oleksandr V Popovych, Peter A Tass
Demand-controlled deep brain stimulation (DBS) appears to be a promising approach for the treatment of Parkinson's disease (PD) as revealed by computational, pre-clinical and clinical studies. Stimulation delivery is adapted to brain activity, for example, to the amount of neuronal activity considered to be abnormal. Such a closed-loop stimulation setup might help to reduce the amount of stimulation current, thereby maintaining therapeutic efficacy. In the context of the development of stimulation techniques that aim to restore desynchronized neuronal activity on a long-term basis, specific closed-loop stimulation protocols were designed computationally...
2018: Frontiers in Physiology
Elizabeth A Emley, Dara R Musher-Eizenman
Unhealthy lifestyle behaviors, namely poor diet and inadequate physical activity, significantly contribute to poor health and obesity risk, which in turn impact chronic illness outcomes. A possible approach to improving these health behaviors and subsequent outcomes is to capitalize on the theorized link between social movement involvement and overlapping health behaviors. Social movement involvement may be a viable stealth intervention for health, utilizing intrinsic motivators to improve health without an explicit focus on changing health behavior...
February 12, 2018: Health Promotion International
Tyler Earnest, John Andrew Cole, Zaida Luthey-Schulten
The last few decades have revealed the living cell to be a crowded spatially heterogeneous space teeming with biomolecules whose concentrations and activities are governed by intrinsically random forces. It is from this randomness, however, that a vast array of precisely timed and intricately coordinated biological functions emerge that give rise to the complex forms and behaviors we see in the biosphere around us. This seemingly paradoxical nature of life has drawn the interest of an increasing number of physicists, and recent years have seen stochastic modeling grow into a major subdiscipline within biological physics...
February 9, 2018: Reports on Progress in Physics
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