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https://www.readbyqxmd.com/read/28351004/temporal-changes-in-the-prevalence-of-disordered-eating-behaviors-among-adolescents-living-in-the-metropolitan-area-of-rio-de-janeiro-brazil
#1
Danilo Dias Santana, Erica Guimarães Barros, Rosana Salles da Costa, Gloria Valeria da Veiga
To investigate temporal changes in the prevalence of disordered eating behaviors among adolescents, and their association with socio demographic factors and overweight. Using probability sampling, two population-based cross-sectional surveys were conducted: one in 2005 (n=511) and the other in 2010 (n=314). The frequency of disordered eating behaviors (binge eating, strict dieting or fasting and compensatory behaviors) was investigated using a self-administered questionnaire. The presence of binge eating increased by 18...
March 21, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28351003/experimental-investigation-of-cognitive-and-affective-empathy-in-borderline-personality-disorder-effects-of-ambiguity-in-multimodal-social-information-processing
#2
Inga Niedtfeld
Borderline personality disorder (BPD) is characterized by affective instability and interpersonal problems. In the context of social interaction, impairments in empathy are proposed to result in inadequate social behavior. In contrast to findings of reduced cognitive empathy, some authors suggested enhanced emotional empathy in BPD. It was investigated whether ambiguity leads to decreased cognitive or emotional empathy in BPD. Thirty-four patients with BPD and thirty-two healthy controls were presented with video clips, which were presented through prosody, facial expression, and speech content...
March 23, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28350467/relating-chromophoric-and-structural-disorder-in-conjugated-polymers
#3
Lena Simine, Peter J Rossky
The optoelectronic properties of amorphous conjugated polymers are sensitive to the details of the conformational disorder and spectroscopy provides the means for structural characterization of the fragments of the chain which interact with light - "chromophores". A faithful interpretation of spectroscopic conformational signatures, however, presents a theoretical challenge. Here we investigate the relationship between the ground state optical gaps, the properties of the excited states, and the structural features of chromophores of a single molecule poly(3-hexyl)-thiophene (P3HT), using quantum-classical atomistic simulations...
March 28, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28346889/quantifying-the-dynamics-of-emotional-expressions-in-family-therapy-of-patients-with-anorexia-nervosa
#4
Laurent Pezard, Karyn Doba, Annick Lesne, Jean-Louis Nandrino
Emotional interactions have been considered dynamical processes involved in the affective life of humans and their disturbances may induce mental disorders. Most studies of emotional interactions have focused on dyadic behaviors or self-reports of emotional states but neglected the dynamical processes involved in family therapy. The main objective of this study is to quantify the dynamics of emotional expressions and their changes using the family therapy of patients with anorexia nervosa as an example. Nonlinear methods characterize the variability of the dynamics at the level of the whole therapeutic system and reciprocal influence between the participants during family therapy...
March 23, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28346056/alcohol-and-drug-use-and-aberrant-drug-related-behavior-among-patients-on-chronic-opioid-therapy
#5
Cynthia I Campbell, Andrea H Kline-Simon, Michael Von Korff, Kathleen W Saunders, Constance Weisner
OBJECTIVE: To better identify individuals on chronic opioid therapy (COT) at high risk for aberrant-drug related behavior (ADRB). We examine whether patients with low level alcohol and drug use have similar characteristics to those with alcohol and drug disorders. We then examined the relationship of alcohol and drug use to ADRBs among COT patients. METHODS: The sample was 972 randomly selected COT patients (age 21-80 years old) from a large health system in Northern California, USA, and interviewed in 2009...
March 27, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28346043/structural-abnormalities-in-the-primary-somatosensory-cortex-and-a-normal-behavioral-profile-in-contactin-5-deficient-mice
#6
Kristel T E Kleijer, Denise van Nieuwenhuize, Henk A Spierenburg, Sara Gregorio-Jordan, Martien J H Kas, J Peter H Burbach
Contactin-5 (Cntn5) is an immunoglobulin cell adhesion molecule that is exclusively expressed in the central nervous system. In view of its association with neurodevelopmental disorders, particularly autism spectrum disorder (ASD), this study focused on Cntn5-positive areas in the forebrain and aimed to explore the morphological and behavioral phenotypes of the Cntn5 null mutant (Cntn5(-/-)) mouse in relation to these areas and ASD symptomatology. A newly generated antibody enabled us to elaborately describe the spatial expression pattern of Cntn5 in P7 wild type (Cntn5(+/+)) mice...
March 27, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28345868/immune-system-activation-and-depression-roles-of-serotonin-in-the-central-nervous-system-and-periphery
#7
Matthew James Robson, Meagan A Quinlan, Randy D Blakely
Serotonin (5-hydroxytryptamine, 5-HT) has long been recognized as a key contributor to the regulation of mood and anxiety and is strongly associated with the etiology of major depressive disorder (MDD). Although more known for its roles within the central nervous system (CNS), 5-HT is recognized to modulate several key aspects of immune system function that may contribute to the development of MDD. Copious amounts of research have outlined a connection between alterations in immune system function, inflammation status and MDD...
March 27, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28345858/enhanced-absorption-performance-of-carbon-nanostructure-based-metamaterials-and-tuning-impedance-matching-behavior-by-an-external-ac-electric-field
#8
Reza Gholipur, Zahra Khorshidi, Ali Bahari
Metamaterials have surprisingly broadened the range of available practical applications in new devices such as shielding, microwave absorbing, and novel antenna. More researches are related to the tuning DNG frequency bands of ordered or disordered metamaterials, and far less research has focused on the importance of impedance matching behavior, and is not effort and attention in adjusting the magnitude of negative permittivity values. This is particularly important if devices deal with low amplitude signals such as radio or TV antenna...
March 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28345269/multi-task-diagnosis-for-autism-spectrum-disorders-using-multi-modality-features-a-multi-center-study
#9
Jun Wang, Qian Wang, Jialin Peng, Dong Nie, Feng Zhao, Minjeong Kim, Han Zhang, Chong-Yaw Wee, Shitong Wang, Dinggang Shen
Autism spectrum disorder (ASD) is a neurodevelopment disease characterized by impairment of social interaction, language, behavior, and cognitive functions. Up to now, many imaging-based methods for ASD diagnosis have been developed. For example, one may extract abundant features from multi-modality images and then derive a discriminant function to map the selected features toward the disease label. A lot of recent works, however, are limited to single imaging centers. To this end, we propose a novel multi-modality multi-center classification (M3CC) method for ASD diagnosis...
March 27, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28345118/effect-of-paullinia-cupana-mart-commercial-extract-during-the-aging-of-middle-age-wistar-rats-differential-effects-on-the-hippocampus-and-striatum
#10
Moara Rodrigues Mingori, Luana Heimfarth, Charles Francisco Ferreira, Henrique Mautone Gomes, Karla Suzana Moresco, Jeferson Delgado, Sabrina Roncato, Fares Zeidán-Chuliá, Daniel Pens Gelain, José Cláudio Fonseca Moreira
During aging, there is a marked decline in the antioxidant capacity of brain tissue, leading to a gradual loss of the antioxidant/oxidant balance, which causes oxidative damage. The effects of Paullinia cupana Mart. extract, which is described as being rich in caffeine and many polyphenol compounds, on the central nervous system have not been extensively investigated. The aim of this study was to therefore investigate the effect of a commercial guarana extract (CGE) on cognitive function, oxidative stress, and brain homeostasis proteins related to cognitive injury and senescence in middle age, male Wistar rats...
March 27, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28345108/specific-contributions-of-age-of-onset-callous-unemotional-traits-and-impulsivity-to-reactive-and-proactive-aggression-in-youths-with-conduct-disorders
#11
Sébastien Urben, Stéphanie Habersaat, Sandrine Pihet, Maya Suter, Jill de Ridder, Philippe Stéphan
Youths with conduct disorders (CD) are particularly studied for their violent and aggressive behaviors. Many researchers considered aggressive behaviors as being either reactive or proactive. Moreover, factors such as age of CD onset, impulsivity, and callous-unemotional traits, separately, have been related to these different types of aggressive behaviors. However, very few studies addressed the combined contribution of these three factors on proactive and reactive aggression. This question was tested in a sample composed of 43 male adolescents with CD...
March 27, 2017: Psychiatric Quarterly
https://www.readbyqxmd.com/read/28344974/assessing-preferences-for-animals-in-children-with-autism-a-new-use-for-video-based-preference-assessment
#12
REVIEW
Noémie A Guérin, Kerri E Rodriguez, Matthew T Brodhead, Marguerite E O'Haire
The inclusion of animals into interventions for children with autism spectrum disorder (ASD) is a growing practice known as animal-assisted intervention (AAI). The choice of the animal to include in an intervention is often solely up to the interventionist and depends on their experience, subjective judgment, and ease of access to different animals. For individuals with ASD who are non-verbal and unable to indicate preferred stimuli or activities, incorporating preference into interventions has been linked to increases in positive behaviors and enhanced quality of life...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28344643/goliah-gaming-open-library-for-intervention-in-autism-at-home-a-6-month-single-blind-matched-controlled-exploratory-study
#13
Anne-Lise Jouen, Antonio Narzisi, Jean Xavier, Elodie Tilmont, Nicolas Bodeau, Valentina Bono, Nabila Ketem-Premel, Salvatore Anzalone, Koushik Maharatna, Mohamed Chetouani, Filippo Muratori, David Cohen
BACKGROUND: To meet the required hours of intensive intervention for treating children with autism spectrum disorder (ASD), we developed an automated serious gaming platform (11 games) to deliver intervention at home (GOLIAH) by mapping the imitation and joint attention (JA) subset of age-adapted stimuli from the Early Start Denver Model (ESDM) intervention. Here, we report the results of a 6-month matched controlled exploratory study. METHODS: From two specialized clinics, we included 14 children (age range 5-8 years) with ASD and 10 controls matched for gender, age, sites, and treatment as usual (TAU)...
2017: Child and Adolescent Psychiatry and Mental Health
https://www.readbyqxmd.com/read/28344568/time-is-money-the-decision-making-of-smartphone-high-users-in-gain-and-loss-intertemporal-choice
#14
Zixuan Tang, Huijun Zhang, An Yan, Chen Qu
Nowadays the smartphone plays an important role in our lives. While it brings us convenience and efficiency, its overuse can cause problems. Although a great number of studies have demonstrated that people affected by substance abuse, pathological gambling, and internet addiction disorder have lower self-control than average, scarcely any study has investigated the decision making of smartphone high users by using a behavioral paradigm. The present study employed an intertemporal task, the Smartphone Addiction Inventory (SPAI) and the Barratt Impulsiveness Scale 11th version (BIS-11) to explore the decision control of smartphone high users in a sample of 125 college students...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28344067/upregulation-of-orexin-hypocretin-expression-in-aged-rats-effects-on-feeding-latency-and-neurotransmission-in-the-insular-cortex
#15
Janel M Hagar, Victoria A Macht, Steven P Wilson, James R Fadel
Aging is associated with changes in numerous homeostatic functions, such as food intake, that are thought to be mediated by the hypothalamus. Orexin/hypocretin neurons of the hypothalamus regulate several physiological functions, including feeding, sleep and wakefulness. Evidence from both clinical and animal studies supports the notion that aging is associated with loss or dysregulation of the orexin system. Here, we used virus-mediated gene transfer to manipulate expression of orexin peptides in young and aged rats and examined behavioral and neurochemical correlates of food intake in these animals...
March 23, 2017: Neuroscience
https://www.readbyqxmd.com/read/28343697/modeling-avoidance-in-mood-and-anxiety-disorders-using-reinforcement-learning
#16
Anahit Mkrtchian, Jessica Aylward, Peter Dayan, Jonathan P Roiser, Oliver J Robinson
BACKGROUND: Serious and debilitating symptoms of anxiety are the most common mental health problem worldwide, accounting for around 5% of all adult years lived with disability in the developed world. Avoidance behavior-avoiding social situations for fear of embarrassment, for instance-is a core feature of such anxiety. However, as for many other psychiatric symptoms the biological mechanisms underlying avoidance remain unclear. METHODS: Reinforcement learning models provide formal and testable characterizations of the mechanisms of decision making; here, we examine avoidance in these terms...
February 8, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28343630/de-novo-truncating-mutations-in-the-last-and-penultimate-exons-of-ppm1d-cause-an-intellectual-disability-syndrome
#17
Sandra Jansen, Sinje Geuer, Rolph Pfundt, Rachel Brough, Priyanka Ghongane, Johanna C Herkert, Elysa J Marco, Marjolein H Willemsen, Tjitske Kleefstra, Mark Hannibal, Joseph T Shieh, Sally Ann Lynch, Frances Flinter, David R FitzPatrick, Alice Gardham, Birgitta Bernhard, Nicola Ragge, Ruth Newbury-Ecob, Raphael Bernier, Malin Kvarnung, E A Helena Magnusson, Marja W Wessels, Marjon A van Slegtenhorst, Kristin G Monaghan, Petra de Vries, Joris A Veltman, Christopher J Lord, Lisenka E L M Vissers, Bert B A de Vries
Intellectual disability (ID) is a highly heterogeneous disorder involving at least 600 genes, yet a genetic diagnosis remains elusive in ∼35%-40% of individuals with moderate to severe ID. Recent meta-analyses statistically analyzing de novo mutations in >7,000 individuals with neurodevelopmental disorders highlighted mutations in PPM1D as a possible cause of ID. PPM1D is a type 2C phosphatase that functions as a negative regulator of cellular stress-response pathways by mediating a feedback loop of p38-p53 signaling, thereby contributing to growth inhibition and suppression of stress-induced apoptosis...
March 18, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/28343366/motor-learning-in-animal-models-of-parkinson-s-disease-aberrant-synaptic-plasticity-in-the-motor-cortex
#18
REVIEW
Tonghui Xu, Shaofang Wang, Rupa R Lalchandani, Jun B Ding
In Parkinson's disease (PD), dopamine depletion causes major changes in the brain, resulting in the typical cardinal motor features of the disease. PD neuropathology has been restricted to postmortem examinations, which are limited to only a single time of PD progression. Models of PD in which dopamine tone in the brain is chemically or physically disrupted are valuable tools in understanding the mechanisms of the disease. The basal ganglia have been well studied in the context of PD, and circuit changes in response to dopamine loss have been linked to the motor dysfunctions in PD...
March 25, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28343342/caregiver-teacher-concordance-of-challenging-behaviors-in-children-with-autism-spectrum-disorder-served-in-community-mental-health-settings
#19
Nicole Stadnick, Colby Chlebowski, Lauren Brookman-Frazee
Children with autism spectrum disorder (ASD) exhibit high rates of challenging behaviors that impair functioning and represent the primary presenting problem in mental health (MH) services. Obtaining symptom reports from multiple informants is critical for treatment planning. This study evaluated caregiver-teacher concordance of ratings of the intensity of challenging behaviors in children with ASD receiving MH services, and identified child clinical factors associated with concordance. This sample included 141 children (M = 9...
March 25, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28343195/research-of-the-protection-actions-of-derived-2-oxoindole-in-acute-stress
#20
Ruslan V Lutsenko, Andrei V Vakhnenko, Elena V Vlasova
INTRODUCTION: Correction of pathological anxiety and stress level of frustration leads to the development of new anxiolytics, notably including derivatives of 2-oksoyndolyn- 3-hlyoksylic acid. The aim of work - to study the effect of 2-oksyindolin-3-hlyoksylic acid on emotional and behavioral reactions of rats subjected to behavioral stress tests of different averiability. MATERIALS AND METHODS: In experiments on 150 white mature male rats Wistar investigated the effects of 2-oksoindolin (2-hydroxy-N-naphthalene-1-yl-2-(2-hydroxy-1,2- dihydro-indole-3-ylidene)-acetamide) with laboratory codes 18 when intraperitoneally administered to acute immobilization stress on Sel'ye on emotional and behavioral responses of animals to test «open field», «a raised cross maze» and test «conflict behavior» (option Vogel)...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
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