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https://www.readbyqxmd.com/read/28447843/seeing-what-through-why-evidence-from-probing-the-causal-structure-of-hierarchical-motion
#1
Haokui Xu, Ning Tang, Jifan Zhou, Mowei Shen, Tao Gao
Although our world is hierarchically organized, the perception, attention, and memory of hierarchical structures remain largely unknown. The current study shows how a hierarchical motion representation enhances the inference of an object's position in a dynamic display. The motion hierarchy is formed as an acyclic tree in which each node represents a distinctive motion component. Each individual object is instantiated as a node in the tree. In a position inference task, participants were asked to infer the position of a target object, given how it moved jointly with other objects...
April 27, 2017: Journal of Experimental Psychology. General
https://www.readbyqxmd.com/read/28447289/electroencephalographic-evidence-of-abnormal-anticipatory-uncertainty-processing-in-gambling-disorder-patients
#2
Alberto Megías, Juan F Navas, Ana Perandrés-Gómez, Antonio Maldonado, Andrés Catena, José C Perales
Putting money at stake produces anticipatory uncertainty, a process that has been linked to key features of gambling. Here we examined how learning and individual differences modulate the stimulus preceding negativity (SPN, an electroencephalographic signature of perceived uncertainty of valued outcomes) in gambling disorder patients (GDPs) and healthy controls (HCs), during a non-gambling contingency learning task. Twenty-four GDPs and 26 HCs performed a causal learning task under conditions of high and medium uncertainty (HU, MU; null and positive cue-outcome contingency, respectively)...
April 26, 2017: Journal of Gambling Studies
https://www.readbyqxmd.com/read/28445784/brain-potentials-predict-language-selection-before-speech-onset-in-bilinguals
#3
Yan Jing Wu, Guillaume Thierry
Studies of language production in bilinguals have seldom considered the fact that language selection likely involves proactive control. Here, we show that Chinese-English bilinguals actively inhibit the language not-to-be used before the onset of a picture to be named. Depending on the nature of a directive cue, participants named a subsequent picture in their native language, in their second language, or remained silent. The cue elicited a contingent negative variation of event-related brain potentials, greater in amplitude when the cue announced a naming trial as compared to when it announced a silent trial...
April 23, 2017: Brain and Language
https://www.readbyqxmd.com/read/28443616/effects-of-extended-cannabis-abstinence-on-cognitive-outcomes-in-cannabis-dependent-patients-with-schizophrenia-versus-non-psychiatric-controls
#4
Rachel A Rabin, Mera S Barr, Michelle S Goodman, Yarissa Herman, Konstantine K Zakzanis, Stephen J Kish, Michael Kiang, Gary Remington, Tony P George
Cross-sectional studies of the effects of cannabis on cognition in schizophrenia have produced mixed results. Heavy and persistent cannabis use in schizophrenia is a common clinical problem, and effects of controlled abstinence from cannabis in these patients have not been carefully evaluated. The present study sought to determine the effects of cannabis abstinence on cognition in patients with schizophrenia and co-occurring cannabis dependence. We utilized a 28-day cannabis abstinence paradigm to investigate the state-dependent effects of cannabis on select cognitive outcomes in cannabis dependent patients with schizophrenia and non-psychiatric controls...
April 26, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28442335/do-impulsive-individuals-benefit-more-from-food-go-no-go-training-testing-the-role-of-inhibition-capacity-in-the-no-go-devaluation-effect
#5
Zhang Chen, Harm Veling, Ap Dijksterhuis, Rob W Holland
Not responding to food items in a go/no-go task can lead to devaluation of these food items, which may help people regulate their eating behavior. The Behavior Stimulus Interaction (BSI) theory explains this devaluation effect by assuming that inhibiting impulses triggered by appetitive foods elicits negative affect, which in turn devalues the food items. BSI theory further predicts that the devaluation effect will be stronger when food items are more appetitive and when individuals have low inhibition capacity...
April 22, 2017: Appetite
https://www.readbyqxmd.com/read/28442297/vertebral-and-femoral-bone-mineral-density-and-bone-strength-in-prostate-cancer-patients-assessed-in-phantomless-pet-ct-examinations
#6
Benedikt J Schwaiger, David L Kopperdahl, Lorenzo Nardo, Luca Facchetti, Alexandra S Gersing, Jan Neumann, Kwang J Lee, Tony M Keaveny, Thomas M Link
PURPOSE: Bone fracture risk assessed ancillary to positron emission tomography with computed tomography co-registration (PET/CT) could provide substantial clinical value to oncology patients with elevated fracture risk without introducing additional radiation dose. The purpose of our study was to investigate the feasibility of obtaining valid measurements of bone mineral density (BMD) and finite element analysis-derived bone strength of the hip and spine using PET/CT examinations of prostate cancer patients by comparing against values obtained using routine multidetector-row computed tomography (MDCT) scans-as validated in previous studies-as a reference standard...
April 22, 2017: Bone
https://www.readbyqxmd.com/read/28441169/psychosocial-interventions-in-stimulant-use-disorders-a-focus-on-women
#7
Riccardo De Giorgi, Gian L D'Alò, Franco De Crescenzo
PURPOSE OF REVIEW: Stimulant use disorders are significant contributors to the global burden of disease, with a growing impact on women. Psychosocial interventions are the gold standard for treating this condition, but several barriers may prevent women from accessing appropriate treatment. Therefore, we systematically reviewed the most recent findings about psychosocial interventions for stimulant use disorders, focussing on results relevant to women. RECENT FINDINGS: Twenty-two eligible studies were identified...
April 22, 2017: Current Opinion in Psychiatry
https://www.readbyqxmd.com/read/28439320/distractor-induced-blindness-a-special-case-of-contingent-attentional-capture
#8
Gesche N Winther, Michael Niedeggen
The detection of a salient visual target embedded in a rapid serial visual presentation (RSVP) can be severely affected if target-like distractors are presented previously. This phenomenon, known as distractor-induced blindness (DIB), shares the prerequisites of contingent attentional capture (Folk, Remington, & Johnston, 1992). In both, target processing is transiently impaired by the presentation of distractors defined by similar features. In the present study, we investigated whether the speeded response to a target in the DIB paradigm can be described in terms of a contingent attentional capture process...
2017: Advances in Cognitive Psychology
https://www.readbyqxmd.com/read/28438889/fda-approval-summary-nivolumab-for-the-treatment-of-relapsed-or-progressive-classical-hodgkin-lymphoma
#9
Yvette L Kasamon, R Angelo de Claro, Yaping Wang, Yuan Li Shen, Ann T Farrell, Richard Pazdur
On May 17, 2016, after an expedited priority review, the U.S. Food and Drug Administration granted accelerated approval to nivolumab for the treatment of patients with classical Hodgkin lymphoma (cHL) that has relapsed or progressed after autologous hematopoietic stem cell transplantation (HSCT) and post-transplantation brentuximab vedotin (BV). Nivolumab in cHL had been granted breakthrough therapy designation. Accelerated approval was based on two single-arm, multicenter trials in adults with cHL. In 95 patients with relapsed or progressive cHL after autologous HSCT and post-transplantation BV, nivolumab, dosed at 3 mg/kg intravenously every 2 weeks, produced a 65% (95% confidence interval: 55%-75%) objective response rate (58% partial remission, 7% complete remission)...
April 24, 2017: Oncologist
https://www.readbyqxmd.com/read/28438062/associations-of-maternal-obesity-and-smoking-status-with-perinatal-outcomes
#10
Julie K Phillips, Sarah E King, Ira M Bernstein, Joan M Skelly, Stephen T Higgins
Maternal obesity and smoking are associated with adverse perinatal outcomes. These prevalent conditions contribute to health disparities. In this study we examine whether maternal BMI moderates the impact of smoking cessation on short-term perinatal outcomes. This is a secondary analysis of assessments conducted from several prospective clinical trials examining the efficacy of incentives to promote smoking cessation during pregnancy. Participants were randomly assigned to receive financial incentives contingent upon smoking abstinence or a control condition...
April 24, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28437659/the-relationship-between-maternal-education-and-the-neural-substrates-of-phoneme-perception-in-children-interactions-between-socioeconomic-status-and-proficiency-level
#11
Lisa L Conant, Einat Liebenthal, Anjali Desai, Jeffrey R Binder
Relationships between maternal education (ME) and both behavioral performances and brain activation during the discrimination of phonemic and nonphonemic sounds were examined using fMRI in children with different levels of phoneme categorization proficiency (CP). Significant relationships were found between ME and intellectual functioning and vocabulary, with a trend for phonological awareness. A significant interaction between CP and ME was seen for nonverbal reasoning abilities. In addition, fMRI analyses revealed a significant interaction between CP and ME for phonemic discrimination in left prefrontal cortex...
April 21, 2017: Brain and Language
https://www.readbyqxmd.com/read/28437121/follow-up-treatment-effects-of-contingency-management-and-motivational-interviewing-on-substance-use-a-meta-analysis
#12
Caitlin S Sayegh, Stanley J Huey, Erica J Zara, Kinnari Jhaveri
Motivation is an integral factor in substance use treatment and long-term recovery. However, it is unclear what role intrinsic and extrinsic motivation play across different treatment modalities. A meta-analysis (N = 84) was performed to estimate the pooled effect size of Motivational Interviewing (MI; primarily targeting intrinsic motivation) and contingency management (CM; primarily targeting extrinsic motivation) at different follow-up periods. Collapsed across all substance types, CM had a significant effect at 3-month follow-up, only...
April 24, 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
https://www.readbyqxmd.com/read/28436139/improving-scope-sensitivity-in-contingent-valuation-joint-and-separate-evaluation-of-health-states
#13
José Luis Pinto-Prades, José Antonio Robles-Zurita, Fernando-Ignacio Sánchez-Martínez, José María Abellán-Perpiñán, Jorge Martínez-Pérez
We present data of a contingent valuation survey, testing the effect of evaluation mode on the monetary valuation of preventing road accidents. Half of the interviewees was asked to state their willingness to pay (WTP) to reduce the risk of having only 1 type of injury (separate evaluation, SE), and the other half of the sample was asked to state their WTP for 4 types of injuries evaluated simultaneously (joint evaluation, JE). In the SE group, we observed lack of sensitivity to scope while in the JE group WTP increased with the severity of the injury prevented...
April 24, 2017: Health Economics
https://www.readbyqxmd.com/read/28434862/consequences-of-the-oculomotor-cycle-for-the-dynamics-of-perception
#14
Marco Boi, Martina Poletti, Jonathan D Victor, Michele Rucci
Much evidence indicates that humans and other species process large-scale visual information before fine spatial detail. Neurophysiological data obtained with paralyzed eyes suggest that this coarse-to-fine sequence results from spatiotemporal filtering by neurons in the early visual pathway. However, the eyes are normally never stationary: rapid gaze shifts (saccades) incessantly alternate with slow fixational movements. To investigate the consequences of this oculomotor cycle on the dynamics of perception, we combined spectral analysis of visual input signals, neural modeling, and gaze-contingent control of retinal stimulation in humans...
April 17, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28434856/can-ct-and-mr-shape-and-textural-features-differentiate-benign-versus-malignant-pleural-lesions
#15
Elena Pena, MacArinze Ojiaku, Joao R Inacio, Ashish Gupta, D Blair Macdonald, Wael Shabana, Jean M Seely, Frank J Rybicki, Carole Dennie, Rebecca E Thornhill
RATIONALE AND OBJECTIVES: The study aimed to identify a radiomic approach based on CT and or magnetic resonance (MR) features (shape and texture) that may help differentiate benign versus malignant pleural lesions, and to assess if the radiomic model may improve confidence and accuracy of radiologists with different subspecialty backgrounds. MATERIALS AND METHODS: Twenty-nine patients with pleural lesions studied on both contrast-enhanced CT and MR imaging were reviewed retrospectively...
April 20, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28433210/non-tuberculous-mycobacteria-an-emerging-threat
#16
Susana Martínez González, Arantxa Cano Cortés, Luis Alfonso Sota Yoldi, José María García García, Luz María Alba Álvarez, Juan José Palacios Gutiérrez
INTRODUCTION AND OBJECTIVE: Non-tuberculous mycobacteria (NTM) isolates are becoming more common. The main objective of our study was to establish the number and diversity of NTM species in our region and their distribution according to the source sample, age and gender of the patients, and to analyse clinically significant isolates. METHODOLOGY: Prospective study of all NTM isolated in Asturias from 2005 to 2012. Samples were processed following internationally accepted guidelines...
April 19, 2017: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/28432911/lifting-the-lid-on-geographic-complexity-in-the-relationship-between-body-mass-index-and-education-in-china
#17
Maigeng Zhou, Xiaoqi Feng, Jiang Yong, Yichong Li, Mei Zhang, Andrew Page, Thomas Astell-Burt, Wenhua Zhao
In China, rising obesity has coincided with increasing affluence. Few studies have properly accounted for geographic variation, however, which may influence prior results. Using large data with biomarkers in China, we show body mass index (BMI) to be positively correlated with higher person-level education if estimated using ordinary least squares. In stark contrast, fitting the same data within a multilevel model gives the complete opposite result. We go on to show that the relationship between BMI and person-level education in China is dependent upon geography, underlining why multilevel modelling is crucial for revealing these types of people-place contingencies...
April 19, 2017: Health & Place
https://www.readbyqxmd.com/read/28432591/prior-beliefs-influence-symmetrical-or-asymmetrical-generalizations-in-human-causal-learning
#18
Ryoji Nishiyama, Takatoshi Nagaishi, Takahisa Masaki
The generalization decrement between element A and compound AX has shown both symmetrical (Thorwart & Lachnit, 2009) and asymmetrical (Glautier, 2004) patterns in human contingency learning. In a series of experiments we examined the hypothesis that prior beliefs about the relationship between a distinctive element X and an outcome are important for determining the different generalization patterns. Participants learned which given enterobacteria caused a negative or a positive effect on gastrointestinal conditions...
April 21, 2017: Learning & Behavior
https://www.readbyqxmd.com/read/28431947/a-bout-analysis-of-operant-response-disruption
#19
REVIEW
Ryan J Brackney, Timothy H Cheung, Federico Sanabria
Operant behavior appears to be organized in bouts of responses, whose parameters are differentially sensitive to various manipulations. This study investigated potential differential effects of three forms of operant response disruption-extinction (EXT), non-contingent reinforcement (NCR), and prefeeding (PRE)-on response bouts. In Experiment 1, Wistar Kyoto rats (WKY) were trained on a tandem variable-time (VT) 120s fixed-ratio (FR) 5 schedule of reinforcement; after stability was established, their responding was disrupted for three sessions with one of the three disrupters (EXT, NCR, or PRE)...
April 18, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28431689/-behavioral-activation-programs-a-tool-for-treating-depression-efficiently
#20
C Dondé, R Moirand, A Carre
INTRODUCTION: Major depressive disorder (MDD) is a debilitating disorder, and its treatment often requires complex and costly psychological therapies. Behavioral activation (BA) is a simple, effective and affordable psychotherapy recommended in the treatment of MDD. OBJECTIVES: (i) Explain the theoretical basis of BA and its application in clinical practice. (ii) Review the randomized controlled trials examining BA as a treatment for MDD through a systematic search of the existing literature...
April 18, 2017: L'Encéphale
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