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https://www.readbyqxmd.com/read/28549354/the-facespan-the-perceptual-span-for-face-recognition
#1
Michael Papinutto, Junpeng Lao, Meike Ramon, Roberto Caldara, Sébastien Miellet
In reading, the perceptual span is a well-established concept that refers to the amount of information that can be read in a single fixation. Surprisingly, despite extensive empirical interest in determining the perceptual strategies deployed to process faces and an ongoing debate regarding the factors or mechanism(s) underlying efficient face processing, the perceptual span for faces-the Facespan-remains undetermined. To address this issue, we applied the gaze-contingent Spotlight technique implemented in an old-new face recognition paradigm...
May 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28549353/crowding-visual-awareness-and-their-respective-neural-loci
#2
Kilho Shin, Susana T L Chung, Bosco S Tjan
In peripheral vision, object identification can be impeded when a target object is flanked by other objects. This phenomenon of crowding has been attributed to basic processes associated with image encoding by the visual system, but the neural origin of crowding is not known. Determining whether crowding depends on subjective awareness of the flankers can provide information on the neural origin of crowding. However, recent studies that manipulated flanker awareness have yielded conflicting results. In the current study, we suppressed flanker awareness with two methods: interocular suppression (IOS) and adaptation-induced blindness (AIB)...
May 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28548836/inter-granular-cracking-as-a-major-cause-of-long-term-capacity-fading-of-layered-cathodes
#3
Hao Liu, Mark Wolf, Khim Karki, Young-Sang Yu, Eric A Stach, Jordi Cabana, Karena W Chapman, Peter J Chupas
Capacity fading has limited commercial layered Li-ion battery electrodes to <70% of their theoretical capacity. Higher capacities can be achieved initially by charging to higher voltages, however, these gains are eroded by a faster fade in capacity. Increasing lifetimes and reversible capacity are contingent on identifying the origin of this capacity fade to inform electrode design and synthesis. We used operando X-ray diffraction, to observe how the lithiation-delithiation reactions within a LiNi0.8Co0...
May 26, 2017: Nano Letters
https://www.readbyqxmd.com/read/28545351/assessing-coronary-blood-flow-physiology-in-the-cardiac-catheterisation-laboratory
#4
Sethumadhavan Vijayan, David S Barmby, Ian R Pearson, Andrew G Davies, Stephen B Wheatcroft, Mohan Sivananthan
Contemporary management of coronary disease focuses on the treatment of stenoses in the major epicardial vessels. However, myocardial blood flow is known to be contingent on a range of factors in addition to the patency of the epicardial vessels. These include anatomical and physiological factors such as the extent of myocardium supplied by the vessel, systemic blood pressure, the natural variation in vascular tone in response to physiological needs which allows for coronary autoregulation and pathological factors such as the presence of downstream obstruction to flow due to disease of the small coronary vessels or myocardium...
May 24, 2017: Current Cardiology Reviews
https://www.readbyqxmd.com/read/28545122/spot-a-novel-and-streamlined-microarray-platform-for-observing-cellular-trna-levels
#5
Simon Grelet, Ariel McShane, Eveline Hok, Jensen Tomberlin, Philip H Howe, Renaud Geslain
Recent studies have placed transfer RNA (tRNA), a housekeeping molecule, in the heart of fundamental cellular processes such as embryonic development and tumor progression. Such discoveries were contingent on the concomitant development of methods able to deliver high-quality tRNA profiles. The present study describes the proof of concept obtained in Escherichia coli (E. coli) for an original tRNA analysis platform named SPOt (Streamlined Platform for Observing tRNA). This approach comprises three steps. First, E...
2017: PloS One
https://www.readbyqxmd.com/read/28544862/narcissistic-force-meets-systemic-resistance-the-energy-clash-model
#6
Constantine Sedikides, W Keith Campbell
This article focuses on the interplay between narcissistic leaders and organizations. It attempts to capture the gist of this interplay with a model outlining the narcissistic organizational trajectory. The Energy Clash Model borrows and adapts a phase/state physics metaphor to conceptualize narcissism as a force that enters or emerges in a stable system (i.e., organization) as a leader, destabilizes it, and stabilizes it at a different state or is expelled. The model consists of three time-contingent phases: perturbation, conflict, and resolution...
May 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
https://www.readbyqxmd.com/read/28543630/preliminary-validation-of-the-perceived-locus-of-causality-scale-for-academic-motivation-in-the-context-of-university-studies-ploc-u
#7
Manuel Sánchez de Miguel, Izarne Lizaso, Daniel Hermosilla, Carlos-Maria Alcover, Marios Goudas, Enrique Arranz-Freijó
BACKGROUND: Research has shown that self-determination theory can be useful in the study of motivation in sport and other forms of physical activity. The Perceived Locus of Causality (PLOC) scale was originally designed to study both. AIM: The current research presents and validates the new PLOC-U scale to measure academic motivation in the university context. We tested levels of self-determination before and after academic examinations. Also, we analysed degree of internalization of extrinsic motivation in students' practical activities...
May 25, 2017: British Journal of Educational Psychology
https://www.readbyqxmd.com/read/28542222/differential-expression-of-islet-glutaredoxin-1-and-5-with-high-reactive-oxygen-species-production-in-a-mouse-model-of-diabesity
#8
Sebastian Friedrich Petry, Fatemeh Sharifpanah, Heinrich Sauer, Thomas Linn
The onset and progression of diabetes mellitus type 2 is highly contingent on the amount of functional beta-cell mass. An underlying cause of beta-cell decay in diabetes is oxidative stress, which markedly affects the insulin producing pancreatic cells due to their poor antioxidant defence capacity. Consequently, disturbances of cellular redox signaling have been implicated to play a major role in beta-cell loss in diabetes mellitus type 2. There is evidence suggesting that the glutaredoxin (Grx) system exerts a protective role for pancreatic islets, but the exact mechanisms have not yet been elucidated...
2017: PloS One
https://www.readbyqxmd.com/read/28541890/event-triggered-model-predictive-control-for-embedded-artificial-pancreas-systems
#9
Ankush Chakrabarty, Stamatina Zavitsanou, Francis Doyle Iii, Eyal Dassau
OBJECTIVE: The development of artificial pancreas (AP) technology for deployment in low-energy, embedded devices is contingent upon selecting an efficient control algorithm for regulating glucose in people with type 1 diabetes mellitus (T1DM). In this paper, we aim to lower the energy consumption of the AP by reducing controller updates, that is, the number of times the decision-making algorithm is invoked to compute an appropriate insulin dose. METHODS: Physiological insights into glucose management are leveraged to design an event-triggered model predictive controller (MPC) that operates efficiently, without compromising patient safety...
May 23, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28541407/insular-and-ventrolateral-orbitofrontal-cortices-differentially-contribute-to-goal-directed-behavior-in-rodents
#10
Shauna L Parkes, Pascal M Ravassard, Juan-Carlos Cerpa, Mathieu Wolff, Guillaume Ferreira, Etienne Coutureau
The medial prefrontal cortex (mPFC) has long been considered a critical site in action control. However, recent evidence indicates that the contribution of cortical areas to goal-directed behavior likely extends beyond mPFC. Here, we examine the function of both insular (IC) and ventrolateral orbitofrontal (vlOFC) cortices in action-dependent learning. We used chemogenetics to study the consequences of IC or vlOFC inhibition on acquisition and performance of instrumental actions using the outcome devaluation task...
May 25, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28541081/meta-analysis-of-the-effects-of-academic-interventions-and-modifications-on-student-behavior-outcomes
#11
Kristy Warmbold-Brann, Matthew K Burns, June L Preast, Crystal N Taylor, Lisa N Aguilar
The current study examined the effect of academic interventions and modifications on behavioral outcomes in a meta-analysis of 32 single-case design studies. Academic interventions included modifying task difficulty, providing instruction in reading, mathematics, or writing, and contingent reinforcement for academic performance. There was an overall small to moderate effect (ϕ = .56) on behavioral outcomes, with a stronger effect on increasing time on task (ϕ = .64) than on decreasing disruptive behavior (ϕ = ...
May 25, 2017: School Psychology Quarterly
https://www.readbyqxmd.com/read/28539993/effectiveness-of-non-pharmacological-interventions-on-stereotyped-and-repetitive-behaviors-of-pre-school-children-with-autism-a-systematic-review
#12
REVIEW
Hadi Zarafshan, Maryam Salmanian, Soudeh Aghamohammadi, Mohammad Reza Mohammadi, Seyed-Ali Mostafavi
INTRODUCTION: The present study aimed to review the literature on non-pharmacological interventions used to treat stereotyped and repetitive behaviors by a systematic method. METHODS: Two authors independently performed a search strategy on Medline/PubMed, Scopus and PsycINFO on English articles published up to April 23, 2014 with relevant search keywords. We also reviewed the bibliographies of retrieved articles and conference proceedings to obtain additional citations and references...
March 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/28539613/optogenetic-excitation-of-cholinergic-inputs-to-hippocampus-primes-future-contextual-fear-associations
#13
Sarah Hersman, Jesse Cushman, Noah Lemelson, Kate Wassum, Shahrdad Lotfipour, Michael S Fanselow
Learning about context is essential for appropriate behavioral strategies, but important contingencies may not arise during initial learning. A variant of contextual fear conditioning, context pre-exposure facilitation, allows us to directly test the relationship between novelty-induced acetylcholine release and later contextual associability. We demonstrate that optogenetically-enhanced acetylcholine during initial contextual exploration leads to stronger fear after subsequent pairing with shock, suggesting that novelty-induced acetylcholine release primes future contextual associations...
May 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28539416/the-extinction-of-cocaine-seeking-requires-a-window-of-infralimbic-pyramidal-neuron-activity-after-unreinforced-lever-presses
#14
Andrea L Gutman, Kelle E Nett, Caitlin V Cosme, Wensday R Worth, Subhash C Gupta, John A Wemmie, Ryan T LaLumiere
The infralimbic cortex (IL) mediates the extinction learning and active suppression of cocaine-seeking behavior. However, the precise temporal relationship among IL activity, lever pressing, and extinction learning is unclear. To address this issue, we employed activity-guided optogenetics in male Sprague-Dawley rats to optically silence IL pyramidal neurons for 20 s immediately following unreinforced lever presses during early extinction training after cocaine self-administration. Optical inhibition of the IL increased active lever pressing during shortened extinction sessions but did not alter the retention of the extinction learning as assessed in ensuing extinction sessions with no optical inhibition...
May 24, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28537007/from-anticipation-to-integration-the-role-of-integrated-action-effects-in-building-sensorimotor-contingencies
#15
Thomas Camus, Bernhard Hommel, Lionel Brunel, Thibaut Brouillet
Ideomotor approaches to action control have provided evidence that the activation of an anticipatory image of previously learned action-effects plays a decisive role in action selection. This study sought for converging evidence by combining three previous experimental paradigms: the response-effect compatibility protocol introduced by Kunde (Journal of Experimental Psychology: Human Perception and Performance, 27(2), 387-394, 2001), the acquisition-test paradigm developed by Elsner and Hommel (Journal of Experimental Psychology: Human Perception and Performance, 27(1), 229, 2001), and the object-action compatibility manipulation of Tucker and Ellis (Visual Cognition, 8(6), 769-800, 2001)...
May 23, 2017: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/28535991/predictors-and-delays-associated-with-the-need-for-advanced-techniques-for-intravenous-access
#16
Michael D Witting, Siamak Moayedi, Latoya A Brown, Ammar Ismail
BACKGROUND: The need for advanced techniques for intravenous access (ATIVA) can lead to delays in care and contribute to emergency department (ED) crowding. OBJECTIVE: In this article, we estimate the delay and predictors associated with the need for ATIVA. METHODS: In this case-control study, we collected data from ED cases requiring ATIVA and control patients in whom i.v. access was gained by traditional inspection and palpation. We included two control groups-a random retrospective sample and a prospective limited convenience sample...
May 20, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28533899/genetic-diversity-and-structure-of-an-endangered-desert-shrub-and-the-implications-for-conservation
#17
Zhihao Su, Bryce A Richardson, Li Zhuo, Xiaolong Jiang, Wenjun Li, Xiaoshan Kang
Population genetic information can provide valuable insight for the conservation and management of threatened and endangered plant species. Tamarix taklamakanensis is an endangered shrub endemic to arid basins of northwestern China. This species serves to stabilize soils in this region, but has seen substantial loss in its abundance due to depletion of ground water. The populations of this species have become small and fragmented, warranting conservation. Seven microsatellite loci were used to assess the genetic diversity and structure of 15 populations in the Tarim Basin, China...
May 2017: AoB Plants
https://www.readbyqxmd.com/read/28532572/rates-and-causes-of-accidents-for-general-aviation-aircraft-operating-in-a-mountainous-and-high-elevation-terrain-environment
#18
Marisa Aguiar, Alan Stolzer, Douglas D Boyd
BACKGROUND: Flying over mountainous and/or high elevation terrain is challenging due to rapidly changeable visibility, gusty/rotor winds and downdrafts and the necessity of terrain avoidance. Herein, general aviation accident rates and mishap cause/factors were determined (2001-2014) for a geographical region characterized by such terrain. METHODS: Accidents in single piston engine-powered aircraft for states west of the US continental divide characterized by mountainous terrain and/or high elevation (MEHET) were identified from the NTSB database...
May 19, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28531645/judgment-of-moral-and-social-transgression-in-schizophrenia
#19
Jonathan McGuire, Martin Brüne, Robyn Langdon
INTRODUCTION: Despite evidence of pervasive social-cognitive deficits in schizophrenia, little is known of moral cognition in this population. While recent research indicates that impairment of explicit moral reasoning is explained by these individuals' other cognitive deficits, their capacities for basic moral judgment are unknown. METHODS: 45 people with schizophrenia and 27 healthy controls completed the Moral-Conventional Distinction Task: a classic task that assesses judgment of violations of moral or social convention on permissibility, severity, and authority-contingence...
May 4, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28531302/effects-of-financial-incentives-for-smoking-cessation-on-mood-and-anxiety-symptoms-among-pregnant-and-newly-postpartum-women
#20
Ivori Zvorsky, Joan M Skelly, Stephen T Higgins
Introduction: Financial incentives for smoking cessation increase smoking abstinence and decrease Beck Depression Inventory (BDI) scores among depression-prone pregnant and postpartum women. The present study is a secondary analysis using the Brief Symptom Inventory (BSI) to examine whether this treatment impacts a broader array of mood and anxiety symptoms. Methods: Participants (N = 253) were pregnant cigarette smokers who participated in four controlled clinical trials examining the efficacy of financial incentives for smoking cessation...
May 19, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
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