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https://www.readbyqxmd.com/read/29450792/examination-of-long-term-visual-memorization-capacity-in-the-clark-s-nutcracker-nucifraga-columbiana
#1
Muhammad A J Qadri, Kevin Leonard, Robert G Cook, Debbie M Kelly
Clark's nutcrackers exhibit remarkable cache recovery behavior, remembering thousands of seed locations over the winter. No direct laboratory test of their visual memory capacity, however, has yet been performed. Here, two nutcrackers were tested in an operant procedure used to measure different species' visual memory capacities. The nutcrackers were incrementally tested with an ever-expanding pool of pictorial stimuli in a two-alternative discrimination task. Each picture was randomly assigned to either a right or a left choice response, forcing the nutcrackers to memorize each picture-response association...
February 15, 2018: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/29444192/correction-exploring-the-relationship-between-experiential-avoidance-coping-functions-and-the-recency-and-frequency-of-self-harm
#2
Emma Nielsen, Kapil Sayal, Ellen Townsend
[This corrects the article DOI: 10.1371/journal.pone.0159854.].
2018: PloS One
https://www.readbyqxmd.com/read/29432773/identifying-patterns-of-general-practitioner-service-utilisation-and-their-relationship-with-potentially-preventable-hospitalisations-in-people-with-diabetes-the-utility-of-a-cluster-analysisapproach
#3
Ninh Thi Ha, Mark Harris, David Preen, Suzanne Robinson, Rachael Moorin
AIMS: We aimed to characterise use of general practitioners (GP) simultaneously across multiple attributes in people with diabetes and examine its impact on diabetes related potentially preventable hospitalisations (PPHs). METHODS: Five-years of panel data from 40,625 adults with diabetes were sourced from Western Australian administrative health records. Cluster analysis (CA) was used to group individuals with similar patterns of GP utilisation characterised by frequency and recency of services...
February 9, 2018: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29432105/learning-a-continuous-time-streaming-video-qoe-model
#4
Deepti Ghadiyaram, Janice Pan, Alan C Bovik
Over-the-top adaptive video streaming services are frequently impacted by fluctuating network conditions that can lead to rebuffering events (stalling events) and sudden bitrate changes. These events visually impact video consumers' quality of experience (QoE) and can lead to consumer churn. The development of models that can accurately predict viewers' instantaneous subjective QoE under such volatile network conditions could potentially enable the more efficient design of quality-control protocols for media-driven services, such as YouTube, Amazon, Netflix, and so on...
May 2018: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/29427230/comparison-of-self-report-to-biomarkers-of-recent-hiv-infection-findings-from-the-start-trial
#5
Katherine E Schlusser, Shweta Sharma, Pola de la Torre, Giuseppe Tambussi, Rika Draenert, Angie N Pinto, Julia A Metcalf, Danielle German, James D Neaton, Oliver Laeyendecker
Identifying individuals with recent HIV infection is critical to research related to viral reservoirs, outbreak investigations and intervention applications. A multi-assay algorithm (MAA) for recency of infection was used in conjunction with self-reported date of infection and documented date of diagnosis to estimate the number of participants recently infected in the Strategic Timing of AntiRetroviral Treatment (START) trial. We tested samples for three groups of participants from START using a MAA: (1) 167 individuals who reported being infected ≤ 6 months before randomization; (2) 771 individuals who did not know their date of infection but were diagnosed within 6 months before randomization; and (3) as controls for the MAA, 199 individuals diagnosed with HIV ≥ 2 years before randomization...
February 9, 2018: AIDS and Behavior
https://www.readbyqxmd.com/read/29388471/person-perception-from-changing-emotional-expressions-primacy-recency-or-averaging-effect
#6
Xia Fang, Gerben A van Kleef, Disa A Sauter
Dynamic changes in emotional expressions are a valuable source of information in social interactions. As the expressive behaviour of a person changes, the inferences drawn from the behaviour may also change. Here, we test the possibility that dynamic changes in emotional expressions affect person perception in terms of stable trait attributions. Across three experiments, we examined perceivers' inferences about others' personality traits from changing emotional expressions. Expressions changed from one emotion ("start emotion") to another emotion ("end emotion"), allowing us to disentangle potential primacy, recency, and averaging effects...
February 1, 2018: Cognition & Emotion
https://www.readbyqxmd.com/read/29385082/how-effectively-do-people-remember-voice-disordered-speech-an-investigation-of-the-serial-position-curve
#7
Scott R Schroeder, Hannah N Rembrandt
We examined how well typical adult listeners remember the speech of a person with a voice disorder (relative to that of a person without a voice disorder). Participants (n = 40) listened to two lists of words (one list uttered in a disordered voice and the other list uttered in a normal voice). After each list, participants completed a free recall test, in which they tried to remember as many words as they could. While the total number of words recalled did not differ between the disordered voice condition and the normal voice condition, an investigation of the serial-position curve revealed a difference...
January 31, 2018: Brain Sciences
https://www.readbyqxmd.com/read/29370332/deployment-and-preterm-birth-among-united-states-army-soldiers
#8
Jonathan G Shaw, D Alan Nelson, Kate A Shaw, Kelly Woolaway-Bickel, Ciaran S Phibbs, Lianne M Kurina
With increasing integration of women into combat roles in the United States military, it is critical to determine whether deployment, which entails unique stressors and exposures, is associated with adverse reproductive outcomes. Few studies have examined if deployment increases the risk of preterm birth; no studies have examined a recent cohort of servicewomen. We therefore used linked medical and administrative data from the Stanford Military Data Repository for all United States Army soldiers with deliveries between 2011-2014 to estimate the associations between prior deployment, recency of deployment, posttraumatic stress disorder and spontaneous preterm birth, adjusting for socio-demographic, military-service, and health-related factors...
January 12, 2018: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29302843/a-bayesian-analysis-of-prenatal-maternal-factors-predicting-nonadherence-to-infant-hiv-medication-in-south-africa
#9
R R Cook, K Peltzer, S M Weiss, V J Rodriguez, D L Jones
While efforts to prevent mother-to-child transmission of HIV been successful in some districts in South Africa, rates remain unacceptably high in others. This study utilized Bayesian logistic regression to examine maternal-level predictors of adherence to infant nevirapine prophylaxis, including intimate partner violence, maternal adherence, HIV serostatus disclosure reaction, recency of HIV diagnosis, and depression. Women (N = 303) were assessed during pregnancy and 6 weeks postpartum. Maternal adherence to antiretroviral therapy during pregnancy predicted an 80% reduction in the odds of infant nonadherence [OR 0...
January 4, 2018: AIDS and Behavior
https://www.readbyqxmd.com/read/29284009/hiv-1-envelope-sequence-based-diversity-measures-for-identifying-recent-infections
#10
Alexis Kafando, Eric Fournier, Bouchra Serhir, Christine Martineau, Florence Doualla-Bell, Mohamed Ndongo Sangaré, Mohamed Sylla, Annie Chamberland, Mohamed El-Far, Hugues Charest, Cécile L Tremblay
Identifying recent HIV-1 infections is crucial for monitoring HIV-1 incidence and optimizing public health prevention efforts. To identify recent HIV-1 infections, we evaluated and compared the performance of 4 sequence-based diversity measures including percent diversity, percent complexity, Shannon entropy and number of haplotypes targeting 13 genetic segments within the env gene of HIV-1. A total of 597 diagnostic samples obtained in 2013 and 2015 from recently and chronically HIV-1 infected individuals were selected...
2017: PloS One
https://www.readbyqxmd.com/read/29274593/oral-contraceptive-use-as-a-determinant-of-plasma-concentrations-of-perfluoroalkyl-substances-among-women-in-the-norwegian-mother-and-child-cohort-moba-study
#11
Elise L Rush, Alison B Singer, Matthew P Longnecker, Line S Haug, Azemira Sabaredzovic, Elaine Symanski, Kristina W Whitworth
OBJECTIVE: Because oral contraceptives (OC) tends to lessen menstrual fluid loss - a route of excretion for perfluoroalkyl substances (PFASs) - we hypothesized that such use would be positively associated with PFAS concentrations. METHODS: This analysis was based on the Norwegian Mother and Child Cohort (MoBa) study. We included 1090 women from two previous substudies of women enrolled from 2003 to 2007. Characteristics of OC use were obtained at baseline: use in the past 12months, duration and recency of use, age at first use...
December 19, 2017: Environment International
https://www.readbyqxmd.com/read/29274048/a-comparison-of-serial-order-short-term-memory-effects-across-verbal-and-musical-domains
#12
Simon Gorin, Pierre Mengal, Steve Majerus
Recent studies suggest that the mechanisms involved in the short-term retention of serial order information may be shared across short-term memory (STM) domains such as verbal and visuospatial STM. Given the intrinsic sequential organization of musical material, the study of STM for musical information may be particularly informative about serial order retention processes and their domain-generality. The present experiment examined serial order STM for verbal and musical sequences in participants with no advanced musical expertise and experienced musicians...
December 22, 2017: Memory & Cognition
https://www.readbyqxmd.com/read/29239630/a-meta-analytic-review-of-two-modes-of-learning-and-the-description-experience-gap
#13
Dirk U Wulff, Max Mergenthaler-Canseco, Ralph Hertwig
People can learn about the probabilistic consequences of their actions in two ways: One is by consulting descriptions of an action's consequences and probabilities (e.g., reading up on a medication's side effects). The other is by personally experiencing the probabilistic consequences of an action (e.g., beta testing software). In principle, people taking each route can reach analogous states of knowledge and consequently make analogous decisions. In the last dozen years, however, research has demonstrated systematic discrepancies between description- and experienced-based choices...
December 14, 2017: Psychological Bulletin
https://www.readbyqxmd.com/read/29226786/temporal-grouping-effects-in-musical-short-term-memory
#14
Simon Gorin, Pierre Mengal, Steve Majerus
Recent theoretical accounts of verbal and visuo-spatial short-term memory (STM) have proposed the existence of domain-general mechanisms for the maintenance of serial order information. These accounts are based on the observation of similar behavioural effects across several modalities, such as temporal grouping effects. Across two experiments, the present study aimed at extending these findings, by exploring a STM modality that has received little interest so far, STM for musical information. Given its inherent rhythmic, temporal and serial organisation, the musical domain is of interest for investigating serial order STM processes such as temporal grouping...
December 11, 2017: Memory
https://www.readbyqxmd.com/read/29225353/urban-landscape-genomics-identifies-fine-scale-gene-flow-patterns-in-an-avian-invasive
#15
G W Low, B Chattopadhyay, K M Garg, M Irestedt, Pgp Ericson, G Yap, Q Tang, S Wu, F E Rheindt
Invasive species exert a serious impact on native fauna and flora and have been the target of many eradication and management efforts worldwide. However, a lack of data on population structure and history, exacerbated by the recency of many species introductions, limits the efficiency with which such species can be kept at bay. In this study we generated a novel genome of high assembly quality and genotyped 4735 genome-wide single nucleotide polymorphic (SNP) markers from 78 individuals of an invasive population of the Javan Myna Acridotheres javanicus across the island of Singapore...
December 11, 2017: Heredity
https://www.readbyqxmd.com/read/29209942/the-contribution-of-stimulus-frequency-and-recency-to-set-size-effects
#16
Félice van 't Wout
Hick's law describes the increase in choice reaction time (RT) with the number of stimulus-response (S-R) mappings. However, in choice RT experiments, set-size is typically confounded with stimulus recency and frequency: With a smaller set-size, each stimulus occurs on average more frequently and more recently than with a larger set-size. To determine to what extent stimulus recency and frequency contribute to the set-size effect, stimulus set-size was manipulated independently of stimulus recency and frequency, by keeping recency and frequency constant for a subset of the stimuli...
December 5, 2017: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/29200611/serial-position-output-order-and-list-length-effects-for-words-presented-on-smartphones-over-very-long-intervals
#17
Cathleen Cortis Mack, Caterina Cinel, Nigel Davies, Michael Harding, Geoff Ward
Three experiments examined whether or not benchmark findings observed in the immediate retrieval from episodic memory are similarly observed over much greater time-scales. Participants were presented with experimentally-controlled lists of words at the very slow rate of one word every hour using an iPhone recall application, RECAPP, which was also used to recall the words in either any order (free recall: Experiments 1 to 3) or the same order as presented (serial recall: Experiment 3). We found strong temporal contiguity effects, weak serial position effects with very limited recency, and clear list length effects in free recall; clear primacy effects and classic error gradients in serial recall; and recency effects in a final two-alternative forced choice recognition task (Experiments 2 and 3)...
December 2017: Journal of Memory and Language
https://www.readbyqxmd.com/read/29195764/suicide-screening-in-primary-care-use-of-an-electronic-screener-to-assess-suicidality-and-improve-provider-follow-up-for-adolescents
#18
Dillon J Etter, Allison McCord, Fangqian Ouyang, Amy Lewis Gilbert, Rebekah L Williams, James A Hall, Wanzhu Tu, Stephen M Downs, Matthew C Aalsma
PURPOSE: The purpose of this study was to assess the feasibility of using an existing computer decision support system to screen adolescent patients for suicidality and provide follow-up guidance to clinicians in a primary care setting. Predictors of patient endorsement of suicidality and provider documentation of follow-up were examined. METHODS: A prospective cohort study was conducted to examine the implementation of a CDSS that screened adolescent patients for suicidality and provided follow-up recommendations to providers...
November 28, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/29192386/sequential-neighborhood-effects-the-effect-of-long-term-exposure-to-concentrated-disadvantage-on-children-s-reading-and-math-test-scores
#19
Andrew L Hicks, Mark S Handcock, Narayan Sastry, Anne R Pebley
Prior research has suggested that children living in a disadvantaged neighborhood have lower achievement test scores, but these studies typically have not estimated causal effects that account for neighborhood choice. Recent studies used propensity score methods to account for the endogeneity of neighborhood exposures, comparing disadvantaged and nondisadvantaged neighborhoods. We develop an alternative propensity function approach in which cumulative neighborhood effects are modeled as a continuous treatment variable...
November 30, 2017: Demography
https://www.readbyqxmd.com/read/29191514/perceived-neighborhood-characteristics-predict-severity-and-emotional-response-to-daily-stressors
#20
Stacey B Scott, Elizabeth Munoz, Jacqueline A Mogle, Alyssa A Gamaldo, Joshua M Smyth, David M Almeida, Martin J Sliwinski
RATIONALE: Neighborhood characteristics may influence health and well-being outcomes through stressors in daily life. OBJECTIVES: This study tested whether a varied set of perceived characteristics of neighborhood (i.e., social cohesion, safety, aesthetic quality, violence) predicted stressor frequency and severity as well as negative emotional responses to stressors. We predicted greater reported cohesion and safety and less violence would be associated with less frequent stressor exposure and severity and less intense negative affect following stressors; we conducted subsequent tests of neighborhood aesthetic quality as a predictor...
November 9, 2017: Social Science & Medicine
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