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https://www.readbyqxmd.com/read/29667564/the-recency-ratio-as-predictor-of-early-mci
#1
Davide Bruno, Rebecca L Koscik, John L Woodard, Nunzio Pomara, Sterling C Johnson
ABSTRACTObjectives:Individuals with Alzheimer's disease (AD) present poor immediate primacy recall accompanied by intact or exaggerated recency, which then tends to decline after a delay. Bruno et al. (Journal of Clinical and Experimental Neuropsychology, Vol. 38, 2016, pp. 967-973) have shown that higher ratio scores between immediate and delayed recency (i.e. the recency ratio; Rr) are associated with cognitive decline in high-functioning older individuals. We tested whether Rr predicted conversion to early mild cognitive impairment (early MCI) from a cognitively healthy baseline...
April 18, 2018: International Psychogeriatrics
https://www.readbyqxmd.com/read/29658989/the-effectiveness-of-a-group-self-management-education-course-for-adults-with-poorly-controlled-epilepsy-smile-uk-a-randomized-controlled-trial
#2
Leone Ridsdale, Gabriella Wojewodka, Emily J Robinson, Adam J Noble, Myfanwy Morgan, Stephanie J C Taylor, Paul McCrone, Mark P Richardson, Gus Baker, Sabine Landau, Laura H Goldstein
OBJECTIVE: Epilepsy is one of the most common neurological conditions affecting about 1% of adults. Up to 40% of people with epilepsy (PWE) report recurring seizures while on medication. And optimal functioning requires good self-management. Our objective was to evaluate a group self-management education courses for people with epilepsy and drug-resistant seizures by means of a multicenter, pragmatic, parallel group, randomized controlled trial. METHODS: We recruited adults with epilepsy, having ≥2 seizures in the prior 12 months, from specialist clinics...
April 16, 2018: Epilepsia
https://www.readbyqxmd.com/read/29648866/a-spacing-account-of-negative-recency-in-final-free-recall
#3
Joel R Kuhn, Lynn J Lohnas, Michael J Kahana
The well-known recency effect in immediate free recall reverses when subjects attempt to recall items studied and tested on a series of prior lists, as in the final-free-recall procedure (Craik, 1970). In this case, the last few items on each list are actually remembered less well than are the midlist items. Because dual-store theories of recall naturally predict negative recency, this phenomenon has long been cited as evidence favoring these models. In a final-free-recall study, we replicate the negative-recency effect for the within-list serial position curve and the positive-recency effect for the between-list serial position curve...
April 12, 2018: Journal of Experimental Psychology. Learning, Memory, and Cognition
https://www.readbyqxmd.com/read/29643821/influence-of-an-intermediate-option-on-the-description-experience-gap-and-information-search
#4
Neha Sharma, Shoubhik Debnath, Varun Dutt
Research shows that people tend to overweight small probabilities in description and underweight them in experience, thereby leading to a different pattern of choices between description and experience; a phenomenon known as the Description-Experience (DE) gap. However, little is known on how the addition of an intermediate option and contextual framing influences the DE gap and people's search strategies. This paper tests the effects of an intermediate option and contextual framing on the DE gap and people's search strategies, where problems require search for information before a consequential choice...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29606560/biospecimens-and-the-abcd-study-rationale-methods-of-collection-measurement-and-early-data
#5
REVIEW
Kristina A Uban, Megan K Horton, Joanna Jacobus, Charles Heyser, Wesley K Thompson, Susan F Tapert, Pamela A F Madden, Elizabeth R Sowell
Biospecimen collection in the Adolescent Brain Cognitive Development (ABCD) study - of hair samples, shed deciduous (baby) teeth, and body fluids - will serve dual functions of screening for study eligibility, and providing measures of biological processes thought to predict or correlate with key study outcomes on brain and cognitive development. Biosamples are being collected annually to screen for recency of drug use prior to the neuroimaging or cognitive testing visit, and to store for the following future studies: (1) on the effects of exposure to illicit and recreational drugs (including alcohol and nicotine); (2) of pubertal hormones on brain and cognitive developmental trajectories; (3) on the contribution of genomics and epigenomics to child and adolescent development and behavioral outcomes; and (4) with pre- and post-natal exposure to environmental neurotoxicants and drugs of abuse measured from novel tooth analyses...
March 16, 2018: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/29524359/competition-for-the-focus-of-attention-in-visual-working-memory-perceptual-recency-versus-executive-control
#6
Graham J Hitch, Yanmei Hu, Richard J Allen, Alan D Baddeley
Previous research on memory for a short sequence of visual stimuli indicates that access to the focus of attention (FoA) can be achieved in either of two ways. The first is automatic and is indexed by the recency effect, the enhanced retention of the final item. The second is strategic and based on instructions to prioritize items differentially, a process that draws on executive capacity and boosts retention of information deemed important. In both cases, the increased level of retention can be selectively reduced by presenting a poststimulus distractor (or suffix)...
March 10, 2018: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29512866/exposure-to-childhood-adversity-and-deficits-in-emotion-recognition-results-from-a-large-population-based-sample
#7
Erin C Dunn, Katherine M Crawford, Thomas W Soare, Katherine S Button, Miriam R Raffeld, Andrew D A C Smith, Ian S Penton-Voak, Marcus R Munafò
BACKGROUND: Emotion recognition skills are essential for social communication. Deficits in these skills have been implicated in mental disorders. Prior studies of clinical and high-risk samples have consistently shown that children exposed to adversity are more likely than their unexposed peers to have emotion recognition skills deficits. However, only one population-based study has examined this association. METHODS: We analyzed data from children participating in the Avon Longitudinal Study of Parents and Children, a prospective birth cohort (n = 6,506)...
March 7, 2018: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/29498434/predictive-movements-and-human-reinforcement-learning-of-sequential-action
#8
Roy de Kleijn, George Kachergis, Bernhard Hommel
Sequential action makes up the bulk of human daily activity, and yet much remains unknown about how people learn such actions. In one motor learning paradigm, the serial reaction time (SRT) task, people are taught a consistent sequence of button presses by cueing them with the next target response. However, the SRT task only records keypress response times to a cued target, and thus it cannot reveal the full time-course of motion, including predictive movements. This paper describes a mouse movement trajectory SRT task in which the cursor must be moved to a cued location...
March 2, 2018: Cognitive Science
https://www.readbyqxmd.com/read/29494181/repetition-lag-training-eliminates-age-related-recollection-deficits-and-gains-are-maintained-after-three-months-but-does-not-transfer-implications-for-the-fractionation-of-recollection
#9
Nicole D Anderson, Patricia L Ebert, Cheryl L Grady, Janine M Jennings
The objectives of this study were to replicate age-related decrements in recollection and source memory, and to determine if repetition lag training improves recollection and whether these effects maintain and transfer to other tasks. Sixteen young adults and 46 healthy older adults participated, the latter of whom comprised hi-old (n = 16) and lo-old (n = 30) based on neuropsychological memory tests. All participants completed memory tests and questionnaires at baseline, and then half of the lo-old underwent nine days of repetition lag training while the other half engaged in a 9-day active control program...
February 2018: Psychology and Aging
https://www.readbyqxmd.com/read/29492785/comparing-cognition-by-integrating-concept-learning-proactive-interference-and-list-memory
#10
REVIEW
Anthony A Wright, Debbie M Kelly, Jeffrey S Katz
This article describes an approach for training a variety of species to learn the abstract concept of same/different, which in turn forms the basis for testing proactive interference and list memory. The stimulus set for concept-learning training was progressively doubled from 8, 16, 32, 64, 128 . . . to 1,024 different pictures with novel-stimulus transfer following learning. All species fully learned the same/different abstract concept: capuchin and rhesus monkeys learned more readily than pigeons; nutcrackers and magpies were at least equivalent to monkeys and transferred somewhat better following initial training sets...
February 28, 2018: Learning & Behavior
https://www.readbyqxmd.com/read/29478418/what-life-course-theoretical-models-best-explain-the-relationship-between-exposure-to-childhood-adversity-and-psychopathology-symptoms-recency-accumulation-or-sensitive-periods
#11
Erin C Dunn, Thomas W Soare, Miriam R Raffeld, Daniel S Busso, Katherine M Crawford, Kathryn A Davis, Virginia A Fisher, Natalie Slopen, Andrew D A C Smith, Henning Tiemeier, Ezra S Susser
BACKGROUND: Although childhood adversity is a potent determinant of psychopathology, relatively little is known about how the characteristics of adversity exposure, including its developmental timing or duration, influence subsequent mental health outcomes. This study compared three models from life course theory (recency, accumulation, sensitive period) to determine which one(s) best explained this relationship. METHODS: Prospective data came from the Avon Longitudinal Study of Parents and Children (n = 7476)...
February 26, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29450792/examination-of-long-term-visual-memorization-capacity-in-the-clark-s-nutcracker-nucifraga-columbiana
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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