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Concurrent coding

William Severa, Ojas Parekh, Conrad D James, James B Aimone
The dentate gyrus forms a critical link between the entorhinal cortex and CA3 by providing a sparse version of the signal. Concurrent with this increase in sparsity, a widely accepted theory suggests the dentate gyrus performs pattern separation-similar inputs yield decorrelated outputs. Although an active region of study and theory, few logically rigorous arguments detail the dentate gyrus's (DG) coding. We suggest a theoretically tractable, combinatorial model for this action. The model provides formal methods for a highly redundant, arbitrarily sparse, and decorrelated output signal...
October 20, 2016: Neural Computation
Camilla Callegari, Lorenza Bertù, Melissa Lucano, Marta Ielmini, Elena Braggio, Simone Vender
BACKGROUND: In recent years resilience has gained clinical relevance in sociological, psychological, and medical disciplines, and a lot of scales measuring resilience have been developed and have been utilized in the western countries. The aim of the study was to assess the psychometric properties of the Italian version of the 14-item Resilience Scale (RS-14), by describing its validity and reliability. As agreed with the authors of the original English version of the RS-14, it was translated into Italian...
2016: Psychology Research and Behavior Management
Adina C Rusu, Tamar Pincus
Depression is a common feature of chronic pain, but the content of depressed cognitions in groups with chronic pain may be qualitatively different from other depressed groups. Future thinking has been extensively studied in depressed population, however, to our knowledge this is the first study to investigate future thinking, using a verbal fluency task, in chronic pain. This study investigated the content of cognitions about the future, which are postulated to be a key mechanism in the development of clinical depression, but have not been studies in groups with chronic pain...
October 1, 2016: Pain
Ambrose Hon-Wai Wong, Joan Combellick, Beth Ann Wispelwey, Allison Squires, Maureen Gang
OBJECTIVES: The emergency department (ED) has been recognized as a high-risk environment for workplace violence. Acutely agitated patients who perpetrate violence against healthcare workers represent a complex care challenge in the ED. Recommendations to improve safety are often based on expert opinion rather than empirical data. In this study we aim to describe the lived experience of staff members caring for this population in order to provide a broad perspective of ED patient violence...
October 15, 2016: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
Douglas McLelland, Rufin VanRullen
Several theories have been advanced to explain how cross-frequency coupling, the interaction of neuronal oscillations at different frequencies, could enable item multiplexing in neural systems. The communication-through-coherence theory proposes that phase-matching of gamma oscillations between areas enables selective processing of a single item at a time, and a later refinement of the theory includes a theta-frequency oscillation that provides a periodic reset of the system. Alternatively, the theta-gamma neural code theory proposes that a sequence of items is processed, one per gamma cycle, and that this sequence is repeated or updated across theta cycles...
October 2016: PLoS Computational Biology
Chaoyang Hu, Quanlin Li, Xuefang Shen, Sheng Quan, Hong Lin, Lei Duan, Yifa Wang, Qian Luo, Guorun Qu, Qing Han, Yuan Lu, Dabing Zhang, Zheng Yuan, Jianxin Shi
Elucidation of the metabolic pathways determining pigmentation and their underlying regulatory mechanisms in maize kernels is of high importance in attempts to improve the nutritional composition of our food. In this study, we compared dynamics in the transcriptome and metabolome between colored SW93 and white SW48 by integrating RNA-Seq and non-targeted metabolomics. Our data revealed that expression of enzyme coding genes and levels of primary metabolites decreased gradually from 11 to 21 DAP, corresponding well with the physiological change of developing maize kernels from differentiation through reserve accumulation to maturation, which was cultivar independent...
October 14, 2016: Scientific Reports
Kristy Kummerow Broman, Li-Ching Huang, Adil Faqih, Sharon E Phillips, Rebeccah B Baucom, Richard A Pierce, Michael D Holzman, Kenneth W Sharp, Benjamin K Poulose
BACKGROUND: Ventral hernia repair with mesh is increasingly common, but the incidence of long term complications that necessitate mesh explantation is unknown. We aimed to determine the epidemiology of mesh explantation after ventral hernia repair and to compare this with common bile duct injury, a dreaded complication of laparoscopic cholecystectomy. STUDY DESIGN: We evaluated a retrospective cohort of patients undergoing ventral hernia repair by linking the all-payers State Inpatient Databases and State Ambulatory Surgery Databases for NY, CA, and FL...
October 7, 2016: Journal of the American College of Surgeons
Joseph A Boscarino, H Lester Kirchner, James M Pitcavage, Vijay R Nadipelli, Naoko A Ronquest, Michael H Fitzpatrick, John J Han
OBJECTIVE: Opioid overdoses (ODs) have been increasing, and harm reduction efforts are a priority. The success of these efforts will be dependent on the identification of at-risk patients and improved access to the antidote naloxone. Therefore, to identify access to naloxone and factors associated with negative health outcomes, we conducted a retrospective study of patients with OD to identify those at highest risk of adverse outcomes and to assess the use of naloxone. METHODS: We conducted a study of electronic health records for patients admitted to the largest multihospital system in the region - the Geisinger Health System (GHS) for ODs - from April 2005 through March 2015...
2016: Substance Abuse and Rehabilitation
M Magill, Timothy R Apodaca, Justin Walthers, Jacques Gaume, Ayla Durst, Richard Longabaugh, Robert L Stout, Kathleen M Carroll
The present work provides an overview, and pilot reliability and validity for the Alcohol Intervention Mechanisms Scale (AIMS). The AIMS measures therapist interventions that occur broadly across modalities of behavioral treatment for alcohol use disorder. It was developed based on identified commonalities in the function rather than content of therapist interventions in observed therapy sessions, as well as from existing observer rating systems. In the AIMS, the primary function areas are: explore (four behavior count codes), teach (five behavior count codes), and connect (three behavior count codes)...
November 2016: Journal of Substance Abuse Treatment
Ying Sun, Wen-Fei Li, Nian-Yong Chen, Ning Zhang, Guo-Qing Hu, Fang-Yun Xie, Yan Sun, Xiao-Zhong Chen, Jin-Gao Li, Xiao-Dong Zhu, Chao-Su Hu, Xiang-Ying Xu, Yuan-Yuan Chen, Wei-Han Hu, Ling Guo, Hao-Yuan Mo, Lei Chen, Yan-Ping Mao, Rui Sun, Ping Ai, Shao-Bo Liang, Guo-Xian Long, Bao-Min Zheng, Xing-Lai Feng, Xiao-Chang Gong, Ling Li, Chun-Ying Shen, Jian-Yu Xu, Ying Guo, Yu-Ming Chen, Fan Zhang, Li Lin, Ling-Long Tang, Meng-Zhong Liu, Jun Ma
BACKGROUND: The value of adding cisplatin, fluorouracil, and docetaxel (TPF) induction chemotherapy to concurrent chemoradiotherapy in locoregionally advanced nasopharyngeal carcinoma is unclear. We aimed to compare TPF induction chemotherapy plus concurrent chemoradiotherapy with concurrent chemoradiotherapy alone in a suitably powered trial. METHODS: We did an open-label, phase 3, multicentre, randomised controlled trial at ten institutions in China. Patients with previously untreated, stage III-IVB (except T3-4N0) nasopharyngeal carcinoma, aged 18-59 years without severe comorbidities were enrolled...
September 26, 2016: Lancet Oncology
Yao-Tung Lee, Hsin-Chien Lee, Chaur-Jongh Hu, Li-Kai Huang, Shu-Ping Chao, Chia-Pei Lin, Emily Chia-Yu Su, Yi-Chen Lee, Chu-Chieh Chen
OBJECTIVES: To determine whether periodontitis is a modifiable risk factor for dementia. DESIGN: Prospective cohort study. SETTING: National Health Insurance Research Database in Taiwan. PARTICIPANTS: Individuals aged 65 and older with periodontitis (n = 3,028) and an age- and sex-matched control group (n = 3,028). MEASUREMENTS: Individuals with periodontitis were compared age- and sex-matched controls with for incidence density and hazard ratio (HR) of new-onset dementia...
September 29, 2016: Journal of the American Geriatrics Society
Rufin VanRullen
A growing number of studies endeavor to reveal periodicities in sensory and cognitive functions, by comparing the distribution of ongoing (pre-stimulus) oscillatory phases between two (or more) trial groups reflecting distinct experimental outcomes. A systematic relation between the phase of spontaneous electrophysiological signals, before a stimulus is even presented, and the eventual result of sensory or cognitive processing for that stimulus, would be indicative of an intrinsic periodicity in the underlying neural process...
2016: Frontiers in Neuroscience
Shengdong Chen, Xinyang Sun, Wei Niu, Lingming Kong, Mingjun He, Wanshuai Li, Aifang Zhong, Jim Lu, Liyi Zhang
BACKGROUND Dysfunction of long non-coding RNAs (lncRNAs) has been demonstrated to be involved in psychiatric diseases. However, the expression patterns and functions of the regulatory lncRNAs in schizophrenia (SZ) patients have rarely been systematically reported. MATERIAL AND METHODS The lncRNAs in peripheral blood mononuclear cells (PBMCs) were screened and compared between the SZ patients and demographically-matched healthy controls using microarray analysis, and then were validated by quantitative real-time reverse transcription polymerase chain reaction (qRT-PCR) method...
September 21, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Robert J Spencer, Katherine A Kitchen Andren, Annalise Rahman-Filipiak
Incidental learning (IL) measures provide complementary assessment data reflecting subconscious encoding of information using methods that differ from the procedures of many traditional memory tests. We examined the concurrent validity of an IL measure based on the coding subtest of the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS). Participants included veterans referred for outpatient neuropsychological testing. Performance on the IL procedures correlated more strongly with memory indices than other indices on the RBANS...
September 20, 2016: Applied Neuropsychology. Adult
Michael L Ganz, Jieruo Liu, Kelly H Zou, Tarun Bhagnani, Xuemei Luo
OBJECTIVES: Although much has been published about the demographic and clinical characteristics of elderly patients with overactive bladder (OAB) who were enrolled in clinical trials, very little is known about the general population of elderly Americans with OAB. We update this gap in the literature by using real-world data to describe this population. METHODS: We used Medicare claims and the Medicare Current Beneficiary Surveys from 2006 to 2011 to identify patients with OAB...
September 20, 2016: Current Medical Research and Opinion
Amy M Lavery, Brenda L Banwell, Geraldine Liu, Amy T Waldman
BACKGROUND: The onset of multiple sclerosis (MS) during childhood or adolescence is increasingly recognized in the United States. Administrative databases quantify healthcare utilization as measured by hospital admissions, providing insight into the impact of MS in the pediatric population. OBJECTIVE: We examine the frequency of hospital admissions for pediatric MS in the US using the Pediatric Health Information System (PHIS) database. METHODS: Data was extracted from the PHIS database using the ICD-9 code for MS (340...
September 2016: Multiple Sclerosis and related Disorders
Thomas S Maldonado, Sheila N Blumberg, Sharvil U Sheth, Gabriel Perreault, Mikel Sadek, Todd Berland, Mark A Adelman, Caron B Rockman
BACKGROUND: Mesenteric venous thrombosis (MVT) is a relatively uncommon but potentially lethal condition associated with bowel ischemia and infarction. The natural history and long-term outcomes are poorly understood and under-reported. METHODS: A single-institution retrospective review of noncirrhotic patients diagnosed with MVT from 1999 to 2015 was performed using International Classification of Diseases, Ninth Revision and radiology codes. Patients were excluded if no radiographic imaging was available for review...
October 2016: Journal of Vascular Surgery. Venous and Lymphatic Disorders
Mirabelle Sajisevi, Kristine Schulz, Derek D Cyr, Daniel Wojdyla, Richard M Rosenfeld, Debara Tucci, David L Witsell
OBJECTIVE: To estimate the nonadherence rate of pressure equalization (tympanostomy) tube (PET) placement in the preceding 3-year period before release of the 2013 American Academy of Otolaryngology-Head and Neck Surgery Foundation clinical practice guideline (CPG). STUDY DESIGN: Analysis of the Truven Health MarketScan Research Databases (2010-2012). SUBJECTS AND METHODS: Medical claims data from 2010 to 2012 were analyzed. Children aged ≤12 years with otitis media (OM)-related diagnoses were identified...
September 13, 2016: Otolaryngology—Head and Neck Surgery
Kameron J Moding, Cynthia A Stifter
The purpose of the present study was to investigate whether temperamental approach/withdrawal processes were concurrently and longitudinally associated with parent ratings and behavioral observations of food neophobia at 4.5 years of age. Additionally, maternal feeding practices were examined as potential moderators of the association between toddler temperament and food neophobia. Data were drawn from a longitudinal study following individuals (n = 82) from infancy through early childhood. At 18 months of age, toddlers were observed in an unfamiliar laboratory setting with an experimenter and their reactions were coded...
September 10, 2016: Appetite
Benjamin P Pritchard, Edmond Chow
We present an efficient implementation of the Obara-Saika algorithm for the computation of electron repulsion integrals that utilizes vector intrinsics to calculate several primitive integrals concurrently in a SIMD vector. Initial benchmarks display a 2-4 times speedup with AVX instructions over comparable scalar code, depending on the basis set. Speedup over scalar code is found to be sensitive to the level of contraction of the basis set, and is best for (lAlB|lClD) quartets when lD  = 0 or lB=lD=0, which makes such a vectorization scheme particularly suitable for density fitting...
October 30, 2016: Journal of Computational Chemistry
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