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https://www.readbyqxmd.com/read/29140124/apprenticeship-based-training-in-neurogastroenterology-and-motility
#1
Dipesh H Vasant, Amol Sharma, Jigar Bhagatwala, Lavanya Viswanathan, Satish S C Rao
Although neurogastroenterology and motility (NGM) disorders affect 50% of patients seen in clinics, many gastroenterologists receive limited NGM training. One-month apprenticeship-based NGM training has been provided at ten centers in the USA for a decade, however, outcomes of this training are unclear. Our goal was to describe the effectiveness of this program from a trainees perspective. Areas Covered: We describe the training model, learning experiences, and outcomes of one-month apprenticeship-based training in NGM at a center of excellence, using a detailed individual observer account and data from 12 consecutive trainees that completed the program...
November 15, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29078337/importance-of-a-species-socioecology-wolves-outperform-dogs-in-a-conspecific-cooperation-task
#2
Sarah Marshall-Pescini, Jonas F L Schwarz, Inga Kostelnik, Zsófia Virányi, Friederike Range
A number of domestication hypotheses suggest that dogs have acquired a more tolerant temperament than wolves, promoting cooperative interactions with humans and conspecifics. This selection process has been proposed to resemble the one responsible for our own greater cooperative inclinations in comparison with our closest living relatives. However, the socioecology of wolves and dogs, with the former relying more heavily on cooperative activities, predicts that at least with conspecifics, wolves should cooperate better than dogs...
October 31, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29038218/experiential-learning-in-rodents-past-experience-enables-rapid-learning-and-localized-encoding-in-hippocampus
#3
Conor D Cox, Linda C Palmer, Danielle T Pham, Brian H Trieu, Christine M Gall, Gary Lynch
Humans routinely use past experience with complexity to deal with novel, challenging circumstances. This fundamental aspect of real-world behavior has received surprisingly little attention in animal studies, and the underlying brain mechanisms are unknown. The present experiments tested for transfer from past experience in rats and then used quantitative imaging to localize synaptic modifications in hippocampus. Six daily exposures to an enriched environment (EE) caused a marked enhancement of short- and long-term memory encoded during a 30-min session in a different and complex environment relative to rats given extensive handling or access to running wheels...
November 2017: Learning & Memory
https://www.readbyqxmd.com/read/29030593/fish-perform-like-mammals-and-birds-in-inhibitory-motor-control-tasks
#4
Tyrone Lucon-Xiccato, Elia Gatto, Angelo Bisazza
Inhibitory control is an executive function that positively predicts performance in several cognitive tasks and has been considered typical of vertebrates with large and complex nervous systems such as primates. However, evidence is growing that some fish species have evolved complex cognitive abilities in spite of their relatively small brain size. We tested whether fish might also show enhanced inhibitory control by subjecting guppies, Poecilia reticulata, to the motor task used to test warm-blooded vertebrates...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28906274/flexible-bronchoscope-use-by-pulmonologists-in-collaboration-with-gastroenterologists-for-placement-of-percutaneous-endoscopic-gastrostomy-via-transnasal-route-in-patients-with-head-and-neck-cancer-a-10-year-experience-in-a-single-cancer-institution
#5
Paulo J L Mota, Jorge Dionísio, José Duro da Costa, Sandra Faias
This study was conducted with the aim of evaluating a 10-year experience in the Pulmonology Department of a cancer center for percutaneous endoscopic gastrostomy through transnasal route (TN-PEG) in patients with head and neck cancer whose oral access is precluded. This study was a retrospective analysis of 40 consecutive head and neck cancer patients referred for PEG placement, between 2005 and 2014, using a transnasal route because of the impossibility of intubation through the oral cavity. Demographics, outcome of TN-PEG procedure, indications for bronchoscopic approach (prophylactic/palliative), clinical need for bronchoscopy (trismus, oropharyngeal obstruction), location of cancer, complications, and overall survival were reviewed...
September 12, 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28898600/rapid-associative-learning-and-stable-long-term-memory-in-the-squid-euprymna-scolopes
#6
Emily A Zepeda, Robert J Veline, Robyn J Crook
Learning and memory in cephalopod molluscs have received intensive study because of cephalopods' complex behavioral repertoire and relatively accessible nervous systems. While most of this research has been conducted using octopus and cuttlefish species, there has been relatively little work on squid. Euprymna scolopes Berry, 1913, a sepiolid squid, is a promising model for further exploration of cephalopod cognition. These small squid have been studied in detail for their symbiotic relationship with bioluminescent bacteria, and their short generation time and successful captive breeding through multiple generations make them appealing models for neurobiological research...
June 2017: Biological Bulletin
https://www.readbyqxmd.com/read/28876358/animal-models-in-biological-and-biomedical-research-experimental-and-ethical-concerns
#7
Monica L Andersen, Lucile M F Winter
Animal models have been used in experimental research to increase human knowledge and contribute to finding solutions to biological and biomedical questions. However, increased concern for the welfare of the animals used, and a growing awareness of the concept of animal rights, has brought a greater focus on the related ethical issues. In this review, we intend to give examples on how animals are used in the health research related to some major health problems in Brazil, as well as to stimulate discussion about the application of ethics in the use of animals in research and education, highlighting the role of National Council for the Control of Animal Experimentation (Conselho Nacional de Controle de Experimentação Animal - CONCEA) in these areas...
September 4, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28798355/active-lead-in-variability-affects-motor-memory-formation-and-slows-motor-learning
#8
Ian S Howard, Christopher Ford, Angelo Cangelosi, David W Franklin
Rapid learning can be critical to ensure elite performance in a changing world or to recover basic movement after neural injuries. Recently it was shown that the variability of follow-through movements affects the rate of motor memory formation. Here we investigate if lead-in movement has a similar effect on learning rate. We hypothesized that both modality and variability of lead-in movement would play critical roles, with simulations suggesting that only changes in active lead-in variability would exhibit slower learning...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28766369/the-onset-of-uncertainty-facilitates-the-learning-of-new-associations-by-increasing-attention-to-cues
#9
Lara C Easdale, Mike E Le Pelley, Tom Beesley
Past research in animals has suggested that attention is distributed to exploit known relationships between stimuli (e.g., Mackintosh, 1975) and explore stimuli whose consequences are uncertain (e.g., Pearce & Hall, 1980). The resulting changes in attention influence how animals learn new information involving those stimuli. While there is strong support for exploitative attention and its effects on learning in humans, the evidence for exploratory attention is less well developed. Two experiments examined whether preferential allocation of attention (as measured by eye-gaze) to cues associated with uncertainty leads to more rapid learning of new associations involving these cues in the future...
August 2, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28739442/no-effect-of-hippocampal-lesions-on-stimulus-response-bindings
#10
Richard N Henson, Aidan J Horner, Andrea Greve, Elisa Cooper, Mariella Gregori, Jon S Simons, Sharon Erzinçlioğlu, Georgina Browne, Narinder Kapur
The hippocampus is believed to be important for rapid learning of arbitrary stimulus-response contingencies, or S-R bindings. In support of this, Schnyer et al. (2006) (Experiment 2) measured priming of reaction times (RTs) to categorise visual objects, and found that patients with medial temporal lobe damage, unlike healthy controls, failed to show evidence of reduced priming when response contingencies were reversed between initial and repeated categorisation of objects (a signature of S-R bindings). We ran a similar though extended object classification task on 6 patients who appear to have selective hippocampal lesions, together with 24 age-matched controls...
July 21, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28680387/event-driven-random-back-propagation-enabling-neuromorphic-deep-learning-machines
#11
Emre O Neftci, Charles Augustine, Somnath Paul, Georgios Detorakis
An ongoing challenge in neuromorphic computing is to devise general and computationally efficient models of inference and learning which are compatible with the spatial and temporal constraints of the brain. One increasingly popular and successful approach is to take inspiration from inference and learning algorithms used in deep neural networks. However, the workhorse of deep learning, the gradient descent Gradient Back Propagation (BP) rule, often relies on the immediate availability of network-wide information stored with high-precision memory during learning, and precise operations that are difficult to realize in neuromorphic hardware...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28652342/early-phonology-revealed-by-international-adoptees-birth-language-retention
#12
Jiyoun Choi, Mirjam Broersma, Anne Cutler
Until at least 6 mo of age, infants show good discrimination for familiar phonetic contrasts (i.e., those heard in the environmental language) and contrasts that are unfamiliar. Adult-like discrimination (significantly worse for nonnative than for native contrasts) appears only later, by 9-10 mo. This has been interpreted as indicating that infants have no knowledge of phonology until vocabulary development begins, after 6 mo of age. Recently, however, word recognition has been observed before age 6 mo, apparently decoupling the vocabulary and phonology acquisition processes...
July 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28651787/a-role-for-proactive-control-in-rapid-instructed-task-learning
#13
Michael W Cole, Lauren M Patrick, Nachshon Meiran, Todd S Braver
Humans are often remarkably fast at learning novel tasks from instructions. Such rapid instructed task learning (RITL) likely depends upon the formation of new associations between long-term memory representations, which must then be actively maintained to enable successful task implementation. Consequently, we hypothesized that RITL relies more heavily on a proactive mode of cognitive control, in which goal-relevant information is actively maintained in preparation for anticipated high control demands. We tested this hypothesis using a recently developed cognitive paradigm consisting of 60 novel tasks involving RITL and 4 practiced tasks, with identical task rules and stimuli used across both task types...
June 23, 2017: Acta Psychologica
https://www.readbyqxmd.com/read/28537812/perspectives-of-patients-with-cancer-on-the-ethics-of-rapid-learning-health-systems
#14
Reshma Jagsi, Kent A Griffith, Aaron Sabolch, Rochelle Jones, Rebecca Spence, Raymond De Vries, David Grande, Angela R Bradbury
Purpose To inform the evolving implementation of CancerLinQ and other rapid-learning systems for oncology care, we sought to evaluate perspectives of patients with cancer regarding ethical issues. Methods Using the GfK Group online research panel, representative of the US population, we surveyed 875 patients with cancer; 621 (71%) responded. We evaluated perceptions of appropriateness (scored from 1 to 10; 10, very appropriate) using scenarios and compared responses by age, race, and education. We constructed a scaled measure of comfort with secondary use of deidentified medical information and evaluated its correlates in a multivariable model...
July 10, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28487512/rapid-learning-curve-assessment-in-an-ex-vivo-training-system-for-microincisional-glaucoma-surgery
#15
Yalong Dang, Susannah Waxman, Chao Wang, Hardik A Parikh, Igor I Bussel, Ralitsa T Loewen, Xiaobo Xia, Kira L Lathrop, Richard A Bilonick, Nils A Loewen
Increasing prevalence and cost of glaucoma have increased the demand for surgeons well trained in newer, microincisional surgery. These procedures occur in a highly confined space, making them difficult to learn by observation or assistance alone as is currently done. We hypothesized that our ex vivo outflow model is sensitive enough to allow computing individual learning curves to quantify progress and refine techniques. Seven trainees performed nine trabectome-mediated ab interno trabeculectomies in pig eyes (n = 63)...
May 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28451755/the-interpretation-of-compact-polysomnography-polygraphy-in-sleep-breathing-disorders-patients-a-validation-s-study
#16
Marcello Bosi, Andrea De Vito, Chiara Bellini, Giovanni D'Agostino, Elisabetta Firinu, Riccardo Gobbi, Alessandro Pacella, Giulio Filograna Pignatelli, Ermelinda Zeccardo, Venerino Poletti, Claudio Vicini
The Otorhinolaryngologist (ENT) frequently has to deal with OSA or suspicious OSA patients and undergone polysomnography (PSG) or portable monitoring (PM) and should be confident about the quality and consistency of the polysomnographic diagnosis. The main polysomnographic traces compressed in a unique epoch, defined as compact PSG/PM (CP), could represent an efficient tool to confirm the quality of PSG/PM Sleep Breathing Disorders diagnosis. This is a validation's study of a CP interpretation's method, analyzing the learning curve, the level of diagnostic accuracy, and the inter-operator agreement in interpreting the CP pattern between a group of ENT specialists not skilled in PSG/PM scoring, but managing SBD patients during daily practice...
August 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28411303/comparative-approaches-to-same-different-abstract-concept-learning
#17
A A Wright, D M Kelly
Martinho and Kacelnik (2016) imprinted newly hatched ducklings (Anas platyrhynchos domestica) with a moving pair of either same or different objects, and following only one session, the ducklings accurately transferred the same/different relationship to novel object pairs that maintained the training relationship. This rapid learning and transfer of the concepts same and different far outstrips the more gradual learning of these basic concepts by animals in associative-learning tasks in which reinforcement is given for correct responses...
April 14, 2017: Learning & Behavior
https://www.readbyqxmd.com/read/28405951/posterior-retroperitonoscopic-adrenalectomy-a-back-door-access-with-an-unusually-rapid-learning-curve
#18
Sohail Bakkar, Gabriele Materazzi, Lorenzo Fregoli, Piermarco Papini, Paolo Miccoli
Posterior retroperitonoscopic adrenalectomy (PRA) has become a standard approach to the adrenal gland. The aim of this study was to report an initial experience with the procedure following a proper preparatory phase highlighting the rapidity, safety and effectiveness by which it could be introduced into a surgeon's practice. Between May 2015 and July 2016, 14 PRAs were performed in 14 patients (9 females and 5 males). The average age was 46 years, BMI: 25.5 kg/m(2), and ASA score: 2. Indications included: incidenatloma (n = 5), Conn's adenoma (n = 5), and Cushing's adenoma (n = 4)...
June 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28374206/free-flying-honeybees-extrapolate-relational-size-rules-to-sort-successively-visited-artificial-flowers-in-a-realistic-foraging-situation
#19
Scarlett R Howard, Aurore Avarguès-Weber, Jair Garcia, Adrian G Dyer
Learning and applying relational concepts to solve novel tasks is considered an indicator of cognitive-like ability. It requires the abstraction of relational concepts to different objects independent to the physical nature of the individual objects. Recent research has revealed the honeybee's ability to rapidly learn and manipulate relations between visual stimuli such as 'same/different', 'above/below', or 'larger/smaller' despite having a miniature-sized brain. While honeybees can solve problems using rule-based relative size comparison, it remains unresolved as to whether bees can apply size rules when stimuli are encountered successively, which requires reliance on working memory for stimuli comparison...
July 2017: Animal Cognition
https://www.readbyqxmd.com/read/28373977/learning-curve-analysis-of-different-stages-of-robotic-assisted-laparoscopic-hysterectomy
#20
Feng-Hsiang Tang, Eing-Mei Tsai
Objective. To analyze the learning curves of the different stages of robotic-assisted laparoscopic hysterectomy. Design. Retrospective analysis. Design Classification. Canadian Task Force classification II-2. Setting. Kaohsiung Medical University Hospital, Kaohsiung, Taiwan. Patient Intervention. Women receiving robotic-assisted total and subtotal laparoscopic hysterectomies for benign conditions from May 1, 2013, to August 31, 2015. Measurements and Main Results. The mean age, body mass index (BMI), and uterine weight were 46...
2017: BioMed Research International
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