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Implicit learning

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https://www.readbyqxmd.com/read/28644809/structured-kernel-dictionary-learning-with-correlation-constraint-for-object-recognition
#1
Zhengjue Wang, Yinghua Wang, Hongwei Liu, Hao Zhang
In this paper, we propose a new discriminative non-linear dictionary learning approach, called correlation constrained structured kernel KSVD, for object recognition. The objective function for dictionary learning contains a reconstructive term and a discriminative term. In the reconstructive term, signals are implicitly non-linearly mapped into a space, where a structured kernel dictionary, each sub-dictionary of which lies in the span of the mapped signals from the corresponding class, is established. In the discriminative term, by analyzing the classification mechanism, the correlation constraint is proposed in kernel form, constraining the correlations between different discriminative codes, and restricting the coefficient vectors to be transformed into a feature space, where the features are highly correlated inner-class and nearly independent between-classes...
June 21, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28644791/culture-and-moral-distress-what-s-the-connection-and-why-does-it-matter
#2
Nancy Berlinger, Annalise Berlinger
Culture is learned behavior shared among members of a group and from generation to generation within that group. In health care work, references to "culture" may also function as code for ethical uncertainty or moral distress concerning patients, families, or populations. This paper analyzes how culture can be a factor in patient-care situations that produce moral distress. It discusses three common, problematic situations in which assumptions about culture may mask more complex problems concerning family dynamics, structural barriers to health care access, or implicit bias...
June 1, 2017: AMA Journal of Ethics
https://www.readbyqxmd.com/read/28640027/exploring-integration-in-action-competencies-as-building-blocks-of-expertise
#3
Maria Mylopoulos, Debaroti Tina Borschel, Tara O'Brien, Sofia Martimianakis, Nicole N Woods
PURPOSE: Competency frameworks such as the CanMEDS roles and the ACGME core competencies may lead to the implicit assumption that physicians can learn and practice individual competencies in isolation. In contrast, models of adaptive expertise suggest that the integration of competencies reflects the capabilities of an expert physician. Thus, educational programming aimed at teaching discrete roles or competencies might overlook expert physician capabilities that are central to patient care...
June 20, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28637818/the-cerebellum-does-more-than-sensory-prediction-error-based-learning-in-sensorimotor-adaptation-tasks
#4
Peter A Butcher, Richard B Ivry, Sheng-Han Kuo, David Rydz, John W Krakauer, Jordan A Taylor
Individuals with damage to the cerebellum perform poorly in sensorimotor adaptation paradigms. This deficit has been attributed to impairment in sensory-prediction-error-based updating of an internal forward model, a form of implicit learning. These individuals can, however, successfully counter a perturbation when instructed with an explicit aiming strategy. This successful use of an instructed aiming strategy presents a paradox: In adaptation tasks, why don't individuals with cerebellar damage come up with an aiming solution on their own to compensate for their implicit learning deficit? To explore this question, we employed a variant of a visuomotor rotation task in which, prior to executing a movement on each trial, the participants verbally reported their intended aiming location...
June 21, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28635107/new-space-time-metaphors-foster-new-nonlinguistic-representations
#5
Rose K Hendricks, Lera Boroditsky
What is the role of language in constructing knowledge? In this article, we ask whether learning new relational language can create new ways of thinking. In Experiment 1, we taught English speakers to talk about time using new vertical linguistic metaphors, saying things like "breakfast is above dinner" or "breakfast is below dinner" (depending on condition). In Experiment 2, rather than teaching people new metaphors, we relied on the left-right representations of time that our American college student participants have already internalized through a lifetime of visuospatial experience reading and writing text from left to right...
June 21, 2017: Topics in Cognitive Science
https://www.readbyqxmd.com/read/28632779/base-rate-sensitivity-through-implicit-learning
#6
Andrew J Wismer, Corey J Bohil
Two experiments assessed the contributions of implicit and explicit learning to base-rate sensitivity. Using a factorial design that included both implicit and explicit learning disruptions, we tested the hypothesis that implicit learning underlies base-rate sensitivity from experience (and that explicit learning contributes comparatively little). Participants learned to classify two categories of simple stimuli (bar graph heights) presented in a 3:1 base-rate ratio. Participants learned either from "observational" training to disrupt implicit learning or "response" training which supports implicit learning...
2017: PloS One
https://www.readbyqxmd.com/read/28632752/learning-to-exploit-a-hidden-predictor-in-skill-acquisition-tight-linkage-to-conscious-awareness
#7
Randy Tran, Harold Pashler
It is often assumed that implicit learning of skills based on predictive relationships proceeds independently of awareness. To test this idea, four groups of subjects played a game in which a fast-moving "demon" made a brief appearance at the bottom of the computer screen, then disappeared behind a V-shaped occluder, and finally re-appeared briefly on either the upper-left or upper-right quadrant of the screen. Points were scored by clicking on the demon during the final reappearance phase. Demons differed in several visible characteristics including color, horn height and eye size...
2017: PloS One
https://www.readbyqxmd.com/read/28625081/integration-of-action-and-size-perception-through-practice
#8
Alexandre Coutte, Thomas Camus, Loïc Heurley, Denis Brouillet
Size perception is known to influence our usual interactions with environment. Numerous studies highlighted that during the visual presentation of an object, the properties of manual actions vary as a function of this object's size. In order to better understand the dynamic variations of relationships between size perception and action, we used an experimental paradigm consisting in two phases. During a previous implicit learning phase, a manual response (right or left) was specifically associated with the appearance of a large or small stimulus...
January 1, 2017: Perception
https://www.readbyqxmd.com/read/28623404/action-effects-enhance-explicit-sequential-learning
#9
Sarah Esser, Hilde Haider
Different studies have shown that action-effect associations seem to enhance implicit learning of motor sequences. In a recent study (Haider et al., Conscious Cognit 26:145-161, 2014), we found indications that action-effect learning might play a special role in acquiring explicit knowledge within an implicit learning situation. The current study aims at directly manipulating the action-effect contingencies in a Serial Reaction Time Task and examining its impact on explicit sequence knowledge. For this purpose, we created a situation in which the participants' responses led to a melodic tone sequence...
June 16, 2017: Psychological Research
https://www.readbyqxmd.com/read/28603329/implicit-learning-and-implicit-treatment-outcomes-in-individuals-with-aphasia
#10
Julia Schuchard, Michaela Nerantzini, Cynthia K Thompson
BACKGROUND: Implicit learning is a process of learning that occurs outside of conscious awareness and may be involved in implicit, exposure-based language training. However, research shows that implicit learning abilities are variable among individuals with aphasia, and it remains unknown whether individuals who show basic implicit learning abilities also benefit from implicit language training. AIMS: The aims of this series of experiments were to test implicit learning in individuals with agrammatic aphasia, examine the effects of a novel implicit language treatment, and investigate whether individuals with aphasia who show implicit learning ability also benefit from implicit treatment focused on passive sentence comprehension...
2017: Aphasiology
https://www.readbyqxmd.com/read/28599832/model-based-control-in-dimensional-psychiatry
#11
REVIEW
Valerie Voon, Andrea Reiter, Miriam Sebold, Stephanie Groman
We use parallel interacting goal-directed and habitual strategies to make our daily decisions. The arbitration between these strategies is relevant to inflexible repetitive behaviors in psychiatric disorders. Goal-directed control, also known as model-based control, is based on an affective outcome relying on a learned internal model to prospectively make decisions. In contrast, habit control, also known as model-free control, is based on an integration of previous reinforced learning autonomous of the current outcome value and is implicit and more efficient but at the cost of greater inflexibility...
April 23, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28598040/doing-the-research-that-informs-practice-a-retrospective-view-of-one-group-s-attempt-to-study-the-teaching-and-learning-of-organic-chemistry
#12
George M Bodner, Rob Ferguson, Selçuk Çalimsiz
The idea that the focus of educational research should be on results that can inform the practice of teaching has been an implicit assumption for so many years that one would be hard-pressed to trace it back to an individual source. At one time, the people doing such research in STEM disciplines were faculty in schools or colleges of education who focused on K-12 classrooms and looked for ideas, concepts, and principles that would be valid across a range of STEM disciplines. Eventually, this research was done on college- or university-level students, as well, and there was a shift toward what has been called discipline-based educational research (DBER) that looks at the problems associated with the teaching and learning of a given discipline, such as chemistry...
June 9, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28584870/the-inventory-as-a-core-element-in-the-further-development-of-the-science-curriculum-in-the-mannheim-reformed-curriculum-of-medicine
#13
Julia Eckel, Katrin Schüttpelz-Brauns, Thomas Miethke, Alexandra Rolletschek, Harald M Fritz
Introduction: The German Council of Science and Humanities as well as a number of medical professional associations support the strengthening of scientific competences by developing longitudinal curricula for teaching scientific competences in the undergraduate medical education. The National Competence Based Catalogue of Learning Objectives for Undergraduate Medical Education (NKLM) has also defined medical scientific skills as learning objectives in addition to the role of the scholar. The development of the Mannheim science curriculum started with a systematic inventory of the teaching of scientific competences in the Mannheim Reformed Curriculum of Medicine (MaReCuM)...
2017: GMS Journal for Medical Education
https://www.readbyqxmd.com/read/28582684/compounding-as-abstract-operation-in-semantic-space-investigating-relational-effects-through-a-large-scale-data-driven-computational-model
#14
Marco Marelli, Christina L Gagné, Thomas L Spalding
In many languages, compounding is a fundamental process for the generation of novel words. When this process is productive (as, e.g., in English), native speakers can juxtapose two words to create novel compounds that can be readily understood by other speakers. The present paper proposes a large-scale, data-driven computational system for compound semantic processing based on distributional semantics, the CAOSS model (Compounding as Abstract Operation in Semantic Space). In CAOSS, word meanings are represented as vectors encoding their lexical co-occurrences in a reference corpus...
June 2, 2017: Cognition
https://www.readbyqxmd.com/read/28580526/deformable-appearance-pyramids-for-anatomy-representation-landmark-detection-and-pathology-classification
#15
Qiang Zhang, Abhir Bhalerao, Charles Hutchinson
PURPOSE: Representation of anatomy appearance is one of the key problems in medical image analysis. An appearance model represents the anatomies with parametric forms, which are then vectorised for prior learning, segmentation and classification tasks. METHODS: We propose a part-based parametric appearance model we refer to as a deformable appearance pyramid (DAP). The parts are delineated by multi-scale local feature pyramids extracted from an image pyramid. Each anatomy is represented by an appearance pyramid, with the variability within a population approximated by local translations of the multi-scale parts and linear appearance variations in the assembly of the parts...
June 3, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28577488/motor-imagery-based-implicit-sequence-learning-depends-on-the-formation-of-stimulus-response-associations
#16
Sarah N Kraeutner, Theresa C Gaughan, Sarah N Eppler, Shaun G Boe
Implicit sequence learning (ISL) occurs without conscious awareness and is critical for skill acquisition. The extent to which ISL occurs is a function of exposure (i.e., total training time and/or sequence to noise ratio) to a repeated sequence, and thus the cognitive mechanism underlying ISL is the formation of stimulus-response associations. As the majority of ISL studies employ paradigms whereby individuals unknowingly physically practice a repeated sequence, the cognitive mechanism underlying ISL through motor imagery (MI), the mental rehearsal of movement, remains unknown...
May 31, 2017: Acta Psychologica
https://www.readbyqxmd.com/read/28558623/is-trypophobia-a-phobia
#17
Wang Can, Zhao Zhuoran, Jin Zheng
In the past 10 years, thousands of people have claimed to be affected by trypophobia, which is the fear of objects with small holes. Recent research suggests that people do not fear the holes; rather, images of clustered holes, which share basic visual characteristics with venomous organisms, lead to nonconscious fear. In the present study, both self-reported measures and the Preschool Single Category Implicit Association Test were adapted for use with preschoolers to investigate whether discomfort related to trypophobic stimuli was grounded in their visual features or based on a nonconsciously associated fear of venomous animals...
April 2017: Psychological Reports
https://www.readbyqxmd.com/read/28557278/auditory-access-language-access-and-implicit-sequence-learning-in-deaf-children
#18
Matthew L Hall, Inge-Marie Eigsti, Heather Bortfeld, Diane Lillo-Martin
Developmental psychology plays a central role in shaping evidence-based best practices for prelingually deaf children. The Auditory Scaffolding Hypothesis (Conway et al., 2009) asserts that a lack of auditory stimulation in deaf children leads to impoverished implicit sequence learning abilities, measured via an artificial grammar learning (AGL) task. However, prior research is confounded by a lack of both auditory and language input. The current study examines implicit learning in deaf children who were (Deaf native signers) or were not (oral cochlear implant users) exposed to language from birth, and in hearing children, using both AGL and Serial Reaction Time (SRT) tasks...
May 30, 2017: Developmental Science
https://www.readbyqxmd.com/read/28553254/a-first-step-toward-the-understanding-of-implicit-learning-of-hazard-anticipation-in-inexperienced-road-users-through-a-moped-riding-simulator
#19
Mariaelena Tagliabue, Evelyn Gianfranchi, Michela Sarlo
Hazard perception is considered one of the most important abilities in road safety. Several efforts have been devoted to investigating how it improves with experience and can be trained. Recently, research has focused on the implicit aspects of hazard detection, reaction, and anticipation. In the present study, we attempted to understand how the ability to anticipate hazards develops during training with a moped-riding simulator: the Honda Riding Trainer (HRT). Several studies have already validated the HRT as a tool to enhance adolescents' hazard perception and riding abilities...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28547011/the-effect-of-visual-variability-on-the-learning-of-academic-concepts
#20
Ashley Bourgoyne, Mary Alt
Purpose: The purpose of this study was to identify effects of variability of visual input on development of conceptual representations of academic concepts for college-age students with normal language (NL) and those with language-learning disabilities (LLD). Method: Students with NL (n = 11) and LLD (n = 11) participated in a computer-based training for introductory biology course concepts. Participants were trained on half the concepts under a low-variability condition and half under a high-variability condition...
May 26, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
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