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https://www.readbyqxmd.com/read/28616382/improving-language-mapping-in-clinical-fmri-through-assessment-of-grammar
#1
Monika Połczyńska, Kevin Japardi, Susan Curtiss, Teena Moody, Christopher Benjamin, Andrew Cho, Celia Vigil, Taylor Kuhn, Michael Jones, Susan Bookheimer
INTRODUCTION: Brain surgery in the language dominant hemisphere remains challenging due to unintended post-surgical language deficits, despite using pre-surgical functional magnetic resonance (fMRI) and intraoperative cortical stimulation. Moreover, patients are often recommended not to undergo surgery if the accompanying risk to language appears to be too high. While standard fMRI language mapping protocols may have relatively good predictive value at the group level, they remain sub-optimal on an individual level...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28602887/cross-modal-recruitment-of-auditory-and-orofacial-areas-during-sign-language-in-a-deaf-subject
#2
Juan Martino, Carlos Velasquez, Javier Vázquez-Bourgon, Enrique Marco de Lucas, Elsa Gomez
BACKGROUND: Modern signed languages of the deaf are fully expressive, natural human languages that are perceived visually and produced manually.The literature contains little data concerning human brain organization in conditions of deficient sensory information such as deafness. CASE DESCRIPTION: Here, we describe an original case of a deaf-mute patient with a left temporo-insular low-grade glioma that was operated. The patient underwent awake surgery with intraoperative electrical stimulation mapping, allowing for the first time in the literature, to directly study the cortical and subcortical organization of signed language...
June 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28601710/evolution-of-word-meanings-through-metaphorical-mapping-systematicity-over-the-past-millennium
#3
Yang Xu, Barbara C Malt, Mahesh Srinivasan
One way that languages are able to communicate a potentially infinite set of ideas through a finite lexicon is by compressing emerging meanings into words, such that over time, individual words come to express multiple, related senses of meaning. We propose that overarching communicative and cognitive pressures have created systematic directionality in how new metaphorical senses have developed from existing word senses over the history of English. Given a large set of pairs of semantic domains, we used computational models to test which domains have been more commonly the starting points (source domains) and which the ending points (target domains) of metaphorical mappings over the past millennium...
June 8, 2017: Cognitive Psychology
https://www.readbyqxmd.com/read/28600249/egocentric-mapping-of-body-surface-constraints
#4
Eray Molla, Henrique Galvan Debarba, Ronan Boulic
The relative location of human body parts often materializes the semantics of on-going actions, intentions and even emotions expressed, or performed, by a human being. However, traditional methods of performance animation fail to correctly and automatically map the semantics of performer postures involving self-body contacts onto characters with different sizes and proportions. Our method proposes an egocentric normalization of the body-part relative distances to preserve the consistency of self contacts for a large variety of human-like target characters...
June 7, 2017: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28600247/multimodal-similarity-gaussian-process-latent-variable-model
#5
Guoli Song, Shuhui Wang, Qingming Huang, Qi Tian
Data from real applications involve multiple modalities representing content with the same semantics from complementary aspects. However, relations among heterogeneous modalities are simply treated as observation-to-fit by existing work, and the parameterized modality specific mapping functions lack flexibility in directly adapting to the content divergence and semantic complicacy in multimodal data. In this paper, we build our work based on Gaussian process latent variable model (GPLVM) to learn the non-parametric mapping functions and transform heterogeneous modalities into a shared latent space...
June 7, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28587117/deepmap-recognizing-high-level-indoor-semantics-using-virtual-features-and-samples-based-on-a-multi-length-window-framework
#6
Wei Zhang, Siwang Zhou
Existing indoor semantic recognition schemes are mostly capable of discovering patterns through smartphone sensing, but it is hard to recognize rich enough high-level indoor semantics for map enhancement. In this work we present DeepMap+, an automatical inference system for recognizing high-level indoor semantics using complex human activities with wrist-worn sensing. DeepMap+ is the first deep computation system using deep learning (DL) based on a multi-length window framework to enrich the data source. Furthermore, we propose novel methods of increasing virtual features and virtual samples for DeepMap+ to better discover hidden patterns of complex hand gestures...
May 26, 2017: Sensors
https://www.readbyqxmd.com/read/28579952/brain-network-for-the-core-deficits-of-semantic-dementia-a-neural-network-connectivity-behavior-mapping-study
#7
Yan Chen, Keliang Chen, Junhua Ding, Yumei Zhang, Qing Yang, Yingru Lv, Qihao Guo, Zaizhu Han
Individuals with semantic dementia (SD) typically suffer from selective semantic deficits due to degenerative brain atrophy. Although some brain regions have been found to be correlated with the semantic impairments of SD patients, it is unclear if the damage is actually responsible for SD patients' semantic disorders because these findings were primarily obtained by examining the roles of local individual regions themselves without considering the influence of other regions that are functionally or structurally connected to the local individual regions...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28575757/sensorimotor-experience-and-verb-category-mapping-in-human-sensory-motor-and-parietal-neurons
#8
Ying Yang, Michael Walsh Dickey, Julie Fiez, Brian Murphy, Tom Mitchell, Jennifer Collinger, Elizabeth Tyler-Kabara, Michael Boninger, Wei Wang
Semantic grounding is the process of relating meaning to symbols (e.g., words). It is the foundation for creating a representational symbolic system such as language. Semantic grounding for verb meaning is hypothesized to be achieved through two mechanisms: sensorimotor mapping, i.e., directly encoding the sensorimotor experiences the verb describes, and verb-category mapping, i.e., encoding the abstract category a verb belongs to. These two mechanisms were investigated by examining neuronal-level spike (i...
May 6, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28572785/age-of-acquisition-effects-on-word-processing-for-chinese-native-learners-english-erp-evidence-for-the-arbitrary-mapping-hypothesis
#9
Jin Xue, Tongtong Liu, Fernando Marmolejo-Ramos, Xuna Pei
The present study aimed at distinguishing processing of early learned L2 words from late ones for Chinese natives who learn English as a foreign language. Specifically, we examined whether the age of acquisition (AoA) effect arose during the arbitrary mapping from conceptual knowledge onto linguistic units. The behavior and ERP data were collected when 28 Chinese-English bilinguals were asked to perform semantic relatedness judgment on word pairs, which represented three stages of word learning (i.e., primary school, junior and senior high schools)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28555611/real-time-inference-of-word-relevance-from-electroencephalogram-and-eye-gaze
#10
Markus Andreas Wenzel, Mihail Bogojeski, Benjamin Blankertz
OBJECTIVE: Brain-computer interfaces can potentially map the subjective relevance of the visual surrounding, based on neural activity and eye movements, in order to infer the interest of a person in real-time. APPROACH: Readers looked for words belonging to one out of five semantic categories, while a stream of words passed at different locations on the screen. It was estimated in real-time which words and thus which semantic category interested each reader based on the electroencephalogram (EEG) and the eye gaze...
May 30, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28548027/dissociation-between-preserved-body-structural-description-and-impaired-body-image-following-a-pediatric-spinal-trauma
#11
Gerardo Salvato, Valeria Peviani, Elisa Scarano, Pina Scarpa, Alessandra Leo, Tiziana Redaelli, Michele Spinelli, Maurizio Sberna, Gabriella Bottini
In adult patients, Spinal Cord Injury (SCI) may influence the mental Body Representation (BR). Currently, there is no evidence on the modulation of SCI on BR during early stages of cognitive development. Here, we investigated BR in a 3-year-old child with complete SCI. The patient was administered with a specific battery assessing different BR components. We found evidence for putative classical neuropsychological dissociation between a preserved topological map with impaired semantic knowledge of the body...
May 26, 2017: Neurocase
https://www.readbyqxmd.com/read/28541739/visualization-of-large-scale-narrative-data-describing-human-error
#12
William J Irwin, Saul D Robinson, Stephen M Belt
Objective Introduced is a visual data exploration technique for compiling, reducing, organizing, visually rendering, and filtering text-based narratives for detailed analysis. Background The analysis of data sets provides an increasingly difficult problem. The method of visual representation is considered an effective tool in many applications. The focus of this study was to determine if a latent semantic analysis-based projection of narrative data into a geographic information systems software program provided a useful tool for reducing and organizing large sums of narrative data for analysis...
June 2017: Human Factors
https://www.readbyqxmd.com/read/28540479/the-role-of-learning-in-sensory-motor-modality-switching
#13
Simone Schaeffner, Iring Koch, Andrea M Philipp
Previous research has indicated that modality switching is considerably affected by modality compatibility. It has been shown that switch costs are higher for switching between relatively incompatible sensory-motor modality mappings (i.e., auditory-manual and visual-vocal) compared to switching between compatible mappings (i.e., auditory-vocal and visual-manual). So far, however, it has been unclear whether these findings are influenced by learning processes resulting from very small stimulus sets and a large number of stimulus repetitions...
May 24, 2017: Psychological Research
https://www.readbyqxmd.com/read/28515686/innate-and-cultural-spatial-time-a-developmental-perspective
#14
REVIEW
Barbara Magnani, Alessandro Musetti
We reviewed literature to understand when a spatial map for time is available in the brain. We carefully defined the concepts of metrical map of time and of conceptual representation of time as the mental time line (MTL) in order to formulate our position. It is that both metrical map and conceptual representation of time are spatial in nature. The former should be innate, related to motor/implicit timing, it should represent all magnitudes with an analogic and bi-dimensional structure. The latter MTL should be learned, available at about 8-10 years-old and related to cognitive/explicit time...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28508783/automatic-conversion-of-metadata-from-the-study-of-health-in-pomerania-to-odm
#15
Stefan Hegselmann, Sophia Gessner, Philipp Neuhaus, Jörg Henke, Carsten Oliver Schmidt, Martin Dugas
BACKGROUND: Electronic collection and high quality analysis of medical data is expected to have a big potential to improve patient care and medical research. However, the integration of data from different stake holders is posing a crucial problem. The exchange and reuse of medical data models as well as annotations with unique semantic identifiers were proposed as a solution. OBJECTIVES: Convert metadata from the Study of Health in Pomerania to the standardized CDISC ODM format...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28508775/semantic-technologies-for-re-use-of-clinical-routine-data
#16
Markus Kreuzthaler, Catalina Martínez-Costa, Peter Kaiser, Stefan Schulz
Routine patient data in electronic patient records are only partly structured, and an even smaller segment is coded, mainly for administrative purposes. Large parts are only available as free text. Transforming this content into a structured and semantically explicit form is a prerequisite for querying and information extraction. The core of the system architecture presented in this paper is based on SAP HANA in-memory database technology using the SAP Connected Health platform for data integration as well as for clinical data warehousing...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28508772/concept-based-retrieval-from-critical-incident-reports
#17
Kerstin Denecke
BACKGROUND: Critical incident reporting systems (CIRS) are used as a means to collect anonymously entered information of incidents that occurred for example in a hospital. Analyzing this information helps to identify among others problems in the workflow, in the infrastructure or in processes. OBJECTIVES: The entire potential of these sources of experiential knowledge remains often unconsidered since retrieval of relevant reports and their analysis is difficult and time-consuming, and the reporting systems often do not provide support for these tasks...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28506484/a-surgical-approach-to-the-anatomo-functional-structure-of-language
#18
REVIEW
E Mandonnet
INTRODUCTION: Language is the most widely mapped cognitive function during brain surgery. Intraoperative language functional mapping using direct electrical stimulation under awake conditions is currently the gold standard technique for establishing the causal link between an area and a deficit that would be caused by its resection. It is also a powerful tool to investigate the anatomical correlates of current neuropsychological models of language. MATERIAL AND METHODS: The aim of this article is to reexamine the anatomo-functional structure of language that could be inferred from data obtained in direct electrical stimulation studies during awake surgery...
May 12, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28498524/patterns-of-chronic-hand-eczema-a-semantic-map-analysis-of-the-carpe-registry-data
#19
S Cazzaniga, C Apfelbacher, T Diepgen, R Ofenloch, E Weisshaar, S Molin, A Bauer, V Mahler, P Elsner, J Schmitt, B K Ballmer-Weber, P Spring, L Naldi, L Borradori, D Simon
BACKGROUND: Hand eczema (HE) has a high incidence and prevalence, and is associated with disturbances of both physical and psychological well-being, and risk of persistence as chronic HE (CHE). Epidemiological studies on HE provided mainly descriptive and risk analyses, but pattern analyses of variables associated with HE, in particular CHE have not been explored so far. OBJECTIVES: To investigate and display the semantics of associations among variables of HE obtained by the Swiss and German registries of CHE (CARPE) to dissect patterns and novel links...
May 12, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28497544/inducing-unconscious-stress-cardiovascular-activity-in-response-to-subliminal-presentation-of-threatening-and-neutral-words
#20
Melanie M van der Ploeg, Jos F Brosschot, Bart Verkuil, Brandon L Gillie, DeWayne P Williams, Julian Koenig, Michael W Vasey, Julian F Thayer
Stress-related cognitive processes may occur outside of awareness, here referred to as unconscious stress, and affect one's physiological state. Evidence supporting this idea would provide necessary clarification of the relationship between psychological stress and cardiovascular (CV) health problems. We tested the hypothesis that increases in mean arterial pressure (MAP) and total peripheral resistance (TPR) and decreases in heart rate variability (HRV) would be larger when threatening stimuli are presented outside of awareness, or subliminally, compared with neutral stimuli...
May 12, 2017: Psychophysiology
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