161,226 research outputs found
A Major Update of the Comprehensive Framework for Statistical Learning Analysis of Neural Data
No full textVariations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
The individualized neural tuning model: Precise and generalizable cartography of functional architecture in individual brains
No full textQuantifying how brain functional architecture differs from person to person is a key challenge in human neuroscience. Current individualized models of brain functional organization are based on brain regions and networks, limiting their use in studying fine-grained vertex-level differences. In this work, we present the individualized neural tuning (INT) model, a fine-grained individualized model of brain functional organization. The INT model is designed to have vertex-level granularity, to capture both representational and topographic differences, and to model stimulus-general neural tuning. Through a series of analyses, we demonstrate that (a) our INT model provides a reliable individualized measure of fine-grained brain functional organization, (b) it accurately predicts individualized brain response patterns to new stimuli, and (c) for many benchmarks, it requires only 10–20 minutes of data for good performance. The high reliability, specificity, precision, and generalizability of our INT model affords new opportunities for building brain-based biomarkers based on naturalistic neuroimaging paradigms
The distributed neural code for facial identity
No full textMultiples studies have investigated the role of familiarity, emotion and novelty in the detection and recognition of human faces (see Natu & O'Toole, 2011 for a review). Gobbini & Haxby (2007) have suggested a model of familiar face recognition that describes how prior knowledge of a person's identity modulates the visual systems involved in processing personally familiar faces. Building on this proposed model, the present study sought to investigate the neural representation of personally familiar (friends) and unfamiliar (matched for age and gender strangers) faces. Thirty-three participants underwent functional MRI while performing an oddball detection task in which they were presented with faces of friends and strangers. Univariate GLM and MVPA classification searchlight results agreed with previous findings of greater activity for the processing of familiar faces within some core visual modules and emotion-related regions (e.g. amygdala and insular cortex) suggested by the model. In addition, MVPA exclusively detected differential involvement of regions of the prefrontal cortex and the anterior temporal lobe providing further evidence of distributed representations of person knowledge. Furthermore, MVPA results for identity classification identified a cluster in the right middle frontal gyrus which was sensitive to identity (across friends and strangers combined). This suggests that familiarity differentially modulates brain regions implicated previously in carrying biographic knowledge. The same analysis also identified right inferior frontal gyrus which was also not found to be modulated by familiarity.
Future directions are the investigation of functional connectivity between identified regions and subject-specific traits associated with individual stimuli
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Effect of cryopreserved fragments of piglet‘s skin extract or aqueous colloidal solution of fullerene c60 on wound healing after skin cryoablation
No full textVlasov O., Kovalov G., Halchenko S., Chyzh M. Effect of cryopreserved fragments of piglet‘s skin extract or aqueous colloidal solution of fullerene C60 on wound healing after skin cryoablation (2020) The 1st International scientific and practical conference – Modern science: problems and innovations (April 5-7, 2020) SSPG Publish, Stockholm, Sweden. 84–87.Effect of cryopreserved fragments of piglet‘s skin extract or aqueous colloidal solution of fullerene C60 on wound healing after skin cryoablatio
Larry O. Spencer, Conference Author Presentation
No full textGen. Larry O. Spencer, USAF (Ret.), author of Dark Horse: A Journey from the Horseshoe to the Pentago
Neural Responses to Naturalistic Clips of Behaving Animals in Two Different Task Contexts
No full textHere we present functional MRI data measured while participants freely viewed brief naturalistic video clips of animals behaving in their natural environments (Nastase et al., 2017). Participants performed a 1-back category repetition detection task requiring them to attend to either animal behavior or taxonomy. There are several benefits to using dynamic, naturalistic stimuli. They convey rich perceptual and semantic information (Bartels and Zeki, 2004; Huth et al., 2012) and more fully sample neural representational space than conventional stimuli (Haxby et al., 2014). Furthermore, natural vision paradigms have greater ecological validity (Felsen and Dan, 2005), and dynamic stimuli have been shown to drive reliable neural responses across individuals (Hasson et al., 2010; Haxby et al., 2011)
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Thesaurus of craft and professional terminology in Ukrainian bibliopegy: the issues of a special dictionary formation
No full textThe article covers terminological problems which arise when medieval manuscripts’ bindings are described for scientific catalogs and electronic databases. The author attempts to analyze the causes of these problems and ways to overcome them. Reviewed are handwritten and printed sources, which contain the terms dealing with manuscripts production, and substantiated is the relevance of formation of the national craft and professional terminology thesaurus in Ukrainian codicology and bibliopegy. We have also defined the basic steps of the dictionary creation, which are the following: collecting special terms and creating a glossary and card index; translation, editing and unification of borrowed terms; creation of a digital visual dictionar
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