1,720,963 research outputs found
Towards real world neuroscience: the impact of virtual and augmented reality techniques on the study of human performance and sense of presence.
Get PDFVirtual and Augmented reality systems are rapidly evolving. Their technical development is accompanied by a spreading of applications in fields such as architecture, design, digital marketing, education, entertainment, gaming, robotics, fine arts, military and medicine training, engineering and research. Those tools, requiring 8 years ago investment in the order of tens of thousands of US dollars (Bohil, Alicea, & Biocca, 2011) can boast nowadays easier economical accessibility and predicted market size in the next 5 years ranging from 50 to 300 billion (summary of sources). Having regard to the forthcoming large-scale adoption, it is beyond necessary, from a neuroscientific perspective, to investigate the impact of VR and AR technology on human cognition and performance. Therefore, monitoring the interplay between these devices and our brain dynamics in the short and long term and across their development leaps will be crucial to ensure their correct and safe usage in research and beyond. This could pave the way to new research paradigms and commercial applications, granting users the right experience for their needs whether they will need to train for a complex surgical intervention along with an artificial agent or just get the maximum excitement from an immersive sensorial journey.
The first introductory chapter will discuss the contribution of virtual and augmented reality as tools for the study of human cognition and performance and the need, arising from an "embodied" vision of cognition, for a transition towards experimental paradigms that allow neuroscientist to study subjects that interact in a realistic environment through spontaneous and natural actions
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“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
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Characterizing body Image distortion and bodily-self plasticity in anorexia nervosa via immersive virtual reality
No full textBody Image Distortion (BID) is a core symptom of Anorexia Nervosa and it affects both the perceptive (body overestimation) and the cognitive-emotional (body dissatisfaction) components of body image.
Recent experimental evidence shows that Immersive Virtual reality (IVR) and Full Body Illusion (FBI) can alter the BID in anorexic patients (AN).
We created avatars reconstructing participants’ bodies, alongside a series of fatter and slimmer avatars. We measured participants’ body overestimation and dissatisfaction by asking the participants (20 AN, 20 age-matched controls, all females) to choose the avatars that best resembled their real and ideal body.
FBI was induced via a/synchronous visuo-tactile stimulation applied to three avatars of different sizes (the chosen avatar, one fatter and one thinner than the chosen one) observed from the first-person perspective. We recorded real and ideal body size ratings before and after the FBI, together with participants’ emotional state and explicit (embodiment questionnaire) and implicit (body temperature) measures of embodiment.
Compared to controls, AN chose fatter avatars in the perceived body task and thinner avatars in the ideal body task. While AN and controls showed the same explicit level of embodiment regardless of the avatars’ size, AN showed lower body temperature after FBI, indicating a stronger illusion and greater body image malleability. Interestingly, AN reported more negative emotions after embodying the fatter avatar and this correlates with symptoms severity.
Considering these results, we think that FBI induced in a IVR setting might represent a powerful tool in the diagnosis and treatment of BID in anorexia
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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