24 research outputs found

    Materialities, Space, Mind: Archaeology of Visual Cognition

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    A perceptual study of different styles of prehistoric Galician ceramics (from 6000 to 2000 BP) conducted by eye-tracking, underpins the material engagement of mind by showing that the visual world fosters the entanglement between doing, seeing, and designing through history. This text examines how materializations of human practices relate to cognition and to socio-cultural contexts. By combining evidence on the relationship between material culture and perceptual reactions, our text aims to understand the entanglement between the mind, objects and the world. We apply measurable and numeric techniques, providing an archaeometric approach to cognitive topics by combining neurosciences with interpretive and reflective research. This research provides new insights into the material culture, contributes to the understanding of the relationship between mind and the material world, and accounts for the transitive engagement between the way of thinking, seeing and making things. Thus, the text contributes to an understanding of the material forces driving perception and thought

    Materialidades, espacio, pensamiento: arqueología de la cognición visual

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    This article presents a perceptual study of different styles of prehistoric Galician ceramics (from 6000 to 2000 BP) using the technique of eye-tracking. This analysis demonstrates the material engagement of mind by showing that the visual world fosters the entanglement of doing, seeing, and designing over the course of history. We examine how materializations of human practices relate to cognition and to socio-cultural contexts. The interrelations between material culture and perceptual reactions indicate a clear connection between the mind, objects and the world. We apply measurable and numeric techniques, providing an archaeometric approach to cognitive topics by combining neurosciences with interpretive and reflective research. This research provides new insights into the material culture, contributes to the understanding of the relationship between mind and the material world, and accounts for the transitive engagement between ways of thinking, seeing and making things. Thus the text contributes to understand the material forces driving perception and thought.En el presente artículo se realiza un estudio perceptual de diferentes estilos de cerámica prehistórica de Galicia (con cronología entre el 6000 y el 2000 BP) mediante la técnica de seguimiento de movimientos oculares. Este análisis permite comprobar la relación de la mente con la materialidad y sugiere la existencia de una estrecha imbricación entre el diseñar, el ver y el hacer a lo largo de la historia. El trabajo examina cómo las materializaciones de las prácticas humanas se correlacionan con la cognición y con el contexto socio-cultural. Las interrelaciones de la cultura material y el comportamiento perceptual, apuntan a una clara conexión entre la mente, los objetos y el mundo. El trabajo aplica técnicas medibles y numéricas, que permiten hacer una aproximación arqueométrica a temas cognitivos mediante la combinación de las neurociencias con investigación interpretativa y reflexiva. Esta investigación ofrece nuevas perspectivas sobre la cultura material y contribuye a comprender la interrelación entre la mente y el mundo material, así como la existencia de un vínculo transitivo entre formas de pensar, de mirar y de hacer cosas. De este modo, el texto hace algunos aportes para entender las fuerzas materiales que guían la percepción y el pensamiento

    Outcomes from elective colorectal cancer surgery during the SARS-CoV-2 pandemic

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    This study aimed to describe the change in surgical practice and the impact of SARS-CoV-2 on mortality after surgical resection of colorectal cancer during the initial phases of the SARS-CoV-2 pandemic

    Elective cancer surgery in COVID-19-free surgical pathways during the SARS-CoV-2 pandemic: An international, multicenter, comparative cohort study

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    PURPOSE As cancer surgery restarts after the first COVID-19 wave, health care providers urgently require data to determine where elective surgery is best performed. This study aimed to determine whether COVID-19–free surgical pathways were associated with lower postoperative pulmonary complication rates compared with hospitals with no defined pathway. PATIENTS AND METHODS This international, multicenter cohort study included patients who underwent elective surgery for 10 solid cancer types without preoperative suspicion of SARS-CoV-2. Participating hospitals included patients from local emergence of SARS-CoV-2 until April 19, 2020. At the time of surgery, hospitals were defined as having a COVID-19–free surgical pathway (complete segregation of the operating theater, critical care, and inpatient ward areas) or no defined pathway (incomplete or no segregation, areas shared with patients with COVID-19). The primary outcome was 30-day postoperative pulmonary complications (pneumonia, acute respiratory distress syndrome, unexpected ventilation). RESULTS Of 9,171 patients from 447 hospitals in 55 countries, 2,481 were operated on in COVID-19–free surgical pathways. Patients who underwent surgery within COVID-19–free surgical pathways were younger with fewer comorbidities than those in hospitals with no defined pathway but with similar proportions of major surgery. After adjustment, pulmonary complication rates were lower with COVID-19–free surgical pathways (2.2% v 4.9%; adjusted odds ratio [aOR], 0.62; 95% CI, 0.44 to 0.86). This was consistent in sensitivity analyses for low-risk patients (American Society of Anesthesiologists grade 1/2), propensity score–matched models, and patients with negative SARS-CoV-2 preoperative tests. The postoperative SARS-CoV-2 infection rate was also lower in COVID-19–free surgical pathways (2.1% v 3.6%; aOR, 0.53; 95% CI, 0.36 to 0.76). CONCLUSION Within available resources, dedicated COVID-19–free surgical pathways should be established to provide safe elective cancer surgery during current and before future SARS-CoV-2 outbreaks

    Elective Cancer Surgery in COVID-19-Free Surgical Pathways During the SARS-CoV-2 Pandemic: An International, Multicenter, Comparative Cohort Study.

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    PURPOSE: As cancer surgery restarts after the first COVID-19 wave, health care providers urgently require data to determine where elective surgery is best performed. This study aimed to determine whether COVID-19-free surgical pathways were associated with lower postoperative pulmonary complication rates compared with hospitals with no defined pathway. PATIENTS AND METHODS: This international, multicenter cohort study included patients who underwent elective surgery for 10 solid cancer types without preoperative suspicion of SARS-CoV-2. Participating hospitals included patients from local emergence of SARS-CoV-2 until April 19, 2020. At the time of surgery, hospitals were defined as having a COVID-19-free surgical pathway (complete segregation of the operating theater, critical care, and inpatient ward areas) or no defined pathway (incomplete or no segregation, areas shared with patients with COVID-19). The primary outcome was 30-day postoperative pulmonary complications (pneumonia, acute respiratory distress syndrome, unexpected ventilation). RESULTS: Of 9,171 patients from 447 hospitals in 55 countries, 2,481 were operated on in COVID-19-free surgical pathways. Patients who underwent surgery within COVID-19-free surgical pathways were younger with fewer comorbidities than those in hospitals with no defined pathway but with similar proportions of major surgery. After adjustment, pulmonary complication rates were lower with COVID-19-free surgical pathways (2.2% v 4.9%; adjusted odds ratio [aOR], 0.62; 95% CI, 0.44 to 0.86). This was consistent in sensitivity analyses for low-risk patients (American Society of Anesthesiologists grade 1/2), propensity score-matched models, and patients with negative SARS-CoV-2 preoperative tests. The postoperative SARS-CoV-2 infection rate was also lower in COVID-19-free surgical pathways (2.1% v 3.6%; aOR, 0.53; 95% CI, 0.36 to 0.76). CONCLUSION: Within available resources, dedicated COVID-19-free surgical pathways should be established to provide safe elective cancer surgery during current and before future SARS-CoV-2 outbreaks

    Innovaciones y mejoras en el proyecto tutoría entre compañeros. Curso 2015-2016

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    Memoria ID-0137. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2015-2016

    Gazed Pottery: an Archaeometric-Cognitive Approach to Material Culture Visuality

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    This draft is currently on peer review.This research was funded by the Spanish Ministry of Economics and Competitiviness, Program Consolider-Ingenio 2010, as part of the “Research Program on Technologies for conservation and valorization of Cultural Heritage” (CSD2007-00058). Work in the laboratory of LMM was supported by the Spanish Ministry of Economy and Competitiveness (Grant BFU2014-58776-r), co-financed by the European Regional Development Fund (ERDF), and the Severo Ochoa Program for Centers of Excellence in R&D (SEV-2013-0317).N

    Gazed pottery: an archaeometric-cognitive approach to material culture visuality

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    This paper presents a study of visual perception through the application of eye-tracking of prehistoric ceramics. The study is a feasible methodology to understand the agency of material culture through quantitative techniques, which allows for the analyses of possible relationships between visual-perceptual behaviour, material culture and social complexity. In particular, the horizontality of gaze is shown to be associated with pottery from early periods and its verticality increases in pottery materials from later, more complex societies. These, and other results, confirm that differential patterns of visual response by observers are determined by the material characteristics of each ceramic style. Implications for improved interpretation of archaeological phenomena are discussed including the possibilities of new applications for heritage management. Therefore, eye-tracking analysis appears to be a powerful and profitable archaeometric techniqueThis research was funded by the Spanish Ministry of Economics and Competitiviness, Program Consolider-Ingenio 2010, as part of the “Research Program on Technologies for conservation and valorization of Cultural Heritage” (CSD 2007-00058). Work in the laboratory of LMM was supported by the Spanish Ministry of Economy and Competitiveness (Grant BFU 2014-58776-r), co-financed by the European Regional Development Fund (ERDF), and the Severo Ochoa Program for Centers of Excellence in R&D (SEV-2013-0317)S

    Coevolution of visual behaviour, the material world and social complexity, depicted by the eye-tracking of archaeological objects in humans

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    Abstract We live in a cluttered visual world that is overflowing with information, the continuous processing of which would be a truly daunting task. Nevertheless, our brains have evolved to select which part of a visual scene is to be prioritized and analysed in detail, and which parts can be discarded or analysed at a later stage. This selection is in part determined by the visual stimuli themselves, and is known as “selective attention”, which, in turn, determines how we explore and interact with our environment, including the distinct human artefacts produced in different socio-cultural contexts. Here we hypothesize that visual responses and material objects should therefore co-evolve to reflect changes in social complexity and culture throughout history. Using eye-tracking, we analysed the eye scan paths in response to prehistoric pottery ranging from the Neolithic through to the Iron Age (ca 6000–2000 BP), finding that each ceramic style caused a particular pattern of visual exploration. Horizontal movements become dominant in earlier periods, while vertical movements are more frequent in later periods that were marked by greater social complexity
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