Tag: Spatial Cognition

“The experiment reported here investigated interactions between the type of creative task (verbal or spatial) and the type of incubation activity (verbal or spatial) on creative performance. the experiment used a verbal creative divergent thinking task (alternative uses) and a spatial creative task (mental synthesis). after 5 minutes of conscious work on alternative uses or mental synthesis, experimental groups had 5-minute incubation periods which involved either spatial (mental rotation) or verbal tasks (anagrams). following incubation, the experimental participants resumed their main task for a further 5 minutes. control groups undertook alternative uses or mental synthesis for 10 minutes without any incubation periods. significant incubation effects were found overall and there were interactions in that spatial incubation benefited verbal fluency and verbal-rated creativity, and verbal incubation benefited spatial-task fluency and spatial-rated creativity but not vice versa. the results supported a role for unconscious work during incubation periods in creative thinking tasks and did not support the hypotheses that incubation effects are due to selective forgetting or attention shifting. © 2013 copyright taylor and francis group, llc.”

“The study was aimed at examining the relationships between alexithymia, imagination functioning and the level of creativity. contrary to previously conducted studies, a behavioural method of measuring imagination efficacy was used (neutral and emotional versions of the mental rotation test). the level of creativity was assessed with the use of the urban-jellen test and creative visualisation task. the neo-ffi was also administered. it was hypothesized that individuals with high alexithymia scores would show a reduced imagery ability as well as low creativity level. in a sample of 136 participants, alexithymics were found to be significantly less creative than non-alexithymics. however, no differences in imagination efficacy were found with regard to alexithymia. the results are discussed in the context of personality impact on cognitive tasks performance, also shedding new light on alexithymia correlates. © 2008 elsevier ltd. all rights reserved.”

“The aim of this study was to examine the associations of control and vividness of mental imagery on performance in several components of in-depth drawing in a sample of fine arts undergraduates. the sample consisted of 56 second-year undergraduates (44 women and 12 men, mean age = 21.18 years) from the fine arts faculty of vigo university, pontevedra, spain. participants were required to undertake a plastic art assignment focusing on the pictorial representation of space. participants scoring high on the image control test obtained higher scores on the spatial analysis and in the formal construction of a work than participants with poor image control. further research involving spatial image performance tests and mental image rotation tests is proposed. © 2014 copyright taylor & francis group, llc.”

“How do students of fine arts, psychology and engineering visualize objects mentally? to address this basic but important educational question, the students’ ability to process figure-ground and spatial imagery was compared using the object-spatial imagery and verbal questionnaire (osivq), the mental rotation test (mrt), and the measure of the ability to form spatial mental imagery (masmi). there were 99 fine arts, 92 psychology, and 90 engineering second-year university undergraduates. the results revealed that students preferred image to verbal processing, but differences were observed in their preferred style of image processing. fine arts and psychology students were the most inclined to use object image processing while engineering students preferred spatial processing. verbal processing was only prominent in psychology students. in all three academic disciplines, the students’ performance in the spatial ability tests is consistent with the features specific of the cognitive style. overall, men were better at mentally rotating objects than women. we believe that there is a need to design artistic spatial imagery measurement tests to access the students’ skills in mental image processing, including image rotation, to identify weaknesses and to develop efficient training strategies in order to correct or attenuate them.”

“Philosophers tend to assume that we have excellent knowledge of our own current conscious experience or ‘phenomenology’. i argue that our knowledge of one aspect of our experience, the experience of visual imagery, is actually rather poor. precedent for this position is found among the introspective psychologists of the late nineteenth and early twentieth centuries. two main arguments are advanced toward the conclusion that our knowledge of our own imagery is poor. first, the reader is asked to form a visual image, and it is expected that answering questions about certain basic features of that experience will be difficult. if so, it seems reasonable to suppose that people could be mistaken about those basic features of their own imagery. second, it is observed that although people give widely variable reports about their own experiences of visual imagery, differences in report do not systematically correlate with differences on tests of skills that psychologists have often supposed to require visual imagery, such as mental rotation, visual creativity, and visual memory.”

“WebGL leverages the power of opengl to present accelerated 3d graphics on a webpage. the ability to put hardware- accelerated 3d content in the browser will provide a means for the creation of new web based applications that were previously the exclusive domain of the desktop environment. it will also allow the inclusion of features that standalone 3d applications do not have. while webgl succeeds in bringing the power and low- level api of opengl to the browser, it also expects a lot of web developers, who are used to the dom and javascript libraries like jquery. this paper will look at how mid level apis can help web developers create unique 3d content that is more than just duplicates of a standalone desktop application on a web page. we will present one such web application named motionview, built with c3dl, that provides a new means for artist and motion capture studios to communicate with each other. we will also highlight some upcoming project ideas that make use of 3d browser technology in a way that would not have been possible in a desktop environment.”

“Get a quick introduction to webgl, the new standard for 3d rendering on the web and a member of html5’s family of technologies. with this hands-on guide, you’ll learn essential webgl development and production concepts, using the javascript 3d engine three.js. at the end of the book, you’ll put everything together and build a full 3d application with webgl. you don’t have to be a game development wizard or have 3d graphics experience to get started. if you use html, css, and javascript-and have familiarity with jquery and ajax-this book will help you gain a working knowledge of webgl through clear and simple examples.”

“Using webgl®, you can create sophisticated interactive 3d graphics inside web browsers, without plug-ins. webgl makes it possible to build a new generation of 3d web games, user interfaces, and information visualization solutions that will run on any standard web browser, and on pcs, smartphones, tablets, game consoles, or other devices. webgl programming guide will help you get started quickly with interactive webgl 3d programming, even if you have no prior knowledge of html5, javascript, 3d graphics, mathematics, or opengl.”

“Get real-world insight from experienced professionals in the opengl communitywith opengl, opengl es, and webgl, real-time rendering is becoming available everywhere, from aaa games to mobile phones to web pages. assembling contributions from experienced developers, vendors, researchers, and educators, opengl insights presents real-world techniques for intermediate and advanced opengl, opengl es, and webgl developers. go beyond the basicsthe book thoroughly covers a range of topics, including opengl 4.2 and recent extensions. it explains how to optimize for mobile devices, explores the design of webgl libraries, and discusses opengl in the classroom. the contributors also examine asynchronous buffer and texture transfers, performance state tracking, and programmable vertex pulling. sharpen your skillsfocusing on current and emerging techniques for the opengl family of apis, this book demonstrates the breadth and depth of opengl. readers will gain practical skills to solve problems related to performance, rendering, profiling, framework design, and more.”

“Provides medium to high level functions for 3d interactive graphics, including functions modelled on base graphics (plot3d(), etc.) as well as functions for constructing representations of geometric objects (cube3d(), etc.). output may be on screen using opengl, or to various standard 3d file formats including webgl, ply, obj, stl as well as 2d image formats, including png, postscript, svg, pgf.”

“This article presents and discusses the implementation of a direct volume rendering system for the web, which articulates a large portion of the rendering task in the client machine. by placing the rendering emphasis in the local client, our system takes advantage of its power, while at the same time eliminates processing from unreliable bottlenecks (e.g. network). the system developed articulates in efficient manner the capabilities of the recently released webgl standard, which makes available the accelerated graphic pipeline (formerly unusable). the dependency on specially customized hardware is eliminated, and yet efficient rendering rates are achieved. the web increasingly competes against desktop applications in many scenarios, but the graphical demands of some of the applications (e.g. interactive scientific visualization by volume rendering), have impeded their successful settlement in web scenarios. performance, scalability, accuracy, security are some of the many challenges that must be solved before visual web applications popularize. in this publication we discuss both performance and scalability of the volume rendering by webgl ray-casting in two different but challenging application domains: medical imaging and radar meteorology. © 2011 acm.”