Browsing by Author "Giesteira, Bruno"
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- Brain's electrical response to visual and auditory stimuli. relations between the two stimuli modalitiesPublication . Giesteira, Bruno; Travassos, João; Freitas, Diamantino; Tavares, DianaAscertain relations between brain responses elicited by stimuli of different modalities (visual and audiological). The stimuli used were based on some of the basic elements and concepts of the visual syntax, regarding to the Gestalt theory, and an audiological grammar based on the clinical protocols. We used Event-Related Potentials for assessing the brain's electrical response to visual and auditory stimuli. Materials: Biopac Systems Mp 150 - Data acquisition unit “MP150A.CE”; universal interface module “UIM100C”; stimulator module “STM100C”, two electroencephalogram amplifier modules “EEG100C”; Ag-AgCL lead electrodes - AcqKnowledge 3.9.0 (software); SuperLab 4.0 (software) and MatlabR2008B. Interim results presented in form of waveforms representing the average and standard deviation of all signals acquired for each type of stimulus. We can visually conclude that different modalities elicit different waveforms and certain stimuli have a more defined response than others.
- Visual archives and infographics: new connectionsPublication . Fernandes, Marta; Giesteira, Bruno; Quintas, Alexandre AiThe present article is part of a broader study that frames the concept and creation of visual archives for online press, in relation to in-‐ fographics. In addition to being an operative discipline, Design presents it-‐ self as a theoretical response, through the analysis of conditionings in soci-‐ ety and the anticipation of new communication processes. By presenting and promoting the practical and theoretical investigation in areas such as design and visual literacy, with specificity on infographics – a multidisciplinary area in constant evolution –, we intend to reveal how we can communicate complex information content visually. Focusing on online press infographics, we propose to establish a new role by relating it to visual archives. Nowadays, the Internet offers various resources for online archives and databases. In the interest of preserving content and data, various archives are, currently, committed to digitizing their information. Various govern-‐ ments, in a methodical manner, have made budget and government deci-‐ sions available online. Other examples, like Google, are also a vital source of information. However, correlations are dispersed and its logic is pre-‐ sented based on textual parities or presented in datasets that only make sense to a scarce number of people. Archives, as a specific field in information, should propose systemic con-‐ structions between content and meaning. This is the underlying premise, when we question in what measure can archives, by becoming visual, solve flaws in communication. At the same time, the subjacent objective of most information visualization is to organize and clarify mass volumes of data. Based on this definition, it is a field that has impinged it self in the concept of archive. We will begin explaining the connections that make information visualization fertile ground for this concept, by decoding the definition and objectives of archives. After, through authors and case studies, we will ana-‐ lyze how they can influence new platforms of communications and rein-‐ force new options for online press infographics.
- Visual archives in digital newspapers: an aproach to visual lexicon in an information visualization prototypePublication . Fernandes, Marta; Giesteira, BrunoBy rethinking how digital information and media have evolved, we intend to discuss how Information Visualization is performing an essential role in the field of newspapers, and how it can evolve with particular emphasis on content archiving for future access. The presence of new visual structures used in fields such as digital archiving, have questioned digital methods of preservation and how the interrelation between information and access to knowledge is revealed. In digital newspapers, the development of access and information retrieval processes has become an essential part of their duties, but it is still in it’s infancy and dependent on text search rather then content awareness. By outlining the links between Visual Archives and Information Visualization, with focus on online press, we venture in a path of trial and error. This is present by the recognition of lack of efficient articulation between different types of contents, as well as between the user interaction and the contents outcomes. Thus proposing a visual lexicon that can adjust to the constraints of technology, different user devices, and the promptitude of publication that a Web context demands it is utmost relevant. A combination of fields, with attention to visual perception and arbitrary conventions in relation to image and content awareness, grants the association of concepts such as big data and thick data description, being part of the outcomes of this research a proposal to a theoretical model grounded on prototyping testing in a newsroom office. This empirical methodological approach is supported by a low-fidelity prototype, for iterative formative evaluations, fostering field’s observations with potential users in order to identify the best visual components of a digital visual archive for online newspapers. The challenge is to develop visual structures that preserve and present the interconnections of news, information and knowledge to be seen, accessed and linked. By making use of a lo-fi prototype of a visual digital archive we aimed, to test, re-test, and find responses in dialogue, failure and retrial. The body of work shown here presents the practical outcomes of the theoretical model.
- Visual archives: new infographic interfacesPublication . Fernandes, Marta; Giesteira, Bruno; Quintas, Alexandre AiThe present article is part of a broader study that frames the concept and creation of visual archives for online press, in relation to infographics. In addition to being an operative discipline, Design presents itself as a theoretical response, through the analysis of conditioning in society and the anticipation of new communication processes. By presenting and promoting a practical and theoretical investigation on infographics, we intend to reveal how we can communicate complex information content visually. Focusing on online press infographics, we propose to establish a new role by relating it to visual archives. We will present selected case studies to focus on the possibilities of retrieval and presentation of past and present data, thus connecting a definition of visual archives with new paths for online dynamic infography. Interface presents itself as an invisible aspect that interfuses the final outcome, and reveals infographics as a response that bonds technology and visual practice.