Often implicit in visual display design and development is a gold standard of photorealism. By approximating direct perception, photorealism appeals to users and designers by being both attractive and apparently effortless. The vexing result from numerous performance evaluations, though, is that increasing realism often impairs performance. Smallman and St. John (2005) labeled misplaced faith in realistic information display Naïve Realism and theorized it resulted from a triplet of folk fallacies about perception. Here, we illustrate issues associated with the wider (...) trend towards realism by focusing on a specific current trend for high-fidelity perspective view (3D) geospatial displays. In two experiments, we validated Naïve Realism for different terrain understanding tasks, explored whether certain individuals are particularly prone to Naïve Realism, and determined the ability of task feedback to mitigate Naïve Realism. Performance was measured for laying and judging a concealed route across realistic terrain shown in different display formats. Task feedback was either implicit, in Experiment 1, or explicit in Experiment 2. Prospective and retrospective intuitions about the best display formats for the tasks were recorded and then related to task performance and participant spatial ability. Participants generally intuited they would perform tasks better with more realism than they actually required. For example, counter to intuitions, lowering fidelity of the terrain display revealed the gross scene layout needed to lay a well-concealed route. Individuals of high spatial ability calibrated their intuitions with only implicit task feedback, whereas those of low spatial ability required salient, explicit feedback to calibrate their intuitions about display realism. Results are discussed in the wider context of applying perceptual science to display design, and combating folk fallacies. (shrink)

To explore 3- to 7-year-old children's developing understanding of human and non-human minds, a battery of "background knowledge" tasks was administered to 51 American children. The children were asked to speculate about how three other intentional agents would understand various visual displays. First, children answered when they themselves did not understand the displays, then they answered after they had been given information necessary to understand the displays. Results revealed that children begin to understand the role of (...) background knowledge around the same age that they pass false-belief tasks; and that before thoroughly understanding the role of background knowledge they already begin to discriminate between different types of minds. By age four, children began to show some understanding that because of having different minds than people, God is more able and dogs are less able to understand some visual displays even with full visual access. (shrink)

This chapter presents an overview of several recent developments in vision science, and outlines some of their implications for the management of visual attention in graphic displays. These include ways of sending attention to the right item at the right time, techniques to improve attentional efficiency, and possibilities for offloading some of the processing typically done by attention onto nonattentional mechanisms. In addition it is argued that such techniques not only allow more effective use to be made of (...) visual attention, but also open up new possibilities for human-machine interaction. (shrink)

David Houston Jones builds a bridge between practices conventionally understood as forensic, such as crime scene investigation, and the broader field of activity which the forensic now designates, for example performance and installation art, as well as photography. Contemporary work in these areas responds both to forensic evidence, including crime scene photography, and to some of the assumptions underpinning its consumption. It asks how we look, and in whose name, foregrounding and scrutinising the enduring presence of voyeurism in visual (...) media and instituting new forms of ethical engagement. Such work responds to the object-oriented culture associated with the forensic and offers a reassessment of the relationship of human voice and material evidence. It displays an enduring debt to the discursive model of testimony which has so far been insufficiently recognised, and which forms the basis for a new ethical understanding of the forensic. Jones's analysis brings this methodology to bear upon a strand of contemporary visual activity which has the power to significantly redefine our understandings of the production, analysis and deployment of evidence. Artists examined include Forensic Architecture, Simon Norfolk, Melanie Pullen, Angela Strassheim, John Gerrard, Julian Charrière, Trevor Paglen, Laura Poitras and Sophie Ristelhueber. The book will be of interest to scholars working in art history, visual culture, literary studies, modern languages, photography and critical theory. (shrink)

Resumo Neste artigo, tentar-se-á reconstruir e defender a noção de “especificidade média” que se refere ao cinema. Começar-se-á por discutir a ontologia de um certo tipo de exibição visual, geralmente encontrada em conexão com uma vasta gama de obras cinematográficas. Argumentar-se-á que estas exibições têm uma natureza essencial ou real. Obras construídas em torno de tais exibições estão aptas a manifestar certas qualidades e poderes peculiares. Assim, o “meio de cinema” consiste em parte, num tipo particular de meio veicular (...) e, de várias propriedades nem sempre manifestas distintas dele. Ao discutir-se o conceito de “meio”, considera-se também um sentido em que esta noção é negligenciada, a saber, que as competências e habilidades pessoais operam uma mediação entre a concepção de uma exibição e a sua produção. Prosseguir-se-á, argumentando, que apesar dos defeitos da “especificidade média”, proveniente de uma versão da teoria clássica do cinema, o cinema como uma forma de arte ou corpo de obras de arte, é ou tem um “meio especial” dotado de distintas propriedades artísticas. Palavras-chave : essencialismo, medium specificity, medium, obra, ontologia do cinema, valor artísticoIn this paper, I try to reconstruct and defend the notion of medium specificity as it relates to cinema. I begin by discussing the ontology of a certain kind of visual display commonly found in connection with a vast range of candidate cinematic works. These displays, I argue, have an essential or real nature. Works constructed around such displays are apt to manifest certain qualities and powers peculiar to displays of that kind. Thus cinema’s medium consists in part of a particular type of vehicular medium and various not always manifested properties distinctive to it. In discussing the concept of medium, I also consider a neglected sense of this term, namely, personal abilities and skills that mediate between one’s designing a certain display and one’s producing a matching object or result. I go on to argue that, despite the defects of classic film theory’s version of medium specificity, it is true that cinema, as artform or body of artworks, is or has a special medium endowed with distinctive artistic properties. Keywords : artistic value, essentialism, medium specificity, medium, ontology of cinema, work. (shrink)

There is growing interest in the effect of sound on visual motion perception. One model involves the illusion created when two identical objects moving towards each other on a two-dimensional visual display can be seen to either bounce off or stream through each other. Previous studies show that the large bias normally seen toward the streaming percept can be modulated by the presentation of an auditory event at the moment of coincidence. However, no reports to date provide sufficient (...) evidence to indicate whether the sound bounce-inducing effect is due to a perceptual binding process or merely to an explicit inference resulting from the transient auditory stimulus resembling a physical collision of two objects. In the present study, we used a novel experimental design in which a subliminal sound was presented either 150 ms before, at, or 150 ms after the moment of coincidence of two disks moving towards each other. The results showed that there was an increased perception of bouncing when the subliminal sound was presented at or 150 ms after the moment of coincidence compared to when no sound was presented. These findings provide the first empirical demonstration that activation of the human auditory system without reaching consciousness affects the perception of an ambiguous visual motion display. (shrink)

Visual aids can improve comprehension of risks associated with medical treatments, screenings, and lifestyles. Do visual aids also help decision makers accurately assess their risk comprehension? That is, do visual aids help them become well calibrated? To address these questions, we investigated the benefits of visual aids displaying numerical information and measured accuracy of self-assessment of diagnostic inferences (i.e., metacognitive judgment calibration) controlling for individual differences in numeracy. Participants included 108 patients who made diagnostic inferences about (...) three medical tests on the basis of information about the sensitivity and false-positive rate of the tests and disease prevalence. Half of the patients received the information in numbers without a visual aid, while the other half received numbers along with a grid representing the numerical information. In the numerical condition, many patients --especially those with low numeracy-- misinterpreted the predictive value of the tests and profoundly overestimated the accuracy of their inferences. Metacognitive judgment calibration mediated the relationship between numeracy and accuracy of diagnostic inferences. In contrast, in the visual aid condition, patients at all levels of numeracy showed high-levels of inferential accuracy and metacognitive judgment calibration. Results indicate that accurate metacognitive assessment may explain the beneficial effects of visual aids and numeracy --a result that accords with theory suggesting that metacognition is an essential part of risk literacy. We conclude that well-designed risk communications can inform patients about health-relevant numerical information while helping them assess the quality of their own risk comprehension. (shrink)

Archaeology's Visual Culture explores archaeology through the lens of visual culture theory. The insistent visuality of archaeology is a key stimulus for the imaginative and creative interpretation of our encounters with the past, acknowledging the multiplicity of meanings that cohere around artifacts, archaeological sites and museum displays. Archaeology's Visual Culture investigates the nature of this projection, revealing an embedded subjectivity in the imagery of archaeology. Using a wide range of case studies the book highlights the way (...) archaeologists view objects and the consequences that ensue from ways of seeing"--Provided by publisher. (shrink)

An important issue for visual argumentation is its relationship to propositions, since it has been argued that, in order to be arguments, images should be propositional. The first part of the paper will approach this debate from a theoretical perspective. After quickly surveying the field on the issue, I will address the relationship between images and propositions. Three specific questions will be examined: can propositions accurately account for the way images express arguments?; are verbal propositions necessary to reconstruct arguments (...) that images alone cannot convey, due to their lacking linguistic tools?; are images essentially non-propositional because they don’t have truth-value? The second part of the paper will include a detailed analysis of two posters. From these analyses, I will ultimately conclude that some images can display a visual argument without necessarily being propositional. (shrink)

Recent advances in our understanding of visual perception have shown it to be a far more complex and counterintuitive process than previously believed. Several important consequences follow from this. First, the design of an effective statistical graphics system is unlikely to succeed based on intuition alone; instead, it must rely on a more sophisticated, systematic approach. The basic elements of such an approach are outlined here, along with several design principles. An overview is then given of recent advances in (...) our understanding of visual perception, including rapid perception, visual attention, and scene perception. It then is argued that the mechanisms involved can be successfully harnessed to allow data to be displayed more effectively than at present. Several directions of development are discussed, including effective use of visual attention, the display of dynamic information, and the effective use of nonattentional and nonconscious perceptual systems. (shrink)

It has often been assumed that when we use vision to become aware of an object or event in our surroundings, this must be accompanied by a corresponding visual experience (i.e., seeing). The studies reported here show that this assumption is incorrect. When observers view a sequence of displays alternating between an image of a scene and the same image changed in some way, they often feel (or sense) the change even though they have no visual experience (...) of it. The subjective difference between sensing and seeing is mirrored in several behavioral differences, suggesting that these are two distinct modes of conscious visual perception. (shrink)

A set of visual search experiments tested the proposal that focused attention is needed to detect change. Displays were arrays of rectangles, with the target being the item that continually changed its orientation or contrast polarity. Five aspects of performance were examined: linearity of response, processing time, capacity, selectivity, and memory trace. Detection of change was found to be a self-terminating process requiring a time that increased linearly with the number of items in the display. Capacity for orientation (...) was found to be about 5 items, a value comparable to estimates of attentional capacity. Observers were able to filter out both static and dynamic variations in irrelevant properties. Analysis also indicated a memory for previously-attended locations. These results support the hypothesis that the process needed to detect change is much the same as the attentional process needed to detect complex static patterns. Interestingly, the features of orientation and polarity were found to be handled in somewhat different ways. Taken together, these results not only provide evidence that focused attention is needed to see change, but also show that change detection itself can provide new insights into the nature of attentional processing. (shrink)

Despite the importance of effective observational analysis in the technical aspects of climbing performance, limited research informs this aspect of climbing coach education. Thus, the purpose of the present research was to explore cognitive-perceptual mechanisms underpinning visual search strategies of expert and novice climbing coaches through the novel combination of eye-tracking technology and retrospective think-aloud methodology. Analysis of gaze data revealed expert climbing coaches to demonstrate fewer fixations of greater duration, and fixate on distinctly different areas of the (...) class='Hi'>visual display, than their novice counterparts. Retrospective think-aloud interviews further demonstrated differences in the cognitive-perceptual mechanisms underpinning these visual search strategies, with expert coaches more cognisant of their visual search strategy. To expand, the gaze behaviour of expert climbing coaches was underpinned by hierarchical and complex knowledge structures relating to principles of climbing movement. This enabled expert coaches to actively focus on the most relevant aspects of a climber’s performance for analysis. Findings demonstrate the utility of combining eye tracking and retrospective think-aloud interviewing as a new, efficient methodology of capturing the cognitive-perceptual processes of climbing coaches to inform coaching education/strategies. (shrink)

_Expanding Hermeneutics_ examines the development of interpretation theory, emphasizing how science in practice involves and implicates interpretive processes. Ihde argues that the sciences have developed a sophisticated visual hermeneutics that produces evidence by means of imaging, visual displays, and visualizations. From this vantage point, Ihde demonstrates how interpretation is built into technologies and instruments.

The capacity of visual working memory (VWM) refers to the amount of visual information that can be maintained in mind at once, readily accessible for ongoing tasks. In healthy young adults, the capacity limit of VWM corresponds to about three simple objects. While some researchers argued that VWM capacity becomes adult-like in early years of life, others claimed that the capacity of VWM continues to develop beyond middle childhood. Here we assessed whether VWM capacity reaches adult levels in (...) adolescence. Using an adaptation of the visual change detection task, we measured visual working memory capacity estimates in 13 year-olds, 16-year-olds, and young adults. We tested whether the capacity estimates observed in early or later years of adolescence were comparable to the estimates obtained from adults. Our results demonstrated that the capacity of VWM continues to develop throughout adolescence, not reaching adult levels even in 16 year-olds. These findings suggest that VWM capacity displays a prolonged development, similar to the protracted trajectories observed in various other aspects of cognition. (shrink)

_Expanding Hermeneutics _examines the development of interpretation theory, emphasizing how science in practice involves and implicates interpretive processes. Ihde argues that the sciences have developed a sophisticated visual hermeneutics that produces evidence by means of imaging, visual displays, and visualizations. From this vantage point, Ihde demonstrates how interpretation is built into technologies and instruments.

Visual number adaption is a widely accepted phenomenon. This paper advances an alternative explanation for putative cases of the phenomenon. We propose that such cases may simply reflect observers adapting to the items in perceived displays, rather than their numerical quantity. Three experiments motivate consideration of this novel proposal and call into question the evidential basis for received formulations of the number adaptation hypothesis.

Visual analytics is a new interdisciplinary field of study that calls for a more structured scientific approach to understanding the effects of interaction with complex graphical displays on human cognitive processes. Its primary goal is to support the design and evaluation of graphical information systems that better support cognitive processes in areas as diverse as scientific research and emergency management. The methodologies that make up this new field are as yet ill defined. This paper proposes a pathway for (...) development of visual analytics as a translational cognitive science that bridges fundamental research in human/computer cognitive systems and design and evaluation of information systems in situ. Achieving this goal will require the development of enhanced field methods for conceptual decomposition of human/computer cognitive systems that maps onto laboratory studies, and improved methods for conducting laboratory investigations that might better map onto real-world cognitive processes in technology-rich environments. (shrink)

In this article we present a new experimental paradigm: comparative visual search. Each half of a display contains simple geometrical objects of three different colors and forms. The two display halves are identical except for one object mismatched in either color or form. The subject's task is to find this mismatch. We illustrate the potential of this paradigm for investigating the underlying complex processes of perception and cognition by means of an eye‐tracking study. Three possible search strategies are outlined, (...) discussed, and reexamined on the basis of experimental results. Each strategy is characterized by the way it partitions the field of objects into “chunks.” These strategies are: (i) Stimulus‐wise scanning with minimization of total scan path length (a “traveling salesman” strategy), (ii) scanning of the objects in fixed‐size areas (a “searchlight” strategy), and (iii) scanning of object sets based on variably sized clusters defined by object density and heterogeneity (a “clustering” strategy). To elucidate the processes underlying comparative visual search, we introduce besides object density a new entropy‐based measure for object heterogeneity. The effects of local density and entropy on several basic and derived eye‐movement variables clearly rule out the traveling salesman strategy, but are most compatible with the clustering strategy. (shrink)

The article explores the relationship between visual culture and the fight for visibility and attention in contemporary society. It draws on a concept of visual culture which not only sees the rising significance of the visual and the proliferation of images as its defining traits, but also the fact that, today, people are—to a much higher degree—both consumers as well as producers of images. Based on this definition, it is argued that in visually oriented communication and media (...) societies, the anthropologically fundamental need for attention manifests itself as a fight for visibility which takes on the form of ever more extreme forms of public self-display. Furthermore, a portrait of two social figures—the star and the voyeur—will serve as further analysis and description of the social trends which can be tied to the emergence of today's visual culture. The article will close by discussing attention and visibility in terms of inclusion and exclusion and by proposing an analytical model for differentiating four modes of existence in a visual culture. (shrink)

Advances in neuroscience implicate reentrant signaling as the predominant form of communication between brain areas. This principle was used in a series of masking experiments that defy explanation by feed-forward theories. The masking occurs when a brief display of target plus mask is continued with the mask alone. Two masking processes were found: an early process affected by physical factors such as adapting luminance and a later process affected by attentional factors such as set size. This later process is called (...) masking by object substitution, because it occurs whenever there is a mismatch between the reentrant visual representation and the ongoing lower level activity. Iterative reentrant processing was formalized in a computational model that provides an excellent fit to the data. The model provides a more comprehensive account of all forms of visual masking than do the long-held feed-forward views based on inhibitory contour interactions. (shrink)

A modified visual search task demonstrates that humans are very good at resuming a search after it has been momentarily interrupted. This is shown by exceptionally rapid response time to a display that reappears after a brief interruption, even when an entirely different visual display is seen during the interruption and two different visual searches are performed simultaneously. This rapid resumption depends on the stability of the visual scene and is not due to display or response (...) anticipations. These results are consistent with the existence of an iterative hypothesis-testing mechanism that compares information stored in short-term memory (the perceptual hypothesis) with information about the display (the sensory pattern). In this view, rapid resumption occurs because a hypothesis based on a previous glance of the scene can be tested very rapidly in a subsequent glance, given that the initial hypothesis-generation step has already been performed. (shrink)

Instagram is currently the social media platform most associated with online images, but images from other platforms also can be collected and grouped, arrayed by similarity, stacked, matched, stained, labelled, depicted as network, placed side by side and otherwise analytically displayed. In the following, the initial focus is on Instagram, together with certain schools of thought such as Instagramism and Instagrammatics for its aesthetic and visual cultural study. Building on those two approaches, it subsequently focuses on other web and (...) social media platforms, such as Google Image Search, Twitter, Facebook and 4chan. It provides demonstrations of how querying techniques create online image collections, and how these sets are analytically grouped through arrangements collectively referred to as metapictures. (shrink)