A user-centered approach to road design : blending distributed situation awareness with self-explaining roads

Driving is a complex dynamic task. As the car driver drives along a route they have to adjust their driving technique in accordance with the traffic level, infrastructure and environment around them. The amount of information in the environment would be overwhelming were it not for the presence of stored mental templates, accumulated through training and experience, which become active when certain features are encountered. Problems occur when the environment triggers the incorrect templates, or fails to trigger the correct templates. Problems like these can be overcome by adopting a “self-explaining” (SER) approach to road design. That is to say, purposefully designed roads which trigger correct behaviour. A concept which can help improve the theoretical robustness of the SER approach is Situation Awareness (SA). SA describes how the environment and mental templates work together to ensure drivers remain coupled to the dynamics of their situation. It is a widely researched concept in the field of Human Factors but not in the domain of Self-Explaining Roads (SER), despite the very obvious conceptual overlaps. This thesis, for the first time, blends the two approaches, SA and SER, together. From this the ability to extract cognitively salient features and ability to enhance driving behaviour and their effects on driving behaviour are sufficiently enhanced. After establishing SA as critical to driving through literature review the experiment phase started with determining the source of driver SA. Road environment was found to be of utmost importance for feeding into driver SA. This was also confirmed with the results of the on-road exploratory study. The success of the exploratory study led to large scale naturalistic study. It provided data on driver mental workload, subjective situation awareness, speed profile and endemic feature. Endemic features are unique characteristics of a road which make a road what it is. It was found that not all endemic features contribute to SA of a road system. Therefore through social network analysis list of cognitive salient features were derived. It is these cognitive salient features which hold compatible SA and facilitate SA transaction in a road system. These features were found to reduce speed variance among drivers on a road. The thesis ends by proposing a ‘road drivability tool’ which can predict potentially dangerous zones. Overall, the findings contribute to new imaginative ways road design in order to maximize safety and efficiency

Perceptual assimilation, discrimination, and acquisition of non-native and second-language vowels assimilated as uncategorised

Non-native and second-language (L2) phones are perceived in terms of their similarities and differences to the listener’s native (L1) phonemes. A non-native phone that is reliably identified as similar to a single L1 phoneme is described as being categorised according to PAM/PAM-L2 (Best, 1995; Best & Tyler, 2007), and such categorised assimilations have been the focus of much of the research on non-native and L2 speech perception. It is also possible that non-native/L2 phones are perceived as being speech-like, but are not identified with any one particular L1 phoneme. In such instances, they are said to be assimilated as uncategorised. This thesis presents experiments designed to address how these uncategorised phones are perceived, discriminated, and acquired by adult L2 learners. The findings have theoretical implications for models of cross-language and L2 speech perception, and contribute to our understanding of the perception and acquisition of uncategorised phones. The first question addressed in this thesis was whether there were any systematic differences in the way in which uncategorised non-native phones are assimilated within the L1 phonological system. In the first experiment, native Egyptian Arabic speakers residing in Egypt perceptually assimilated and rated all of the Australian English vowels in relation to their L1 vowels. Results revealed new assimilation types for uncategorised phones. They may be perceived as being moderately similar to just a single L1 phoneme (focalised), to two or more L1 phonemes (clustered), or unlike any of the L1 phonemes (dispersed). This suggests that not all uncategorised phones are perceived in the same way, but rather, they vary in the extent to which they are perceptually identified with L1 phonemes. The second set of experiments addressed the issue of how well pairs of non-native phones might be discriminated when one or both phones are assimilated as uncategorised (i.e., Uncategorised-Uncategorised and Uncategorised-Categorised assimilations, respectively). Native Australian English speakers discriminated Danish monophthongal and diphthongal vowel contrasts varying in assimilation type, including Uncategorised-Uncategorised and Uncategorised-Categorised. Discrimination accuracy was modulated by the presence of perceived phonological overlap in the categorisations to L1 phonemes, with partially overlapping contrasts discriminated less accurately than non-overlapping contrasts. By considering the different uncategorised assimilations and the presence of perceived phonological overlap to L1 categories, it was possible to fine-tune predictions for Uncategorised- Uncategorised and Uncategorised-Categorised assimilations much better than if overlap were not considered. The final aim of this thesis was to examine the acquisition of uncategorised L2 phones in adults. It was predicted that new category formation would be more likely to occur for uncategorised, than for categorised, L2 phones. Egyptian Arabic speakers acquiring Australian English in an immersion setting were recruited for a 1-year longitudinal study. They were assessed on their perceptual assimilation of the English vowels, and also on their discrimination accuracy of English vowels that formed Uncategorised-Uncategorised and Uncategorised-Categorised assimilations, as it is these assimilations that should be easily acquired according to the PAM (Best, 1995) and SLM (Flege, 1995) theoretical models. The learners were not absolute beginners, but they differed on six factors related to L2 experience (i.e., length of residence, age of foreign language acquisition, age of immersion, proportion of L2 use, L2 vocabulary size, and duration of English as a foreign language training). There was no evidence of new category acquisition, perhaps because they had already reached a plateau in L2 learning at the start of the study, or possibly because a longer period of immersion may be needed to determine whether they show improvements over time. However, by considering variability among individual learners, the six factors were shown to predict discrimination accuracy to a certain extent, predominantly for Uncategorised-Uncategorised and Uncategorised-Categorised assimilations. Overall, the experiments reported in this thesis provided a much-needed systematic and thorough investigation into the perceptual assimilation, discrimination, and acquisition of uncategorised non-native/L2 phones. The experiments demonstrated that uncategorised phones vary in their perceptual assimilation to the L1, and that discrimination accuracy is dependent upon the presence of perceived phonological overlap for contrasts involving uncategorised phones. This has important theoretical implications for both cross-language and L2 speech perception models. A number of interesting questions are also raised for L2 phonological category formation, answers to which have the potential to provide a step forward in our understanding of L2 acquisition

Designing Sound for Social Robots: Advancing Professional Practice through Design Principles

Sound is one of the core modalities social robots can use to communicate with the humans around them in rich, engaging, and effective ways. While a robot's auditory communication happens predominantly through speech, a growing body of work demonstrates the various ways non-verbal robot sound can affect humans, and researchers have begun to formulate design recommendations that encourage using the medium to its full potential. However, formal strategies for successful robot sound design have so far not emerged, current frameworks and principles are largely untested and no effort has been made to survey creative robot sound design practice. In this dissertation, I combine creative practice, expert interviews, and human-robot interaction studies to advance our understanding of how designers can best ideate, create, and implement robot sound. In a first step, I map out a design space that combines established sound design frameworks with insights from interviews with robot sound design experts. I then systematically traverse this space across three robot sound design explorations, investigating (i) the effect of artificial movement sound on how robots are perceived, (ii) the benefits of applying compositional theory to robot sound design, and (iii) the role and potential of spatially distributed robot sound. Finally, I implement the designs from prior chapters into humanoid robot Diamandini, and deploy it as a case study. Based on a synthesis of the data collection and design practice conducted across the thesis, I argue that the creation of robot sound is best guided by four design perspectives: fiction (sound as a means to convey a narrative), composition (sound as its own separate listening experience), plasticity (sound as something that can vary and adapt over time), and space (spatial distribution of sound as a separate communication channel). The conclusion of the thesis presents these four perspectives and proposes eleven design principles across them which are supported by detailed examples. This work contributes an extensive body of design principles, process models, and techniques providing researchers and designers with new tools to enrich the way robots communicate with humans

Proceedings of the 3rd international conference on disability, virtual reality and associated technologies (ICDVRAT 2000)

The proceedings of the conferenc

Shared cross-modal associations and the emergence of the lexicon

This thesis centres around a sensory theory of protolanguage emergence, or STP. The STP proposes that shared biases to make associations between sensory modalities provided the basis for the emergence of a shared protolinguistic lexicon. Crucially, this lexicon would have been grounded in our perceptual systems, and thus fundamentally non-arbitrary. The foundation of such a lexicon lies in shared cross-modal associations: biases shared among language users to map properties in one modality (e.g., visual size) onto another (e.g., vowel sounds). While there is broad evidence that we make associations between a variety of modalities (Spence, 2011), this thesis focuses specifically on associations involving linguistic sound, arguing that these associations would have been most important in language emergence. Early linguistic utterances, by virtue of their grounding in shared cross-modal associations, could be formed and understood with high mutual intelligibility. The first chapter of the thesis will outline this theory in detail, addressing the nature of the proposed protolanguage system, arguing for the utility of non-arbitrariness at the point of language emergence, and proposing evidence for the likely transition form a non-arbitrary protolanguage to the predominantly arbitrary language systems we observe today. The remainder of the thesis will focus on providing empirical evidence to support this theory in two ways: (i) presenting experimental data showing evidence of shared associations between linguistic sound and other modalities, and (ii) providing evidence that such associations are evident cross-linguistically, despite the predominantly arbitrary nature of modern languages. Chapter two will examine well-documented associations between vowel quality and physical size (e.g., /i/ is small, and /a/ is large; Sapir, 1929). This chapter presents a new experimental approach which fails to find robust associations between vowel quality and size absent the use of a forced choice paradigm. Chapter three turns to associations between linguistic sound and shape angularity, taking a critical perspective on the classic takete/maluma experiment (Kohler, 1929). New empirical evidence shows that the acquisition of visual word forms plays a highly influential role in mediating associations between linguistic sound and angularity, but that associations between linguistic sound and visual form also play a minor role in auditory tasks. Chapter four will examine a relatively unexplored modality: taste. A simple survey which asks participants to choose non-words to match representative tastes shows that certain linguistic sounds are preferred for certain food items. In a more detailed study, we use a more direct perceptual matching task with actual tastants and synthesises speech sounds, further showing that people make robust shared associations between linguistic sound and taste. Chapter five returns to the visual modality, considering previously unexmained associations between linguistic sound and motion, specifically the feature of speed. This study demonstrates that people do make robust associations between the two modalities, particularly for vowel quality. Chapter six will aim to take a different empirical approach, considering non-arbitrariness in natural language. Motivated by the experimental data from the previous chapters, we turn to corpus analyses to assess the presence of non-arbitrariness in natural language which concurs with behavioural data showing linguistic cross-modal associations. First, a corpus analysis of taste synonyms in English shows small but significant correlations between form and meaning. With the goal of addressing the universality of specific sound-meaning associations, we examine cross-linguistic corpora of taste and motion terms, showing that particular phonological features tend to connect to certain tastes and types of motion across genetically and geographically distinct languages. Lastly, the thesis will conclude by considering the STP in light of the empirical evidence presented, and suggesting possible future empirical directions to explore the theory more broadly

Bodily sensation in contemporary extreme horror film

Bodily Sensation in Contemporary Extreme Horror Film provides a theory of horror film spectatorship rooted in the physiology of the viewer. In a novel contribution to the field of film studies research, it seeks to integrate contemporary scientific theories of mind with psychological paradigms of film interpretation. Proceeding from a connectionist model of brain function that proposes psychological processes are underpinned by neurology, this thesis contends that whilst conscious engagement with film often appears to be driven by psychosocial conditions – including cultural influence, gender dynamics and social situation – it is physiology and bodily sensation that provide the infrastructure upon which this superstructure rests. Drawing upon the philosophical works of George Lakoff, Mark Johnson and Alain Berthoz, the argument concentrates upon explicating the specific bodily sensations and experiences that contribute to the creation of implicit structures of understanding, or embodied schemata, that we apply to the world round us. Integrating philosophy with contemporary neurological research in the spheres of cognition and neurocinematics, a number of correspondences are drawn between physiological states and the concomitant psychological states often perceived to arise simultaneously alongside them. The thesis offers detailed analysis of a selection of extreme horror films that, it is contended, conscientiously incorporate the body of the viewer in the process of spectatorship through manipulation of visual, auditory, vestibular, gustatory and nociceptive sensory stimulations, simulations and the embodied schemata that arise from everyday physiological experience. The phenomenological film criticism of Vivian Sobchack and Laura U. Marks is adopted and expanded upon in order to suggest that the organicity of the human body guides and structures the psychosocial engagement with, and interpretation of, contemporary extreme horror film. This project thus exposes the body as the architectural foundation upon which conscious interaction with film texts occurs

Design strategies for the exploration of product meaning in meaning-driven innovation

Design has been framed as a driver of innovation through product meaning, but it falls short when it comes to dedicated knowledge and methods directly applicable into design practices. Structured by Design Research Methodology (DRM) (Blessing and Chakrabarti 2009), this thesis combines exploratory research with practice-based design research. This thesis presents a literature review covering design studies, psychology, cognitive semantics, linguistics, marketing, innovation management and new product development. Together combined these have been used to develop a new framework of ‘product meaning’ consisting of 4 definitions: meaning as conceptualisation, as importance, as intention, and as representation. The framework has been used to demonstrate that different types of meaning are utilised throughout different stages of product development. Meaning as conceptualisation is identified as fundamental, and the most suitable, for design practice engaged in product meaning innovation. Three strategies of innovation of product meaning through product re-purposing are identified. Furthermore, from the field of cognitive science, theories and methods such as concept categorisation, thematic roles and conceptual blending are used as analysis tools for the selected 6 examples of innovative new meaning products. The structure of meaning innovations has been identified to consist of seven distinctive elements. Ten common characteristics of new meaning innovations are identified and, additionally, an exploratory method of current meanings of products is presented. Moreover, through engagement in practice-based design research a new meaning-driven design process has been developed. The findings from this research have been combined into a new design platform for an approach to meaning innovation and evaluated with experienced designers.</div

The Processing of Emotional Sentences by Young and Older Adults: A Visual World Eye-movement Study

Carminati MN, Knoeferle P. The Processing of Emotional Sentences by Young and Older Adults: A Visual World Eye-movement Study. Presented at the Architectures and Mechanisms of Language and Processing (AMLaP), Riva del Garda, Italy