Designing tangible objects for children’s development andlearning has been a common theme in the HCI community.However, studies involving designing of tangibles fortoddlers’ hedonic interaction and play experiences havebeen few. This paper explores how toddlers (between oneand three years old) behave when interacting with tangibleplay objects in the context of open-ended play. The aim ofthis study was to explore how the integration ofmultisensory stimuli and multimodal feedback in tangibleobjects can affect toddlers’ play, behaviors and engagementin the context of open-ended play. Furthermore, two playobjects called Sound Cubes were developed and used in aninteraction study conducted at a preschool in Stockholm.The results presented in this paper suggest that the openendedplay objects provided toddlers with opportunity formultiple manipulations that lead to interesting interactions.Moreover, multimodal feedback and multisensory stimulicreated a positive affect on toddlers’ engagement in play.

<div> <p><br></p> </div> Individuals with disabilities and persons operating in inaccessible environments can greatly benefit from the aid of robotic manipulators in performing activities of daily living (ADLs) and other remote tasks. Users relying on robotic manipulators to interact with their environment are restricted by the lack of sensory information available through traditional operator interfaces. These interfaces only allow visual task access and deprive users of somatosensory feedback that would be available through direct contact. Multimodal sensory feedback can bridge these perceptual gaps effectively. Given a set of object properties (e.g. temperature, weight) to be conveyed and sensory modalities (e.g. visual, haptic) available, it is necessary to determine which modality should be assigned to each property for an effective interface design. However, the effectiveness of assigning properties to modalities has varied with application and context. The goal of this study was to develop an effective multisensory interface for robot-assisted pouring tasks, which delivers nuanced sensory feedback while permitting high visual demand necessary for precise teleoperation. To that end, an optimization approach is employed to generate a combination of feedback properties to modality assignments that maximizes effective feedback perception and minimizes cognitive load. A set of screening experiments tested twelve possible individual assignments to form the combination. Resulting perceptual accuracy, load, and user preference measures were input into a cost function. Formulating and solving as a linear assignment problem, a minimum cost combination was generated. Results from experiments evaluating efficacy in practical use cases for pouring tasks indicate that the solution is significantly more effective than no feedback and has considerable advantage over an arbitrary design. <br>

This thesis evolves perception as a hypothesis to reframe architectural praxis negotiated through agent-situation interaction. The research questions the geometric principles of architectural ordination to originate the ‘felt_space infrastructure’, a relational system of measurement concerned with the role of perception in mediating sensory space and the cognised environment. The methodological model for this research fuses perception and environmental stimuli, into a consistent generative process that penetrates the inner essence of space, to reveal the visceral parameter. These concepts are applied to develop a ‘coefficient of affordance’ typology, ‘hypervigilant’ tool set, and ‘cognitive_tope’ design methodology. Thus, by extending the architectural platform to consider perception as a design parameter, the thesis interprets the ‘inference schema’ as an instructional model to coordinate the acquisition of spatial reality through tensional and counter-tensional feedback dynamics. Three site-responsive case studies are used to advance the thesis. The first case study is descriptive and develops a typology of situated cognition to extend the ‘granularity’ of perceptual sensitisation (i.e. a fine-grained means of perceiving space). The second project is relational and questions how mapping can coordinate perceptual, cognitive and associative attention, as a ‘multi-webbed vector field’ comprised of attractors and deformations within a viewer-centred gravitational space. The third case study is causal, and demonstrates how a transactional-biased schema can generate, amplify and attenuate perceptual misalignment, thus triggering a visceral niche. The significance of the research is that it progresses generative perception as an additional variable for spatial practice, and promotes transactional methodologies to gain enhanced modes of spatial acuity to extend the repertoire of architectural practice.

Smarta kläder är en kroppsnära teknik som består av kläder som har i sig integrerade/invävda sensorer vilka mäter kroppssignaler, arbetsställningar och rörelser och visar information om eventuella överbelastningar. Syftet i denna studie var att utvärdera prototyp 1 av ett smart arbetsklädersystem genom att utreda användarnas upplevelse (user experience) och användbarhet av prototypen samt prototypens påverkan på testpersonernas arbetsbeteende. En kombinerad studiedesign valdes. Den experimentella studien kompletterades med enkät och intervju. Tolv testpersoner deltog i undersökningen, fördelade lika på tre grupper: en kontrollgrupp och två experimentgrupper. Via tekniska mätningar samlades kinematisk data gällande: handledens vinkelhastighet och tummens tryckkraft; överarmens vinkel för höger- och vänster arm; överarmens vinkelhastighet för höger och vänster arm samt bålens vinkel vid fram- och bakåtböjningar. Signifikanta arbetsbeteendeförändringar kunde ej konstateras, men det förekom stora skillnader i de individuella resultaten i varje grupp. Dock kunde inte något specifikt mönster i arbetsbeteendeförändringar från de olika grupperna urskiljas. Hypotesen att arbetsbeteendeförändringar kan tillskrivas påverkan från prototypen stöddes inte av data. Resultatet från intervju- och enkätundersökning kring användarnas upplevelse och användbarhet visade att prototypen skattades som användarvänlig och användbar i sin helhet. Testpersonerna önskade förändringar i prototypens konstruktion gällande prototypens material och storlek, typ av feedback samt placering av sensorer. Vissa brister i design och utförandet av användartesterna och experimentmätningen konstateras och deras inverkan på studiens validitet och reliabilitet diskuteras. Rekommendationer ges gällande framtida testning av nästa prototyp utifrån de upptäckta bristerna. / Smart clothes are a group of technical aids that consist of clothing that has integrated/built-in sensors that measure body postures and movements and display information about possible physical overload. The purpose of this study was to evaluate prototype 1 of a smart workwear system by investigating its user experience and usability, as well as the impact of the prototype on the test subjects' work behavior. A combined study design was chosen. The experimental study was supplemented with questionnaire and interview. Twelve test subjects split in three equal groups participated in the study: one control group and two experimental groups. Through technical measurements, kinematic data was collected: angular velocity of the wrist and thumb pressure; right and left arm's angle; angular velocity for the right and left arm as well as the torso angle during forward and backward bending. Changes in work behavior were found. However, large differences in the individual results within each group were observed, with no obvious pattern of changes in work behavior between groups. The collected data did not support the hypothesis that work behavior changes can be associated with the impact of the prototype.  The result of analysis of the interviews and questionnaires about user experience and usability showed that the prototype was considered user-friendly and useful in general. Test subjects requested changes in the prototype’s construction regarding the prototype’s material and size, type of feedback and location of sensors.  Some shortcomings are observed in the test design, data collection and also in how the tests were conducted. Their impact on the validity and reliability of the study is discussed; accordingly, recommendations addressing the detected shortcomings are given regarding the future testing of the next prototype.