Many scientists analyze 3D biological data by counting cells and other structures. Our hypothesis is that an immersive environment is better for such tasks in terms of user speed and preference than a non-immersive environment. To help test our hypothesis, we designed and implemented an interactive visualization tool for a Cave and a Fish Tank virtual environment and conducted a user study in w...

Since the dimensions of many of the objects/surfaces encountered in our daily lives are within an order of magnitude of the wavelength of audible sounds, diffraction is an elementary means of sound propagation. Despite its importance in the real-world, diffraction effects are often overlooked by acoustical modeling methods leading to a degredation in immersion or presence. This paper describes ...

—This research began with a preliminary exploratory study that observed the relationship between the facial expressions of three human lecturers in a real academic lecture theatre and the reactions of the students to those expressions. Results informed the design of the first experiment that aimed to investigate the effectiveness of a virtual lecturer's expressions on the students' learning out...

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Formative usability evaluation aims at finding usability problems during the development process. The earlier these problems are identified, the less expensive to fix they are. This paper presents some preliminary results from a formative usability testing of the 1st prototype developed for the ARiSE (Augmented Reality in School Environments) project. Keywords—AR-based educational systems, form...

This paper presents a philosophical analysis of three cognitive states familiar and important to psychoanalysts--phantasy, neurotic-belief, and belief-proper. It explores the differences among these three propositional attitudes and finds that the development of secondary process capacities of reality testing and truth directness out of earlier primary process operations (themselves prior to co...

In this paper, we present a roughness modulation technique that employs electrotactile augmentation to alter material texture perception, which is conducted through mechanically unconstrained touch. A novel electrotactile augmented reality system that superimposes modulating nerve activity onto afferent nerves at the middle phalanx of a finger is described. We conducted a user study in which pa...

This paper presents a user study designed for validating the Semiotic VR Framework, a tool that allows to identify the best-suited Virtual Reality (VR) applications to get a specified communication objective, by adopting the appropriate techniques to implement visualization, interaction and modelling of the VR application. Author

In this paper, we put forward a novel framework based on mobile augmented reality (AR) to enhance the post stroke patients participation in the rehabilitation process. The exercises performed in the rehabilitation centers are monotonous and thus requires maximum effort and time from both the patients and the occupational therapists. We propose to combine these tedious activities with the intera...

Hallucinations and delusions are the most prominent symptoms of schizophrenia and characterized by impaired reality testing. Representation-mediated taste aversion (RMTA) has been proposed as a potential behavioral assessment of reality testing and has been applied to a neurodevelopmental rat model of schizophrenia. However, the theory underlying this approach has not been generalized yet with ...