Olivier Gapenne

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As it turns out, this prediction is far from having been fulfilled: in spite of their scientific and social interest, their real effectiveness and a certain technological development, prosthetic devices employing the principle of "sensory substitution" are not widely used by the blind persons for whom they were originally destined. After a brief recall of(More)
Assessing implicit learning in the continuous pursuit-tracking task usually concerns a repeated segment of target displacements masked by two random segments, as referred to as Pew's paradigm. Evidence for segment learning in this paradigm is scanty and contrasts with robust sequence learning in discrete tracking tasks. The present study investigates this(More)
In this paper, we propose a formal definition of the perception as a behavioral dynamical attraction basin. The perception is built from the integration of the sensori-motor flow. Psychological considerations and robotic experiments on an embodied “intelligent” system are provided to show how this definition can satisfy both psychologist and robotician(More)
In this fundamental study, we compare two scaling methods by focusing on the subjects' strategies which are using a sensory substitution device. Method 1 consists in a reduction of the sensor size and its displacement speed. Here, speed reduction is obtained by a "human" movement reduction (hand speed reduction). Method 2 consists in a classical increase of(More)
The strategies of action employed by a human subject in order to perceive simple 2-D forms on the basis of tactile sensory feedback have been modelled by an explicit computer algorithm. The modelling process has been constrained and informed by the capacity of human subjects both to consciously describe their own strategies, and to apply explicit(More)
When the subjects handle a haptic zoom (kinaesthetic zoom through a sensory substitution device), they don't have any difficulty to make the distinction between a zoom-in and a zoom-out and this, while basing themselves on the number of pins activated under the finger. In a similar way to the visual zoom, the haptic zoom-in gives them access to the detail(More)
In this article we present a theoretical framework and some models for assisting the conception of tactile communication devices. In order to propose relevant concepts and successful innovative products, designers need to anticipate as early as possible the user experience that will emerge from actual use of the product they are developing. The way the(More)
With the spread of ICT and the Internet during the last two decades, more and more tools rely on graphical interfaces that make them scarcely accessible to the visually impaired. The ITOIP project aims at developing the use of a tactile perceptual supplementation system called Tactos. A partnership with a visually impaired persons (VIP) association allows(More)
In order to resolve PDA display problems, we validated, in a previous study, the efficiency of a new zooming technique associated with a tactile feedback (haptic zoom). The displayed objects on a PDA screen being relatively small, it appears essential, in the present study, to define minimal and maximal comfort thresholds to ease gesture execution that(More)