E. Thomas Schubert

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Within an embodied cognition framework, it is argued that presence in a virtual environment (VE) develops from the construction of a spatial-functional mental model of the VE. Two cognitive processes lead to this model: the representation of bodily actions as possible actions in the VE, and the suppression of incompatible sensory input. It is hypothesized(More)
It has long been argued that the possibility to interact in and with a virtual environment (VE) enhances the sense of presence. On the basis of a three-component model of presence, we specify this hypothesis and argue that the mental representation of possible actions should especially enhance spatial presence, and to a lesser extent the involvement and(More)
BACKGROUND The trauma centre of the Trauma Center Region North-West Netherlands (TRNWN) has consensus criteria for Mobile Medical Team (MMT) scene dispatch. The MMT can be dispatched by the EMS-dispatch centre or by the on-scene ambulance crew and is transported by helicopter or ground transport. Although much attention has been paid to improve the dispatch(More)
Reasoning about key escrow protocols has increasingly become an important issue. The Escrowed Encryption Standard (EES) has been proposed as a US government standard for the encryption of un-classiied telecommunications. One unique feature of this system is key escrow. The purpose of key escrow is to allow government access to session keys shared by EES(More)
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