In most cases natural language processing is seen as an isolated cognitive capability of a system. Language understanding is often restricted to the mapping of natural language expressions into an internal semantic representation, whereas language production takes an explicit semantic representation as input, from which a natural language utterance is generated. The approach presented in this p...

Multiplayer games provide a setting for social interaction and demand a high level of coordination, both cooperative and competitive. Yet there is often very little verbal interaction. The necessary communication is through nonverbal actions. The problem is how to study action-based communication. We report on an initial study into action-based communication in online board games, including ana...

This paper presents a comparison of three different speech based task communication methods using a simulated astronaut-robot geological exploration mission as a test case. The conventional task communication method, in which the astronaut needs to communicate both the action and target, is compared against communication methods where object affordances, i.e. object action possibilities, are us...

Hoffman, Dax A. and Daniel Johnston. Neuromodulation of denM E T H O D S dritic action potentials. J. Neurophysiol. 81: 408–411, 1999. The Hippocampal slices (400 mm thick) from Sprague-Dawley rats, extent to which regenerative action potentials invade hippocampal 5–8 wk old, were prepared as described previously (Hoffman CA1 pyramidal dendrites is dependent on both recent activity and and John...

Thyroid hormone (TH) action is exerted mainly through regulation of gene expression by binding of T3 to the nuclear receptors. T4 plays an important role as a source of intracellular T3 in the central nervous system via the action of the type 2 deiodinase (D2), expressed in the astrocytes. A model of T3 availability to neural cells has been proposed and validated. The model contemplates that br...