Alle Publikationen
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2016
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(2016): Iconic gestures for robot avatars, recognition and integration with speech. In: Frontiers in psychology 7
Abstract: Co-verbal gestures are an important part of human communication, improving its efficiency and efficacy for information conveyance. One possible means by which such multi-modal communication might be realized remotely is through the use of a tele-operated humanoid robot avatar. Such avatars have been previously shown to enhance social presence and operator salience. We present a motion tracking based tele-operation system for the NAO robot platform that allows direct transmission of speech and gestures produced by the operator. To assess the capabilities of this system for transmitting multi-modal communication, we have conducted a user study that investigated if robot-produced iconic gestures are comprehensible, and are integrated with speech. Robot performed gesture outcomes were compared directly to those for gestures produced by a human actor, using a within participant experimental design. We show that iconic gestures produced by a tele-operated robot are understood by participants when presented alone, almost as well as when produced by a human. More importantly, we show that gestures are integrated with speech when presented as part of a multi-modal communication equally well for human and robot performances. (PsycINFO Database Record (c) 2019 APA, all rights reserved)
2014
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(2014): Using politeness to model the psychosocial dynamics of power in organizational interaction. In: International Journal of Organizational Analysis 22 (2), S. 247-273. DOI: 10.1108/IJOA-09-2011-0515
DOI: https://doi.org/10.1108/IJOA-09-2011-0515 Abstract: Purpose: The purpose is to show how actors' relative power or parity is dynamically instanced in discrete speech behaviors that are exchanged throughout everyday organizational interaction. Design/methodology/approach: Politeness theory, rooted in the dramaturgical theories of Erving Goffman, details a set of linguistic indices used to show regard for others' face. This conceptual paper draws on politeness theory to model the unfolding of power relations within face-to-face verbal interchange in organizations. The paper presents a number of propositions suggesting how power differentials (or parity) are reflected in a set of common speech behaviors used to defray threats to face throughout organizational interaction. Findings: This article extends and applies politeness theory to organizations by exploring specific motives and linguistic outcomes of high and low power actors, describing the behavioral egalitarianism associated with organic organizations, and suggesting ho w the de mand characteristics of face-to-face interaction create oligarchic tendencies that militate against the success of workplace participation. Politeness' role in the social construction of power, and in distortive processes within hierarchical communication, is also discussed. Research limitations/implications: This paper enables researchers to understand the specific linguistic features associated with power-related roles, and it shows how the social distribution of certain speech behaviors is a function of power and dependency relations. Practical implications: The findings provide managers a fine-grained understanding of how power affects speech, and an understanding of how such speech patterns may stymie attempts to stimulate organizational empowerment and employee voice. Originality/value: Prior scholarship has neglected this most important topic. (PsycINFO Database Record (c) 2017 APA, all rights reserved)
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