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Dianne C. Berry

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Publications by Dianne C. Berry (bibliography)

» 2005 «

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Berry, Dianne C., Butler, Laurie T. and Rosis, Fiorella De (2005): Evaluating a realistic agent in an advice-giving task. In International Journal of Human-Computer Studies, 63 (3) pp. 304-327

“The aim of this study was to empirically evaluate an embodied conversational agent called GRETA in an effort to answer two main questions: (1) What are the benefits (and costs) of presenting information via an animated agent, with certain characteristics, in a 'persuasion' task, compared to other forms of display? (2) How important is it that emotional expressions are added in a way that is consistent with the content of the message, in animated agents? To address these questions, a positively framed healthy eating message was created which was variously presented via GRETA, a matched human actor, GRETA's voice only (no face) or as text only. Furthermore, versions of GRETA were created which displayed additional emotional facial expressions in a way that was either consistent or inconsistent with the content of the message. Overall, it was found that although GRETA received significantly higher ratings for helpfulness and likability, presenting the message via GRETA led to the poorest memory performance among users. Importantly, however, when GRETA's additional emotional expressions were consistent with the content of the verbal message, the negative effect on memory performance disappeared. Overall, the findings point to the importance of achieving consistency in animated agents.”

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» 1992 «

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Rosis, Fiorella De and Berry, Dianne C. (1992): User Modeling for Adaptive Presentation of Information. In: Advanced Visual Interfaces 1992 1992. pp. 258-272.

» 1990 «

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Berry, Dianne C. and Broadbent, Donald (1990): The Role of Instruction and Verbalization in Improving Performance on Complex Search Tasks. In Behaviour and Information Technology, 9 (3) pp. 175-190

“This paper examines methods of improving human search performance on a diagnostic task where it does not help to provide computer suggestions about the next enquiry to make. In three experiments it was found (a) that verbal instruction in optimal procedures was ineffective in changing actual performance, although it changed answers to verbal tests of knowledge; (b) that requiring people to say aloud the reasons for each action was ineffective in changing either performance or verbal tests of knowledge; but if people were given both verbal instructions and the requirements to justify each action aloud, performance was improved; (c) this successful training method changed performance not merely on the specific task that was trained, but also on a superficially different search task in which the same general procedures were optimal. These findings suggest that human decision processes change if key information is temporarily activated at the time it is needed, but not if it is merely learned at an irrelevant time. Such a process also explains the beneficial effect of interfaces that provide explanation or the results of inference at key points in the task.”

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Changes to this page (author)

16 Feb 2010: Enabled abstracts to be shown on Dianne C. Berry's author page.
17 Jun 2009: Author was edited

27 Jun 2007: Author was edited
28 Apr 2003: Added the author to the bibliography

Publication statistics

Publication period:1990-2005
Publication count:3
Number of co-authors:3

Productive colleagues

Dianne C. Berry's 3 most productive colleagues in number of publications:

Fiorella De Rosis:17
Donald Broadbent:3
Laurie T. Butler:1

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Number of publications with 3 favourite co-authors:

Fiorella De Rosis:2
Laurie T. Butler:1
Donald Broadbent:1

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Conference Calendar

Mar 22

Workshop on Pervasive healthcare in the home : Supporting patient motivation and engagement

Mar 22

UX People

Mar 22

ETRA '10 - Eye Tracking Research & Applications Symp.

Mar 21

“ Software design is the act of determining the user's experience with a piece of software. It has nothing to do with how the code works inside, or how big or small the code is. The designer's task is to specify completely and unambiguously the user's whole experience. ”

-- David Liddle, From Bringing Design to Software, edited by Terry Winograd, 1996 ”

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Eva Hornecker on Tangible Interaction

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Dianne C. Berry

Publications by Dianne C. Berry (bibliography)

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» 1992 «

» 1990 «

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