Evidence map›Paper›PMID 27980890›Full record

ArticleComputational cognitive science2016

Mimicry and expressiveness of an ECA in human-agent interaction: familiarity breeds content!

Catherine J Stevens, Bronwyn Pinchbeck, Trent Lewis, Martin Luerssen, Darius Pfitzner, David M W Powers, Arman Abrahamyan, Yvonne Leung, Guillaume Gibert

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In one paragraph

Article in Computational cognitive science, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Technologies in Home-Based Digital Rehabilitation: Scoping Review.JMIR rehabilitation and assistive technologies · 2023
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Catherine J StevensMARCS Institute for Brain, Behaviour & Development, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751 Australia ; School of Social Sciences & Psychology, Western Sydney University, Penrith, Australia.
Bronwyn PinchbeckMARCS Institute for Brain, Behaviour & Development, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751 Australia ; School of Social Sciences & Psychology, Western Sydney University, Penrith, Australia.
Trent LewisInformatics and Engineering, Flinders University, Adelaide, Australia.
Martin LuerssenInformatics and Engineering, Flinders University, Adelaide, Australia.
Darius PfitznerSchool of Business, Charles Darwin University, Darwin, Australia.
David M W PowersInformatics and Engineering, Flinders University, Adelaide, Australia.
Arman AbrahamyanMARCS Institute for Brain, Behaviour & Development, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751 Australia ; Psychology Department, Neurosciences Institute, Stanford University, Stanford, USA.
Yvonne LeungMARCS Institute for Brain, Behaviour & Development, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751 Australia.
Guillaume GibertMARCS Institute for Brain, Behaviour & Development, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751 Australia ; INSERM, U846, 18 avenue Doyen Lépine, 69500 Bron, France ; Université de Lyon, Université Lyon 1, 69003 Lyon, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTwo experiments investigated the effect of features of human behaviour on the quality of interaction with an Embodied Conversational Agent (ECA).

methodsIn Experiment 1, visual prominence cues (head nod, eyebrow raise) of the ECA were manipulated to explore the hypothesis that likeability of an ECA increases as a function of interpersonal mimicry. In the context of an error detection task, the ECA either mimicked or did not mimic a head nod or brow raise that humans produced to give emphasis to a word when correcting the ECA's vocabulary. In Experiment 2, presence versus absence of facial expressions on comprehension accuracy of two computer-driven ECA monologues was investigated.

resultsIn Experiment 1, evidence for a positive relationship between ECA mimicry and lifelikeness was obtained. However, a mimicking agent did not elicit more human gestures. In Experiment 2, expressiveness was associated with greater comprehension and higher ratings of humour and engagement.

conclusionInfluences from mimicry can be explained by visual and motor simulation, and bidirectional links between similarity and liking. Cue redundancy and minimizing cognitive load are potential explanations for expressiveness aiding comprehension.

Indexed as

AvatarChameleon effectEmotionEvaluationExpressionIntelligibilityLikeabilityMirroringTalking head

Identifiers

PMID27980890
PMCPMC5125404

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.