Elsevier

Computers in Human Behavior

Volume 91, February 2019, Pages 33-41
Computers in Human Behavior

Full length article
Context in a bottle: Language-action cues in spontaneous computer-mediated deception

https://doi.org/10.1016/j.chb.2018.09.008Get rights and content

Highlights

  • Context of computer-mediated deception based on collective language-action cues.

  • Spontaneous interactive communication captured in sociotechnical research system.

  • Repeated measures ANOVA testing pairwise interaction yields high observed power.

  • Statistically significant differentiation found between deceivers and truth-tellers.

  • Research foundation for computational approach in an online polygraph system.

Abstract

Context always matters in online deception. This study conceptualizes language-action cues as a dynamic and interactive representation of context, and explores indicators of interpersonal deception in spontaneous computer-mediated communication. An online game was designed and developed to simulate computer-mediated deception scenarios in pairwise interactive dialogue that is difficult to capture in the real world. The study was conducted with 40 research participants in 80 game sessions during 2014 and 2015. Research results demonstrate the efficacy of language-action cues in revealing deception during pairwise interaction. The study contributes a novel perspective on viewing interaction using language-action cues to define context, with a sociotechnical research design that can computationally differentiate between deceivers and truth-tellers in spontaneous pairwise interaction.

Introduction

As users of computer-mediated communication (CMC) are exposed to an increasing number and variety of risks associated with online deception, it has become more and more important—and increasingly challenging—for users to guard against deceptive activities (e.g., fake review, opinion spam, spear phishing, identity fraud). The key is the ability to correctly interpret and codify the underlying intent of the message sender. In face-to-face (F2F) communication, the assessment of context is informed by words that are accompanied by other physical cues such as body language and facial expressions. CMC, in comparison, is “cue lean.” Thus, to derive context, a message receiver has only words to consider during a message exchange. Context is often difficult to ascertain; however, as Dourish (2004) states, context is a relational—or even an occasioned property. Context is not static, but dynamically defined by activity and the associated interaction. In CMC, we may only derive context (and hence intent) from the interaction itself—including the words used, and any other associated non-verbal cues. Thus, our research question is: How do language-action cues derive context, and further the identification of spontaneous computer-mediated deception?

In this paper, we first discuss the creation of interaction context through language-action cues, and then argue that language-action cues can reveal and visualize communicative intent. Different types of communication modes and media can have an impact on computer-mediated deception, which is further examined. Our research considers and models a sociotechnical system that represents synchronous computer-mediated interaction. An online game was designed and developed to simulate interpersonal computer-mediated deception in pairwise interaction. We collected and analyzed the data to uncover patterns that can provide subtle cues to deceptive intent. Specifically, linear, logistic regression and mixed model ANOVA approaches were deployed to analyze the efficacy and accuracy of certain language-action cues for detecting computer-mediated deception in synchronous, spontaneous communications. The paper concludes with some reflections on implications, limitations, as well as potential directions for future research.

Section snippets

Computer-mediated deception

Online communication is interpersonal and interactive. It involves a sender and one or more receiver(s) who are engaged in an (more-or-less) interactive exchange. Each iteration of an interaction between a sender and a receiver helps to shape the context of communication. Within this exchange, there is often an opportunity for a message sender to influence the receiver(s) actions or beliefs. Accordingly, Miller, Deturck, and Kalbfleisch (1983) described deceptive communication as “… a general

Research design

To investigate context-sensitive and spontaneity in computer-mediated deception, we modeled interaction to better understand the role of context (Dourish, 2004). An online game system was designed and developed to mimic spontaneity in interpersonal deception scenarios, and to capture players’ interactive conversations during pairwise interaction. This system creates a conceptual basis for further exploration of the dynamics of intentional deception. The use and efficacy of language-action cues

Method

A mixed method was employed in this research. Qualitative data (i.e., players’ conversations and interactions) was captured and analyzed quantitatively.

Data analysis

After the data had been cleaned, the linguistic cues from the data were extracted according to the categories established in the Linguistic Inquiry and Word Count (LIWC) tool (Newman et al., 2003; Pennebaker & King, 1999).

Summary and discussion

One of our objectives in undertaking this study was to demonstrate the efficacy that language-action cues can collectively represent in the context of information exchange, which can be indicative to revealing a deceiver. We first performed linear regressions to examine the efficacy of the dataset. Three models were generated, and each model consists of different combinations of language-action cues, thereby demonstrating the efficacy of contextual illustration. Language-action cues are able to

Limitations and future work

Our research demonstrates the effectiveness of adopting Google + Hangout as a communication platform for this experiment; however, technical limitations were also experienced. In particular, players sometimes experienced technical problems in logging into the Google + pseudo accounts created for the game, and when launching the game interface. These difficulties not only confused and distracted players, but also reduced the overall amount of time spent in the game itself, thus reducing our

Contributions and conclusion

Communicators’ actions are embedded in their language-action cues in the iteration of message exchange, and these actions define the interactivity that shapes the dynamic context of computer-mediated communication. From a holistic perspective, the words and other non-verbal language-action cues, as well as the mode and medium used for communication, create the context of that interaction—which can be a viable measure to derive the communicative intent of interacting parties. Rather than a

Acknowledgements

The authors gratefully acknowledge the grants from National Science Foundation (#1347113 and #1347120, 09/01/13–08/31/15), Florida Center for Cybersecurity Collaborative Seed Grant (#2108-1072-00-O, 03/01/15–02/28/16), and Florida State University Council for Research and Creativity Planning Grant (#034138, 12/01/13–12/12/14). The authors acknowledge and appreciate the research efforts and contributions from Cheryl Booth, Sai Surya Shashanka Timmarajus, Kashyap Vemura, and Aravind Hariharan.

Shuyuan Mary Ho is an associate professor at School of Information, at Florida State University. Her research focuses on computer-mediated deception, trusted human computer interaction, cloud forensics, online games for research, and sociotechnical behavioral experiments. Her work appears in over 40 journal articles and conference proceedings and has been funded by U.S. National Science Foundation.

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  • Cited by (0)

    Shuyuan Mary Ho is an associate professor at School of Information, at Florida State University. Her research focuses on computer-mediated deception, trusted human computer interaction, cloud forensics, online games for research, and sociotechnical behavioral experiments. Her work appears in over 40 journal articles and conference proceedings and has been funded by U.S. National Science Foundation.

    Jeffrey T. Hancock is a professor of in the Department of Communication at Stanford University. He works on understanding psychological and interpersonal processes in social media by using computational linguistics and behavioral experiments to examine deception and trust, emotional dynamics, intimacy and relationships, and social support. His research has been published in over eighty journal articles and conference proceedings, and has been supported by funding from the U.S. National Science Foundation and the U.S. Department of Defense. His work has also been featured in the popular press, including the New York Times, CNN, NPR, CBS and the BBC.

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