The Sound of Cooperation and Deception in High Stakes Interactions

33 Pages Posted: 9 Nov 2023

See all articles by C. Monica Capra

C. Monica Capra

Claremont Colleges - Claremont Graduate University

Matthew Gomies

Claremont Colleges - Claremont Graduate University

Shanshan Zhang

Wuhan University - Economics and Management School; Claremont Colleges - Claremont Graduate University

Multiple version iconThere are 2 versions of this paper

Date Written: October 13, 2023

Abstract

Current methods for predicting cooperation and deception from communication mostly rely on analyzing transcribed messages or text. In this study, we depart from this conventional approach by focusing on the rich information embedded in the voice itself. We collected recordings of natural speech from contestants of a high-stakes popular TV show and from defendants’ and witnesses’ testimonies in actual court proceedings and used machine learning algorithms to classify cooperative and deceptive speech with an accuracy range of 58% to 79%, solely based on acoustic features. Our findings show that higher pitch and lower intonation are associated with deceptive speech, and provide insights into the potential of using voice data to predict cooperation and deception in high-stakes, natural contexts. This study has important practical implications and demonstrates the potential of using unintrusive and inexpensive voice data to gain valuable insights into social interaction.

Keywords: Communication, Cooperation, Deception, Voice, Machine Learning

JEL Classification: C91, D91, I12

Suggested Citation

Capra, C. Monica and Gomies, Matthew and Zhang, Shanshan, The Sound of Cooperation and Deception in High Stakes Interactions (October 13, 2023). Available at SSRN: https://ssrn.com/abstract=4601895 or http://dx.doi.org/10.2139/ssrn.4601895

C. Monica Capra (Contact Author)

Claremont Colleges - Claremont Graduate University ( email )

170 E. Tenth Street
Claremont, CA 91711
United States
909 607 3372 (Phone)

HOME PAGE: http://https://scholar.cgu.edu/monica-capra/

Matthew Gomies

Claremont Colleges - Claremont Graduate University ( email )

150 E. Tenth Street
Claremont, CA 91711
United States

Shanshan Zhang

Wuhan University - Economics and Management School ( email )

Hubei
China

Claremont Colleges - Claremont Graduate University ( email )

150 E. Tenth Street
Claremont, CA 91711
United States

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