"Generally, people don't want to admit they've lied," says Catalina Toma, communication science professor at the University of Wisconsin–Madison. "But we don't have to rely on the liars to tell us about their lies. We can read their handiwork."
Using personal descriptions written for Internet dating profiles, Toma and Jeffrey Hancock, communication professor at Cornell University, have identified clues as to whether the author was being deceptive.
The researchers compared the actual height, weight and age of 78 online daters to their profile information and photos on four matchmaking websites. A linguistic analysis of the group's written self-descriptions published in the February issue of the Journal of Communication revealed patterns in the liars' writing.
The more deceptive a dater's profile, the less likely they were to use the first-person pronoun "I."
"Liars do this because they want to distance themselves from their deceptive statements," Toma says.
The liars often employed negation, a flip of the language that would restate "happy" as "not sad" or "exciting" as "not boring." And the fabricators tended to write shorter self-descriptions in their profiles — a hedge, Toma expects, against weaving a more tangled web of deception.
"They don't want to say too much," Toma says. "Liars experience a lot of cognitive load. They have a lot to think about. They less they write, the fewer untrue things they may have to remember and support later."
Liars were also careful to skirt their own deception. Daters who had lied about their age, height or weight or had included a photo the researchers found to be less than representative of reality, were likely to avoid discussing their appearance in their written descriptions, choosing instead to talk about work or life achievements.
The toolkit of language clues gave the researchers a distinct advantage when they re-examined their pool of 78 online daters.
"The more deceptive the self-description, the fewer times you see 'I,' the more negation, the fewer words total — using those indicators, we were able to correctly identify the liars about 65 percent of the time," Toma says.
A success rate of nearly two-thirds is a commanding lead over the untrained eye. In a second leg of their study, Toma and Hancock asked volunteers to judge the daters' trustworthiness based solely on the written self-descriptions posted on their online profiles.
"We asked them to tell us how trustworthy the person who wrote each profile was. And, as we expected, people are just bad at this," Toma says. "They might as well have flipped a coin ... They're looking at the wrong things."
About 80 percent of the 78 profiles in the study, which was supported by the National Science Foundation, strayed from the truth on some level.
"Almost everybody lied about something, but the magnitude was often small," Toma says.
Weight was the most frequent transgression, with women off by an average of 8.5 pounds and men missing by 1.5 pounds on average. Half lied about their height, and nearly 20 percent changed their age.
Studying lying through online communication such as dating profiles opens a door on a medium in which the liar has more room to maneuver.
"Online dating is different. It's not a traditional interaction," Toma says.
For one, it's asynchronous. The back-and-forth of an in-person conversation is missing, giving a liar the opportunity to respond at their leisure or not at all. And it's editable, so the first telling of the story can come out exactly like the profile-writer would like.
"You have all the time in the world to say whatever you want," Toma says. "You're not expected to be spontaneous. You can write and rewrite as many times as you want before you post, and then in many cases return and edit yourself."
Toma says the findings are not out of line with what we know about liars in face-to-face situations.
"Online daters' motivations to lie are pretty much the same as traditional daters'," she says. "It's not like a deceptive online profile is a new beast, and that helps us apply what we can learn to all manners of communication"
But don't go looking just yet for the dating site that employs Toma's linguistic analysis as a built-in lie detector.
"Someday there may be software to tell you how likely it is that the cute person whose profile you're looking at is lying to you, or even that someone is being deceptive in an e-mail," Toma says. "But that may take a while."
– Chris Barncard, 608-890-0465, firstname.lastname@example.org
Catalina Toma | EurekAlert!
New Technologies for A/V Analysis and Search
13.04.2017 | Fraunhofer-Institut für Digitale Medientechnologie IDMT
On patrol in social networks
25.01.2017 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
25.04.2017 | Physics and Astronomy
25.04.2017 | Materials Sciences
25.04.2017 | Life Sciences