Studies show promise using drones to elicit emotional responses

Ben-Gurion U. studies show promise using drones to elicit emotional responses
Set of rendered faces representing six basic emotions in three different intensity levels. All emotion categories performed well, only Disgust did not perform as well as the other emotions. Credit: ©Viviane Herdel.

As drones become more ubiquitous in public spaces, researchers at Ben-Gurion University of the Negev (BGU) have conducted the first studies examining how people respond to various emotional facial expressions depicted on a drone, with the goal of fostering greater social acceptance of these flying robots.

The research, which was presented recently at the virtual ACM Conference on Human Factors in Computing Systems, reveals how people react to common facial expressions superimposed on drones.

“There is a lack of research on how drones are perceived and understood by humans, which is vastly different than ground robots.” says Prof. Jessica Cauchard together with Viviane Herdel of BGU’s Magic Lab, in the BGU Department of Industrial Engineering & Management. “For the first time, we showed that people can recognize different emotions and discriminate between different emotion intensities.”

BGU researchers conducted two studies using a set of rendered robotic facial expressions on drones that convey basic emotions. The faces use four core facial features: eyes, eyebrows, pupils, and mouth. The results showed that five different emotions (joy, sadness, fear, anger, surprise) can be recognized with high accuracy in static stimuli, and four emotions (joy, surprise, sadness, anger) in dynamic videos. Disgust was the only emotion that was poorly recognized.

“Participants were further affected by the drone and presented different responses, including empathy, depending on the drone’s emotion,” Prof. Cauchard says. “Surprisingly, participants created narratives around the drone’s emotional states and included themselves in these scenarios.”

Ben-Gurion U. studies show promise using drones to elicit emotional responses
Screenshots from video stimuli of drone displaying Surprise. The emotion intensity increases from a to to b. Credit: Ben-Gurion University of the Negev

BGU researchers propose a number of recommendations that will enhance the acceptability of drones for use in emotional support and other social situations. These include adding anthropomorphic features, using the five basic emotions, and using empathetic responses to drive compliance in health and behavior change applications.

“BGU is spearheading some of the most remarkable robotic research in the world,” says Doug Seserman, chief executive officer, Americans for Ben-Gurion University. “We foresee continued innovation leveraging human-drone interaction technologies, leading to greater adoption and more beneficial applications.”

Artificial intelligence still lags behind humans at recognising emotions

More information:
Viviane Herdel et al, Drone in Love: Emotional Perception of Facial Expressions on Flying Robots, Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems (2021). DOI: 10.1145/3411764.3445495

Provided by
American Associates, Ben-Gurion University of the Negev

Studies show promise using drones to elicit emotional responses (2021, June 2)
retrieved 5 June 2021

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