Work

Action-based confidence sharing and collective decision making

Year: 2024

Type: article

Abstract: Joint action research explores how multiple humans can coordinate their movements to achieve common goals. When there is uncertainty about the joint goal, individuals need to integrate their perceptual information of the environment to collaboratively determine their new goal. To ensure that a group reaches a consensus about the goal, collective decision making among the individuals is required. Collective decision making can be facilitated by nonverbal expressions of opinions and associated confidence levels. Here, we show that confidence sharing in groups of 2, 3, and 4 individuals can be studied using their trajectories when jointly moving toward one of several options. We found that both opinions and confidence levels can be distinguished in individual movement trajectories, and found that movement features can predict an individual's influence. Our results suggest that movement trajectories are a valid way to study confidence sharing in human collective decision making.

Source: iScience

DOI: 10.1016/j.isci.2024.111006

Authors: Nicolas Coucke, Mary Katherine Heinrich, Marco Dorigo, Axel Cleeremans

Institutions: Université Libre de Bruxelles, Ghent University

Language: English

Topic: Action Observation and Synchronization

Subfield: Social Psychology

Field: Psychology

Domain: Social Sciences

Open Access status: gold

Estimated APC paid: $3,150

Funders: Fonds De La Recherche Scientifique - FNRS, Université Libre de Bruxelles, Fonds Alice et David van Buuren, Australian Research Council