skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.


Title: Wild animals suppress the spread of socially transmitted misinformation
Understanding the mechanisms by which information and misinformation spread through groups of individual actors is essential to the prediction of phenomena ranging from coordinated group behaviors to misinformation epidemics. Transmission of information through groups depends on the rules that individuals use to transform the perceived actions of others into their own behaviors. Because it is often not possible to directly infer decision-making strategies in situ, most studies of behavioral spread assume that individuals make decisions by pooling or averaging the actions or behavioral states of neighbors. However, whether individuals may instead adopt more sophisticated strategies that exploit socially transmitted information, while remaining robust to misinformation, is unknown. Here, we study the relationship between individual decision-making and misinformation spread in groups of wild coral reef fish, where misinformation occurs in the form of false alarms that can spread contagiously through groups. Using automated visual field reconstruction of wild animals, we infer the precise sequences of socially transmitted visual stimuli perceived by individuals during decision-making. Our analysis reveals a feature of decision-making essential for controlling misinformation spread: dynamic adjustments in sensitivity to socially transmitted cues. This form of dynamic gain control can be achieved by a simple and biologically widespread decision-making circuit, and it renders individual behavior robust to natural fluctuations in misinformation exposure.  more » « less
Award ID(s):
1855956 2222478
PAR ID:
10426909
Author(s) / Creator(s):
; ; ; ; ;
Date Published:
Journal Name:
Proceedings of the National Academy of Sciences
Volume:
120
Issue:
14
ISSN:
0027-8424
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
More Like this
  1. Engineering education research has long been rich in behavioral observations and inquiries. These investigations span a range of levels, from individual behaviors to group dynamics to organizational influences. Such behavioral research delves into the complex interplay of behaviors and actions, exploring their origins and impacts on educational environments and structures. Topics encompass learning, identity development, engagement, and professional practices, among others, that benefit from understanding behavioral choices and their underlying motivations. Ultimately, behavioral research in engineering education aids in comprehending and predicting how individuals operate, form habits, and transform themselves and their surroundings through their chosen actions. Regrettably, behavioral research in engineering education has traditionally relied on a limited set of frameworks, like EVT, SDT, and self-efficacy, thereby restricting the analytic depth of behavioral choice. These frameworks primarily focus on whether individuals feel they can perform a certain behavior or which behaviors are most salient in given situations while overlooking the justifications, or the why, that drive behavioral choices – a critical aspect of the complete picture. Justifications are important; behaviors are context-specific and dynamic, closely tied to an individual's interpretations of their surroundings, expectations, self-concept, and goals, among other factors. Therefore, understanding why behaviors are performed yields a more nuanced image that combines these influences with their eventual outcomes. In an effort to explore behavioral choices and investigate why they are, or are not, performed, this paper presents the Reasoned Action Approach (RAA) framework. This approach emphasizes the pivotal role of intention in individuals' behavioral choices. It proposes that personal beliefs, norms, and abilities are the key determinants of intentionality. Whether or not an individual performs a behavior is therefore contingent upon their beliefs about performing the behavior, specifically their behavioral, normative, and control beliefs. These beliefs reveal their feelings toward a behavior, their expectations of social acceptability, and their perceived capability to execute the behavior. As a result, the RAA transcends contextual constraints and can be applied to a wide spectrum of behaviors, environments, and systems, shedding light on how individuals perceive actions and decide whether to act upon them. We introduce the RAA to offer engineering education research a substantive theory for extracting and investigating the determinants behind individuals' preferential behaviors. Further, the RAA broadens existing behavioral analysis by emphasizing the factors behind behavioral choices, specifically focusing on the intricate interplay between beliefs and social norms in the decision-making process. In this context, the RAA represents a distinctive and novel approach to conceptualizing behavior, which will benefit fellow researchers. This paper begins with a review of pertinent engineering and higher education literature to situate the RAA within similar behavioral choice studies. It then explores the components of the RAA, delving into their significance and implications. The paper concludes with select research both within and beyond the engineering education domain to underscore the applicability, utility, and relevance of the RAA and provide examples for future inquiries. 
    more » « less
  2. Abstract Behavioral phenotypic traits or “animal personalities” drive critical evolutionary processes such as fitness, disease and information spread. Yet thestability of behavioral traits, essential by definition, has rarely been measured over developmentally significant periods of time, limiting our understanding of how behavioral stability interacts with ontogeny. Based on 32 years of social behavioral data for 179 wild bottlenose dolphins, we show that social traits (associate number, time alone and in large groups) are stable from infancy to late adulthood. Multivariate analysis revealed strong relationships between these stable metrics within individuals, suggesting a complex behavioral syndrome comparable to human extraversion. Maternal effects (particularly vertical social learning) and sex-specific reproductive strategies are likely proximate and ultimate drivers for these patterns. We provide rare empirical evidence to demonstrate the persistence of social behavioral traits over decades in a non-human animal. 
    more » « less
  3. Design decision-making under competition is a critical challenge in real-world engineering design. These challenges are compounded by bounded rationality, where cognitive limitations and imperfect information influence decision-making strategies. To address these issues, we develop a game-theoretic research platform to investigate team-based design under competition. This platform abstracts and simulates real-world competitive design scenarios through controlled experiments. It features a user-friendly interface to collect behavioral data, which supports the analysis of team and individual strategies. Additionally, we validated the platform through a pilot study, demonstrating its ability to capture realistic design features and generate meaningful insights into competitive design behaviors. 
    more » « less
  4. Human behavior shapes epidemic trajectories, evolving as individuals reassess risks over time. Our study closes the loop between epidemic status, individual risk assessments, and interactions. We developed an agent-based model where the individuals can alter their decisions based on perceived risks. In our model, agents’ perceived risk is proxied by their full awareness of actual risks, such as the probability of infection or death. We conducted several simulations of COVID-19 spread for a large metropolitan city akin to New York City, covering the period from December 2020 to May 2021. Our model allows residents to decide daily on traveling to crowded city areas or stay in neighborhoods with relatively lower population density. Our base run simulations indicate that when individuals assess their own risk and understand how diseases spread, they adopt behaviors that slow the spread of virus, leading to fewer cumulative cases and deaths but extending the duration of the outbreak. This model was then simulated with various vaccination strategies such as random distribution, prioritizing older individuals, high-contact-rate individuals, or crowded area residents, all within a risk-response behavioral framework. Results show that, in the presence of agents’ behavioral response, there is only a marginal difference across different vaccination strategies. Specifically, vaccination in crowded areas slightly outperformed other vaccination strategies in reducing infections and prioritizing the elderly was slightly more effective in decreasing deaths. The lack of a universally superior vaccination strategy comes from the fact that lowering a risk leads to more risky behavior which partly compensates for vaccination effects. The comparable outcomes of random versus targeted vaccinations highlight the importance of equitable distribution as another key focus in pandemic responses. 
    more » « less
  5. The COVID-19 preparedness plans by the Centers for Disease Control and Prevention strongly underscores the need for efficient and effective testing strategies. This, in turn, calls upon the design and development of statistical sampling and testing of COVID-19 strategies. However, the evaluation of operational details requires a detailed representation of human behaviors in epidemic simulation models. Traditional epidemic simulations are mainly based upon system dynamic models, which use differential equations to study macro-level and aggregated behaviors of population subgroups. As such, individual behaviors (e.g., personal protection, commute conditions, social patterns) can’t be adequately modeled and tracked for the evaluation of health policies and action strategies. Therefore, this paper presents a network-based simulation model to optimize COVID-19 testing strategies for effective identifications of virus carriers in a spatial area. Specifically, we design a data-driven risk scoring system for statistical sampling and testing of COVID-19. This system collects real-time data from simulated networked behaviors of individuals in the spatial network to support decision-making during the virus spread process. Experimental results showed that this framework has superior performance in optimizing COVID-19 testing decisions and effectively identifying virus carriers from the population. 
    more » « less