Data Supplement
- Supplementary material - Appendix containing technical aspects and one figure
Article Figures & Data
Figures
- Figure 1.
A diagram depicting domains of human decision-making, based on a continuum from individual learning to social learning on the horizontal axis (J) and the transparency of pay-offs informing a decision (intensity of choice) on the vertical axis (b). After [25]. (Online version in colour.)
- Figure 2.
A comparison between a plot for understanding the group movement among social animals and the outcome of the decision heuristic in figure 1. (a) Field data among wild baboons [27] showing directional agreement among initiators of movement on the vertical axis and the number of initiators on the horizontal axis. (b) A contour plot in the framework of figure 1, showing the maximum fitness for three choices when that fitness is defined as a function of both the inherent utility of the choice and its social popularity [28]. Plot (b) shows the maximum fitness at each coordinate because multiple equilibria may be possible at each point. (Online version in colour.)
- Figure 3.
Distributions of choice popularity for 2003–2004 (a) and 2007–2008 (b). Data shown for females in red and males in blue. The number of options listed in the data tables [34] was 10 in 2003–2004 and increased to 14 in 2007–2008. For each distribution, the line shows the maximum-likelihood estimate for a lognormal function described by lognormal mean, g0, and standard deviation, σ, as follows: for 2003–2004, (g0, σ) = (5.82, 2.29) for women and (4.01, 1.85) for men; for 2007–2008, (g0, σ) = (9.03, 1.33) for women and (8.10, 1.74) for men. (Online version in colour.)
- Figure 4.
Representative timelines for the popularity of different STI screening options in the UK for each quarter of the years 2012 and 2013 [35]. The publicly available data are specifically the numbers of chlamydia tests for 15–24 year olds, grouped by testing-service type and by region (designated by ‘Upper Local Authority’ in terms of the divisions of the UK National Health Service). GUM, genito-urinary medicine; GP, general practitioner (local doctor); CSHS, contraception and sexual health services; TOP, termination of pregnancy. (a) Avon, Gloucester and Wiltshire, (b) Cumbria and Lancashire, (c) London and (d) North East. (Online version in colour.)
- Figure 5.
Diagram comparing nonlinear least-squares estimates (blue squares) against simulations (red dots) of the model defined by the electronic supplementary material, appendix equations A4 and A5. After [24]. The simulations (red dots) used two choices, and the axes are measured in units of the parameter values (from equation A5) for choice intensity, θ, on the vertical axis and social influence intensity, φ2, on the horizontal axis. (Online version in colour.)
