Analysis of spatial scale sizes

For each stimulus provided by each participant, we identified the latitude and longitude of the stimulus location, if it was a name which could be identified. 72% of stimuli locations were identified (65% for neighborhoods, 83% for cities, 72% for countries and 70% for continents). The pairwise distances between all items in each location and scale were calculated using the Haversine formula (to account for the earth’s globular shape), using a script provided by M Sohrabinia: https://www.mathworks.com/matlabcentral/fileexchange/38812-latlon-distance. A linear fit to the resulting logarithmic values shows a fit of r2 = 0.98, indicating that scale transitions reflect a logarithmic increase in environmental size.

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