Fig. 6: Numerosity estimation (study 2).

General numerosity estimation performance for each tested numerosity in the a human numerosity estimation task and b object numerosity estimation task (study 2). Each dot indicates the individual human numerosity estimation task mean estimate at the corresponding tested numerosity. The dots with the bar on the right sides indicate the in-between subject mean at each presented numerosity. Note the general overestimation bias in human numerosity estimation task and object numerosity estimation task. The error bar represents 95% confidence interval. n = 118 patients with PD. Source data are provided as a Source Data file. PD Parkinson’s Disease.