The relation between inter-individual differences in ISC and ISFC and individual differences in task performance. a, accuracy across subjects increased with days of practice. b, a linear regression model was fit to relate each communities ISC or ISFC in each subject to take performance. The model was fit to all subjects and all days except one subject on one day, and the model was then used to predict the left out subject’s performance on that day. The model was only able to relate ISFC, not ISC, to task performance.