Figure 2 (IMAGE) Institute for Basic Science Caption Perturbation of developmentally informed growth models. (a) A schematic illustrates the growth model based on thalamo-salience connectivity rules that change over the developmental age span. Four perturbation models were tested: perturbation applied to the 8-12 years age group, 12-16 years age group, 16-22 years age group, and all age groups, compared to a non-perturbation model. (b) The segregation indices (salience-external and salience-internal) were calculated for each growth model, with percentages indicating the difference compared to the no-perturbation model. (c) Cortical gradients extracted from the simulated affinity matrix of each growth model demonstrate the impact of these perturbations on brain connectivity development. Credit Institute for Basic Science Usage Restrictions Attribution Required License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.