With circular error scores, mean error had a higher Pearson correlation across color and orientation tasks than load cost in 115 selected ds008037 v1.0.1 adults

We compared mean recall error and load cost across color and orientation working memory tasks. The source was OpenNeuro ds008037 version 1.0.1. We selected 115 adults with at least 20 valid trials per load in both tasks. We used circular angle error and gave the two loads equal weight. Load cost was the error increase from two to four items. The Pearson correlation across tasks was 0.283 for mean error and 0.020 for load cost. The paired difference was 0.262. Its 95% person bootstrap interval was 0.063 to 0.459. The procedure assumes independent people. The rank and first-30-trial intervals included zero. Thus, the result was not equally clear under every planned check. Both tasks had positive average load costs. The orientation cost correlation between temporal halves was 0.047. The result applies to the selected cohort and recorded trials. It does not establish a common neural mechanism. The package contains fixed source data, provenance, a local plan, code, all scores, uncertainty draws, figures, and reproduction instructions. A separate calculation checked all source scores and 70,000 comparison bootstrap samples. A second full run produced identical result files.

visual working memory · circular error · individual differences · Pearson correlation · bootstrap · OpenNeuro