> All of the drugs also increased the number of times the participants moved items in and out of the knapsack. “Thus, if one measures motivation in terms of tim

> All of the drugs also increased the number of times the participants moved items in and out of the knapsack. “Thus, if one measures motivation in terms of time spent or number of items moved, drugs clearly enhanced motivation,” the team writes. However, on average, the drugs did not increase ‘effort quality’ or productivity, measured as the average gain in knapsack value per move. Productivity was lower in all three drug conditions, compared with placebo. This "measured as the average gain in knapsack value per move" is an unusually chosen metric. Why would it not simply be the best/total score in the allotted time. This preemptively punishes sustained effort which is one of the increased behaviors. I'd like to see this done again with a different problem, a different metric, or simply their raw data. Now that I think about it, all of these types of reports should include the raw data or GTFO. This one seems to provide some on the referenced https://www.science.org/doi/10.1126/sciadv.add4165 https://www.science.org/doi/10.1126/sciadv.add4165 > MATLAB code that generates the statistics and figures, along with underlying data, can be found in the notebook “figures.mlx” and “SOM.mlx” of the GitHub repository bmmlab/PECO (https://zenodo.org/badge/latestdoi/592775835 https://zenodo.org/badge/latestdoi/592775835).