If you look at the paper you can see it was poorly reviewed/edited (eg "trainning day" in figure 1). Also, there is no mention of blinding so they probably ski

If you look at the paper you can see it was poorly reviewed/edited (eg "trainning day" in figure 1). Also, there is no mention of blinding so they probably skipped that (key) step. Nor do they show us plots to demonstrate that behavior correlated with the histology/etc. Finally, they assess memory using the water maze. There is no reason to think the effect of the drug was on memory vs anything else like hunger, anxiety, etc: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2663577/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2663577/