As far as I can tell, the standard measure of depression in rodents is something called the forced swim test. It's what it sounds like. This appears to be the p

As far as I can tell, the standard measure of depression in rodents is something called the forced swim test. It's what it sounds like. This appears to be the primary way all antidepressants are assessed. I'm no expert, but this measure would seem to have innumerable potential confounds. I guess it was chosen because it's fast to carry out.