I'd be curious to know if any other executive/mental function changed, something that may not have been measured before or after the treatment; not feeling depressed, self-reported, is not necessarily the same as having the same functionality as someone who's not depressed.
> not feeling depressed, self-reported, is not necessarily the same as having the same functionality as someone who's not depressed.
Sure, though one aspect of the depression scales is (self-reported) ability to go about daily activities, get normal sleep, etc-- not just "feeling down". That is, it's self-reported information on functionality, too.