Also note that the medical field selects hard for people who can memorize information, to the exclusion of people who can understand systems It's not impossibl

Also note that the medical field selects hard for people who can memorize information, to the exclusion of people who can understand systems It's not impossible for people who are good in memorization to also be good in understanding systems. Those people, in turn, are the ones doing this research. Although common, it's not quite so that only people with a pure medical background do neuroscience. All in all, having met quite some people in the field, the things you're hinting at never occurred to mee as an actual problem. My guess is because the people who actually have issues get weeded out very soon. Like: before even finishing their PhD. It's not an easy field.