>>14147401lol no. There is not.
expectations are roughly equal to 'no change'.
If someone has trained and taken stimulants, their brain fitness and energy could be higher and they'd score a little higher on most tests, and a lot higher on the stuff they've been practicing.
The only way to significantly and permanently lower IQ with caffeine and modafanil would be giving yourself a stroke or something by overdosing and stressing the heart and underlying conditions
