Ehm, well in a way, kinda?
Mindblock in a nutshell is when you start making mistakes in your reading and accidentally keep making the same reading mistakes over and over again. Basically you can prevent mindblock by being really consistent with your reading.
It also happens when your muscle memory is being off but usually this is easily fixed by the next play session in my experiences.
Reading in osu is quite focus dependent, so when you're studying for exams you lose focus to play osu because you're mind is tired. So in a way, i guess it does? You just need a little rest really