Trying to understand the vagaries of the human mind in programmatic, particularly when the brain doing the diagnosing is somewhat damaged itself. An ischemic stroke is easily recognizable due to its effects, the areas of the brain staved of oxygen, however temporarily, losing their ability to function normally and control the muscles they generally direct. Some functions return to normality quickly, some are slow to recover, some fail to ever repair.
The brain has unique quality of reparation, and the time scale such action might involve. The mind’s healing ability is more reminiscent of the steady tortoise than the fitful hare.