This is due to temporal discounting, where we perceive a desired result in the future as less valuable than one we could have now. Temporal discounting happens for everyone, which is why you might often hear suggestions to reward yourself for a successful week rather than a successful semester. But along with temporal discounting, those with ADHD also have shorter time horizons. A reward that will come next week isn’t going to be motivating in the same way because, to us, next week doesn’t even exist
