Pharmacological manipulation of dopamine in humans can alter time perception, but the direction of the shift is not clearly established.

“There's a group in London who's I forget the PI's name um who uses that and uses manipulations in humans of dopamine dopamineergic drugs to look at time perception changes but these are whole you're like what did you perceive? >> Is there a simple statement that we can make like if we if you increase dopamine pharmacologically and then you does your perception of time shift to it moving faster or uh slower? >> No, there's no I'm not saying no to that. I'm saying that there's no clear there's no broomemide for that.”