I'm about to start up my first game in the Anima RPG and am trying to learn about all the different powers and abilities in the system. All of it is pretty straight forward, though I can't seem to wrap my head around the Effects table for the Psychic powers. From Medium on down its obvious that the entree on the right is the PSR check difficulty, but what happens on a result of routine or easy? Does the Invoker lose Fatigue points, or does the target of the power lose Fatigue Points? Any help would be appreciated.

Each Psychic Power has a minimum difficulty you have to archieve in order to enact the power. If you roll lower as the minimal needed result, your mind/body can't handle the strain and you get dizzy and tired.

So, if a psychic user get's a result which indicated a loss of fatigue points, he suffers this loss due to the stress. Keep in mind, that there are penalties if you are low on fatigue points.