I think it's supposed to be a real curse (in the game) because that might explain why his dad is (semi) anti-psychic. Maybe they got the curse for some sort of psychic fight or something and... uhh... yeah, I can't finish that thought exactly but you know what I mean right? They got the curse because they're psychic and that's why Raz's dad isn't a psychonaut even though he can go into minds and stuff?
"Remember, if it's anhydrous, that means it's crunchy." ~ Dr. Bukowski