A research team at the University of Waterloo has done extensive studies of the psychology of gambling including the manipulation of music and sound effects to create the sensation that a user won even though they actually lost their money on the spin.
“DraftKings, sportsbooks target statehouse races as Mass. and others propose stricter betting rules” | WBUR
By Patrick Madden DraftKings, sportsbooks target statehouse races as Mass. and others propose stricter betting rules _ WBUR News