The Role of Trash Talking in Professional Sports

There seems to be slightly conflicting studies on whether I am a priest again or not. A study by Karen McDermott who was looking into this from the University of Connecticut and that of all people playing Mario Kart. She had to pick a carefully delineated selection of insults which were cruel enough to sting. And the insult of players performed worse. They also rated themselves higher as having experienced anger and shame. But were they playing Rainbow Road? If you're playing Rainbow Road, you always experienced deep, deep shame and frustration and rage. So yeah, but does it make you play better or worse?