Interesting if that study checked the environment in each case. If you vent out at endless taxi drivers, real estate agents, shop salesmen or something like that, wouldn’t it only make you constantly angry?
Psychologists say that we have to express, not exactly vent out. Expressing emotions is telling others how you feel, so they could adjust their behavior or attitude accordingly. In 90% of cases, words about what you feel are enough.
“It confuses me when you leave papers on my table with no comments”
“I feel angry if my cup is not where I left it”
“I’m sad about you trying to fool me”
Saying that without usual “venting out” expression is more constructive. That’s how you feel. They usually don’t know until you tell them.
The key point is what you feel, not some random noun/adjective (it may be hard to detect and verbalize for first 50 times). Angry mode is a force that you use when people refuse to comply. But often they aren’t even aware of your issue (or unable to help you).
(This comment is very fragmentary and tangential, but I leave it at that.)