People often change when they drink.
And now a study out of the University of Missouri-Columbia has put names and faces to the four personalities that emerge when we imbibe.
The study, which was published in academic journal Addiction Research and Theory, asked 364 women and men to fill out a personality test in two ways: once considering themselves normal, and again as they are when they're drunk.
Results from the test helped researchers evaluate participants for personality factors including Extroversion, Agreeableness, Conscientiousness, Intellect and Emotional Stability while drinking.
These factors helped the researchers group drunk personalities into the following four categories:
(Ernest Hemingway, as played by Corey Stoll in the 2011 film "Midnight in Paris.")
Hemingway was an author who once said he could "drink hells any amount of whiskey without getting drunk."
As such, "Hemingways" see very little decrease in either Intellect or Conscientiousness when drinking, according to this study. That means that, even when drinking, they were still considered reliable, and able to process complex ideas.
Four out of 10 people in this study fell among the Hemingways, The Daily Mail reported.
Mary Poppins is the friendly, imaginative, yet firm nanny who charmed the Banks children in P.L. Travers' classic book, and the Disney film adaptation that became a family favourite.
Drinkers in this category saw very high Agreeableness while both sober and drunk, and lower than average decreases in both Intellect and Conscientiousness while imbibing. Their extroversion also increased.
"Mary Poppins" personalities made up 15 per cent of participants in this study. Most were women, said The Telegraph.
Edward Hyde was the monstrous alter-ego of Dr. Henry Jekyll in Robert Louis Stevenson's novel "Strange Case of Dr. Jekyll and Mr. Hyde."
This personality became less agreeable, conscientious and intellectual while drinking, though it also recorded a small increase in extroversion than other types in the study.
This type, said The Telegraph, is most likely to be arrested due to drunken antics. It described 23 per cent of participants, the second-highest number of people in this study.
"The Nutty Professor" is the title of a pair of comedies starting Jerry Lewis and Eddie Murphy, about a nerdy, insecure prof who transforms into the confident Buddy Love when drinking a potion.
"Nutty Professor" types aren't particularly extroverted while sober, but that facet of their personalities jumps when they drink. Conscientiousness, however, goes in the opposite direction.
Among participants, 20 per cent showed results that put them in this group, and most were men, said The Telegraph.
Previous research into drunk personalities has shown that it exaggerates traits that already exist in a person, Dr. Joshua Gowin of the National Institute on Alcohol Abuse and Alcoholism told Shape last year.
"Like any drug, alcohol affects your behavior, but it doesn’t introduce behaviors that aren’t already present," he said.
Various factors can contribute to one's persona, such as environment, genes, gender and mental state. But one's sober personality also has a great deal to do with it, Gowin added.
"Normally, you would slow yourself down or realize that your actions or reactions aren't appropriate," he said. "But when you're drunk, that doesn't happen."
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