Most of us are familiar with personality or psychological tests. While we often treat them as fun, they can sometimes be eye-opening. Among these fun and psychological tests, there are also some rather unusual experiments. One of them is the lemon test, first mentioned in 1967 by psychologist Hans Eysenck. He focused on personality, particularly introversion and extroversion. His "sour experiment" showed that a few drops of lemon juice are enough to differentiate between an extrovert and an introvert. How does the lemon test work?
Are You an Extrovert or an Introvert? A Simple Lemon Test Can Help
Extroverts and introverts are personality types that most people have heard of. It can be difficult to categorize oneself accurately. Extroversion is primarily associated with activity, assertiveness, sociability, outward reaction, sensation-seeking, and drawing energy from interactions with people. Introversion, on the other hand, focuses on internal emotions and thoughts, reserve, often leading to near-complete withdrawal, and shyness. Social interactions exhaust introverts and drain their energy.
What does this have to do with lemons? Hans Eysenck demonstrated a connection between personality types and their reaction to the sour taste of lemon. It turned out that introverts react more strongly to it. How do you conduct the lemon test? It's best to do it in a group of friends to compare results.
- Cut the lemon into quarters and remove the seeds.
- Using cotton wool or a cotton pad, dry your tongue by removing saliva. Weigh the pad and note the result.
- Squeeze a few drops of lemon juice onto your tongue, spread it in your mouth, and wait about 10 seconds.
- Swallow the juice, wait a few more seconds, and then use a dry cotton pad to collect all the saliva that has accumulated in your mouth.
- Weigh the pad again and note the result.
The Lemon Test Reveals Your Personality Type. How Does It Work?
According to Eysenck, introverts produce up to 50% more saliva in response to lemon juice than extroverts. After conducting the test, the cotton pad weighed after swallowing the lemon juice should be heavier for an introvert. For extroverts, the difference should be minimal. This is due to the Reticular Activating System (RAS), an area in the brain responsible for filtering information and reacting to stimuli, including food and social contact. Eysenck demonstrated this connection, publishing the findings with his wife, Sybil, in 1967. It turns out that an introvert requires minimal stimulus to trigger a significant reaction, whether it's interacting with people or tasting lemon juice. An extrovert, on the other hand, needs a stronger stimulus to elicit a reaction.
