Unveiling the Language of Personality Disorders: A Research Journey
The Power of Words: Unlocking Personality Insights
Can we decipher personality disorders through the words we use? Our research, conducted with colleagues, reveals a fascinating connection between language and personality, often more evident than expected.
In every form of communication, from text messages to online comments, words reveal deeper patterns of thinking, feeling, and relating to others. These patterns, while natural, can become rigid and disruptive when they cause emotional distress, a sense of self-doubt, or relationship challenges.
The Spectrum of Personality Functioning
Personality disorders are at the severe end of this spectrum, causing significant distress and impairment. Common disorders include narcissistic, antisocial, and borderline personality disorder. However, not everyone has a full-blown disorder; personality functioning exists on a spectrum.
Many people exhibit milder difficulties, such as mood fluctuations, negativity, rigid thinking, or darker traits like manipulation and callousness. These patterns often manifest in language before becoming more explicit in behavior.
Linguistic Clues: Extreme Examples
Linguists have analyzed the personal letters of Austrian serial killer Jack Unterweger, revealing unusually high self-focus and a flat emotional tone. Similarly, Dennis Rader's letters displayed grandiose and dominance-focused wording.
Psychologists have long known that certain linguistic habits reveal internal functioning. Distressed individuals use more self-focused language and negative emotion words, reflecting their internalization and negative affect.
Darker Traits and Hostile Language
Those with darker personality traits often use more hostile, negative, and disconnected language, including swear words and anger-related terms. They use fewer socially connected terms like "we."
Uncovering Patterns with Computational Text Analysis
Computational text analysis allows researchers to analyze subtle cues at scale and rapidly. Across four studies, we found clear evidence of personality dysfunction in everyday communication.
Study Findings: Written and Spoken Communication
In one study, we analyzed essays about close relationships and personality dysfunction levels. Those with greater dysfunction used urgent and self-focused language, negative emotion terms, and less intimate language.
In another project, we analyzed written essays and conversations from romantic couples with diagnosed personality disorders. They used more negative emotion words and a wider variety, indicating preoccupation with negative feelings.
Online Communication and Self-Beliefs
In an online study, we analyzed Reddit posts from individuals with self-identified personality disorders. Those engaging in self-harm used more negative and constricted language, with more negations and sadness/anger terms.
Self-Beliefs and Online Discussion
In an ongoing project, we examined self-beliefs expressed in online posts. People with personality disorders shared more negative, extreme, and disorder-focused self-beliefs, using emotional descriptors and referencing pain and trauma.
Why This Matters: Language as a Gentle Clue
Understanding these patterns isn't about diagnosing from texts but noticing shifts in language. Suddenly urgent, extreme, emotionally negative, absolutist, inward-focused, and socially detached language may signal struggle.
Recognizing patterns of hostility, negativity, and emotional/cognitive rigidity in everyday interactions can help spot early red flags, especially for dark personality styles. High self-references, anger words, and swear words, combined with a lack of social connection terms, are important patterns to look out for.
However, no single word or phrase reveals personality. The pattern over time, emotional tone, themes, and recurring habits matter. Subtle linguistic traces offer a window into someone's emotional world, identity, thinking patterns, and relationships before open discussion about difficulties.
Noticing these patterns can enhance understanding, support those in need, and navigate social lives with greater awareness, both online and offline.
