LIWC Research Series:
When people write about their deepest thoughts and feelings about an emotionally significant event, numerous benefits in many domains (e.g., health, achievement, and well-being) result. As one step in understanding how writing achieves these effects, we have developed a computer program that provides a “fingerprint” of the words people use in writing or in natural settings. Analyses of text samples indicate that particular patterns of word use predict health and also reflect personality styles.
Pennebaker, James W., and Anna Graybeal. “Patterns of Natural Language Use: Disclosure, Personality, and Social Integration.” Current Directions in Psychological Science, vol. 10, no. 3, [Association for Psychological Science, Sage Publications, Inc.], 2001, pp. 90–93, http://www.jstor.org/stable/20182707.