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Experiments on real-life emotions challenge Ekman's model.
Sara Coppini1, Chiara Lucifora2,3, Carmelo M Vicario4
1Department of Philosophy and Communication, University of Bologna, Bologna, Italy.
Scientific Reports
|June 12, 2023
Summary
This study found low agreement rates when using Ekman's basic emotions model to analyze real-life emotions in text. Alexithymia levels also impacted emotion detection accuracy.
Area of Science:
- Psychology
- Linguistics
- Computational Social Science
Background:
- Ekman's basic emotions theory posits universal emotional expressions.
- Alternative models view emotions as social and linguistic constructs.
- The sufficiency of current emotion models for real-life complexity is questioned.
Purpose of the Study:
- To assess the adequacy of traditional emotion models in capturing daily life emotions from text.
- To determine human-subject agreement rates using Ekman's model on annotated and unannotated datasets.
- To investigate the influence of alexithymia on emotion detection and categorization.
Main Methods:
- A social inquiry involving 114 subjects analyzing textual emotional content.
- Calculation of human-subject agreement rates for Ekman's theory (Entity-Level Tweets Emotional Analysis).
- Assessment of agreement using Ekman's model on sentences not adhering to the model (The Dictionary of Obscure Sorrows).
- Correlation analysis between alexithymia levels and emotion categorization accuracy.
Main Results:
- Low within-subject agreement rates were observed for both datasets.
- Subjects showed low agreement with original annotations.
- Individuals with high alexithymia frequently used Ekman's model, particularly for negative emotions.
- Low alexithymia levels were associated with particularly low agreement rates.
Conclusions:
- Traditional emotion models, like Ekman's, may be insufficient for capturing the nuances of real-life emotions in textual contexts.
- Alexithymia significantly influences the ability to accurately detect and categorize emotions.
- Further research is needed to develop more robust models for understanding complex human emotions.