| Author | Sentiment classification type |
| Plutchik | Angry, happy, sad, disgusted, fearful, approving, anticipating, surprised | Ekman, Friesen, and Ellsworth | Angry, happy, sad, disgusted, fearful, surprised | Frijda | Happy, concerned, surprised, expectant, sad | Gray | Angry, happy, fearful, anxious | Arnold | Angry, disgusted, brave, frustrated, anticipating, disappointed, fearful, hopeful, loving, sad | James | Angry, scared, sad, loving | Mower | Joy, pain | McDougall | Angry, happy, disgusted, afraid, conquered, guilty, tender, surprised | Panksepp | Anger, expectation, fear, panic | Izard | Anger, contempt, disgust, grief, fear, guilt, concern, shame, surprise | Tomkins | Angry, contemptuous, disgusted, sad, scared, happy, concerned, ashamed, surprised | Waston | Angry, scared, loving | Weiner and Graham | Happy, sad | Oatley and Jolnson-Laird | Angry, happy, sad, disgusted, anxious |
|
|