DSM-5 Criteria for Major Depressive Disorder | Adapted Guidelines for Single-Tweet Analysis: Melancholy Group |
Depressed mood most of the day, nearly every day. | Tweet expresses sad, hopeless, or pessimistic sentiment. |
Markedly diminished interest or pleasure in all, or almost all, activities most of the day, nearly every day. | Tweet expresses lack of interest in activities. |
Significant weight loss when not dieting or weight gain, or decrease or increase in appetite nearly every day. | Cannot interpret in a tweet. |
A slowing down of thought and a reduction of physical movement (observable by others, not merely subjective feelings of restlessness or being slowed down). | Cannot interpret in a tweet. |
Fatigue or loss of energy nearly every day. | Tweet expresses fatigue. |
Feelings of worthlessness or excessive or inappropriate guilt nearly every day. | Tweet expresses worthless/guilty sentiment. |
Diminished ability to think or concentrate, or indecisiveness, nearly every day. | Tweet expresses diminished ability to think/concentrate or indecisive sentiments |
Recurrent thoughts of death, recurrent suicidal ideation without a specific plan, or a suicide attempt or a specific plan for committing suicide. | Tweet expresses suicidal intention or outlines a specific plan for committing suicide. |