Poverty of Speech (Alogia)
Poverty of Speech (traditionally referred to as Alogia) is a quantitative disturbance in speech and thought stream characterized by a marked reduction in the overall volume and spontaneous flow of spoken words.
Responses to questions are brief, terse, and unelaborated—often limited to single words or monosyllables (“yes,” “no,” “fine”). The patient rarely initiates conversation or offers unsolicited information.
Crucial board exam distinction: poverty of speech is a quantitative deficit (too few words spoken). Poverty of content of speech is a qualitative deficit (normal or excessive word count, but delivers almost no meaningful information or ideas).
Clinical Speech Example
Interviewer: “Can you tell me about how things have been going at home this week?”
Patient: “Fine.”
Interviewer: “What have you been doing during the day?”
Patient: “Nothing.”
Interviewer: “Have you spent time with your family or friends?”
Patient: “No.”
- Clinical Breakdown: The patient produces the bare minimum number of words required to acknowledge the questions. The answers are not hostile or resistant, but reflect a fundamental diminution in thought generation and spontaneous vocalization.
Differential Diagnosis & Clinical Significance
Poverty of speech reflects a deficit in spontaneous thought generation and motor-vocal execution. It is most commonly observed in:
- Schizophrenia Spectrum Disorders: A cardinal negative symptom under Criterion A5 (Alogia / Diminished Emotional Expression), indicative of chronic or deficit-syndrome schizophrenia.
- Major Depressive Disorder (Melancholic Features): Severe depressive psychomotor retardation can severely restrict spontaneous speech output.
- Severe Dementia & Neurocognitive Disorders: Frontal lobe damage or advanced Alzheimer’s disease leading to loss of initiation and linguistic fluency.
- Catatonia: Severe motor-vocal withdrawal resulting in near-mutism or complete poverty of speech.
How to Chart in a Mental Status Exam (MSE)
When documenting poverty of speech in an Electronic Health Record (EHR):
- “Patient demonstrated marked poverty of speech throughout the interview, offering brief, unelaborated, and primarily monosyllabic responses.”
- “Speech quantity was severely restricted (poverty of speech/alogia), with absent spontaneous vocalization or initiation.”
Diagnostic Classification Crosswalk
| Framework | Classification & Coding |
|---|---|
| DSM-5-TR | Core Negative Symptom of Schizophrenia (Criterion A5) |
| ICD-11 | Code 6A20 (Schizophrenia or other primary psychotic disorders, negative symptom domain) |
| MSE Category | Thought Stream / Speech Quantity (Flow, rate, and total output) |