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Speech clock AI tool links voice patterns to biological aging
An international research team, led by scientists from Trinity College Dublin, has developed an artificial intelligence tool known as a ‘speech clock’ to estimate biological age through voice analysis. Published in Science Advances, the study utilized data from 2,928 Spanish-speaking adults across Argentina, Chile, Colombia, Mexico, and Peru.
The AI model analyzes over 700 acoustic and linguistic features, including speech rate, pauses, pitch, vocabulary, and semantic precision. Researchers identified a ‘speech age gap’—the difference between a person’s estimated speech age and their actual chronological age. A positive gap, where a person sounds older than they are, was significantly linked to cognitive impairment, dementia (including Alzheimer’s and frontotemporal dementia), and biological aging markers such as higher p-tau217 protein levels in the blood.
While the tool shows promise as a low-cost, non-invasive biomarker for research into brain health and systemic biology, researchers emphasize it is not yet a definitive diagnostic tool for clinical use.
Entities
Agustín Ibáñez · Global Brain Health Institute · ReDLat · Science Advances · Trinity College Dublin
Claims
What the coverage asserts, and how many sources carry each claim.
- [● 12 SOURCES] A positive ‘speech age gap’—where estimated age exceeds chronological age—is linked to cognitive impairment and dementia. www.it-boltwise.de · www.diariodemallorca.es · de.euronews.com · www.20minutos.es · www.thebrighterside.news · +7 more
- [● 11 SOURCES] The study included participants with Alzheimer’s disease and frontotemporal dementia. www.diariodemallorca.es · vanguardia.com.mx · www.20minutos.es · www.thebrighterside.news · de.euronews.com · +6 more
- [● 11 SOURCES] The AI analyzes over 700 acoustic and linguistic features, including speech rate, pauses, tone, and vocabulary. www.diariodemallorca.es · www.20minutos.es · www.thebrighterside.news · de.euronews.com · diario.mx · +6 more
- [● 11 SOURCES] The study analyzed 2,928 Spanish-speaking adults from Argentina, Chile, Colombia, Mexico, and Peru. www.diariodemallorca.es · de.euronews.com · diario.mx · eldiariodechihuahua.mx · es.euronews.com · +6 more
- [DISPUTED] Researchers developed an AI tool called a ‘speech clock’ to estimate biological age from speech patterns. www.it-boltwise.de · www.diariodemallorca.es · de.euronews.com · diario.mx · eldiariodechihuahua.mx · +7 more
- [● 12 SOURCES] The research was published in the journal Science Advances. www.it-boltwise.de · www.diariodemallorca.es · diario.mx · eldiariodechihuahua.mx · es.euronews.com · +7 more
- [● 2 SOURCES] The study found that people with higher speech-age gaps had higher p-tau217 protein levels in their blood. www.gzt.com · www.karar.com