The underlying science

Sigmind’s technology is backed by more than 7 years of multi-disciplinary research among top-notch academic and clinical institutions in Latin America, the United States and Europe, and has been published in the highest ranked peer-reviewed journals.

Selected publications


August 2015

Automated analysis of free speech predicts psychosis onset in high-risk youths

Our result shows that we can predict which subjects will develop schizophrenia and which will not with unprecedented levels of accuracy

npj schizophrenia

January 2018

Prediction of psychosis across protocols and risk cohorts using automated language analysis

In a further step, we tested our model with two new cohorts of patients and the result was equally impressive, proving the robustness of our approach

World Psychiatry

April 2014

A Window into the Intoxicated Mind? Speech as an Index of Psychoactive Drug Effects

Throughout our research we tested our technology for different purposes. In this case, we were able to effectively identify whether a person was under the effect of a psychoactive drug.

Neuropsychopharmacology

Extended Publications List

  • Mota NB, Sigman M, Cecchi G, Copelli M, Ribeiro S. The maturation of speech structure in psychosis is resistant to formal education. npj Schizophrenia. 2018 Dec 7;4(1):25. (link)

  • Corcoran CM, Carrillo F, Fernández‐Slezak D, Bedi G, Klim C, Javitt DC, Bearden CE, Cecchi GA. Prediction of psychosis across protocols and risk cohorts using automated language analysis. World Psychiatry. 2018 Feb;17(1):67-75 (link)

  • Mota NB, Carrillo F, Slezak DF, Copelli M, Ribeiro S. Characterization of the relationship between semantic and structural language features in psychiatric diagnosis. In2016 50th Asilomar Conference on Signals, Systems and Computers 2016 Nov 6 (pp. 836-838). IEEE. (link)

  • García AM, Carrillo F, Orozco-Arroyave JR, Trujillo N, Bonilla JF, Fittipaldi S, Adolfi F, Nöth E, Sigman M, Slezak DF, Ibáñez A. How language flows when movements don’t: an automated analysis of spontaneous discourse in Parkinson’s disease. Brain and language. 2016 Nov 1;162:19-28. (link)

  • Bedi G, Carrillo F, Cecchi GA, Slezak DF, Sigman M, Mota NB, Ribeiro S, Javitt DC, Copelli M, Corcoran CM. Automated analysis of free speech predicts psychosis onset in high-risk youths. npj Schizophrenia. 2015 Aug 26;1:15030. (link)

  • Bedi G, Cecchi GA, Slezak DF, Carrillo F, Sigman M, De Wit H. A window into the intoxicated mind? Speech as an index of psychoactive drug effects. Neuropsychopharmacology. 2014 Sep;39(10):2340. (link)