JMIR J Med Internet Res Journal of Medical Internet Research 1438-8871 JMIR Publications Toronto, Canada v27i1e87810 41439672 10.2196/87810 Corrigenda and Addenda Corrigenda and Addenda Correction: Uncovering Social States in Healthy and Clinical Populations Using Digital Phenotyping and Hidden Markov Models: Observational Study Leaning Imogen E MSc 1
Donders Institute for Brain, Cognition and Behaviour Radboud University Nijmegen Trigon Building Kapittelweg 29 Nijmegen, 6525 EN The Netherlands 31 24 361 42 44 imogen.leaning@donders.ru.nl
2 https://orcid.org/0000-0002-4264-6585 Costanzo Andrea PhD 3 https://orcid.org/0000-0002-7158-634X Jagesar Raj PhD 3 https://orcid.org/0000-0002-5320-3341 Reus Lianne M PhD 4 5 6 https://orcid.org/0000-0001-6936-242X Visser Pieter Jelle MD, PhD 4 7 8 https://orcid.org/0000-0001-8008-9727 Kas Martien J H Prof Dr 3 https://orcid.org/0000-0002-4471-8618 Beckmann Christian F Prof Dr 1 2 https://orcid.org/0000-0002-3373-3193 Ruhé Henricus G MD, PhD 1 9 https://orcid.org/0000-0001-6072-0358 Marquand Andre F Prof Dr 1 2 10 https://orcid.org/0000-0001-5903-203X Donders Institute for Brain, Cognition and Behaviour Radboud University Nijmegen Nijmegen The Netherlands Department for Medical Neuroscience Radboud University Medical Center Nijmegen Nijmegen The Netherlands Groningen Institute for Evolutionary Life Sciences University of Groningen Groningen The Netherlands Department of Neurology, Alzheimer Center Amsterdam Neuroscience Amsterdam UMC Amsterdam The Netherlands Amsterdam Neuroscience Neurodegeneration Amsterdam UMC Amsterdam The Netherlands Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior David Geffen School of Medicine University of California Los Angeles, CA United States Department of Psychiatry & Neuropsychology School for Mental Health and Neuroscience Maastricht University Maastricht The Netherlands Department of Neurobiology, Care Sciences and Society Division of Neurogeriatrics Karolinska Institutet Stockholm Sweden Department of Psychiatry Radboud University Medical Center Nijmegen Nijmegen The Netherlands Department of Neuroimaging Institute of Psychiatry, Psychology and Neuroscience King’s College London London United Kingdom Corresponding Author: Imogen E Leaning imogen.leaning@donders.ru.nl 2025 24 12 2025 27 e87810 14 11 2025 17 11 2025 ©Imogen E Leaning, Andrea Costanzo, Raj Jagesar, Lianne M Reus, Pieter Jelle Visser, Martien J H Kas, Christian F Beckmann, Henricus G Ruhé, Andre F Marquand. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 24.12.2025. 2025

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 https://www.jmir.org/2025/1/e64007

In “Uncovering Social States in Healthy and Clinical Populations Using Digital Phenotyping and Hidden Markov Models: Observational Study” [1] the authors noted one error.

The error pertains to the visualization of the transition probabilities in Figure 8, where a mistake in the calculation of these probabilities was made. This error did not impact any of the text in the paper as the interpretation of the figure remains the same, and the values were not used in any analysis. As the same code was used to visualize transition probabilities of alternative models in the supplementary materials, the transition probability figures in Multimedia Appendix 2 have also been corrected.

The correction will appear in the online version of the paper on the JMIR Publications website, together with the publication of this correction notice. Because this was made after submission to PubMed, PubMed Central, and other full-text repositories, the corrected article has also been resubmitted to those repositories.

The probability of transitioning into the socially active state from each state, for each hour in the day. 0: midnight; S1: state 1 (socially inactive state), S2: state 2 (socially active state).

Results from additional hidden Markov model (HMM) variations, including HMMs trained on the entire dataset and HMMs with 3-4 hidden states.

 Leaning Imogen E Costanzo Andrea Jagesar Raj Reus Lianne M Visser Pieter Jelle Kas Martien J H Beckmann Christian F Marquand Andre F Uncovering social states in healthy and clinical populations using digital phenotyping and hidden markov models: observational study J Med Internet Res 2025 04 28 27 e64007 10.2196/64007 40294408 v27i1e64007 PMC12070022