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R.R. (Raj) Jagesar, PhD

Behapp project lead & developer
Profielfoto van R.R. (Raj) Jagesar, PhD
E-mail:
r.r.jagesar rug.nl
Research interests Publicaties Pers/media

Research interests

Behapp: Longitudinal monitoring of social behavior in real life
We aim to provide novel insights into normal social behaviors of individuals, and identify longitudinal deviations of social profiles that may predict risk for developing behavioral disorders. For these studies, the Behapp research platform will be used to study human daily social behavior (www.behapp.com).

Publicaties

Uncovering Social States in Healthy and Clinical Populations Using Digital Phenotyping and Hidden Markov Models: Observational Study

Leaning, I. E., Costanzo, A., Jagesar, R., Reus, L. M., Visser, P. J., Kas, M. J. H., Beckmann, C. F., Ruhé, H. G. & Marquand, A. F., 2025, In: Journal of Medical Internet Research. 27, 1, 20 blz., e64007.

Onderzoeksoutput: Article › › peer review

A new intervention for implementation of pharmacogenetics in psychiatry: A description of the PSY-PGx clinical study

Pelgrim, T. A. D., Philipsen, A., Young, A. H., Juruena, M., Jimenez, E., Vieta, E., Jukić, M., Van der Eycken, E., Heilbronner, U., Moldovan, R., Kas, M. J. H., Jagesar, R. R., Nöthen, M. M., Hoffmann, P., Shomron, N., Kilarski, L. L., van Amelsvoort, T., Campforts, B. & van Westrhenen, R., feb.-2024, In: Pharmaceuticals. 17, 2, 15 blz., 151.

Onderzoeksoutput: Article › › peer review

A template and tutorial for preregistering studies using passive smartphone measures

Langener, A. M., Siepe, B. S., Elsherif, M., Niemeijer, K., Andresen, P. K., Akre, S., Bringmann, L. F., Cohen, Z. D., Choukas, N. R., Drexl, K., Fassi, L., Green, J., Hoffmann, T., Jagesar, R. R., Kas, M. J. H., Kurten, S., Schoedel, R., Stulp, G., Turner, G. & Jacobson, N. C., dec.-2024, In: Behavior Research Methods. 56, 8, blz. 8289-8307 19 blz.

Onderzoeksoutput: Article › › peer review

It’s all about timing: Exploring different temporal resolutions for analyzing digital-phenotyping data

Langener, A. M., Stulp, G., Jacobson, N. C., Costanzo, A., Jagesar, R. R., Kas, M. J. & Bringmann, L. F., 1-jan.-2024, In: Advances in Methods and Practices in Psychological Science. 7, 1, 22 blz.

Onderzoeksoutput: Article › › peer review

Assessment of Social Behavior Using a Passive Monitoring App in Cognitively Normal and Cognitively Impaired Older Adults: Observational Study

Muurling, M., Reus, L. M., de Boer, C., Wessels, S. C., Jagesar, R. R., Vorstman, J. A. S., Kas, M. J. H. & Visser, P. J., 20-mei-2022, In: JMIR Aging. 5, 2, 13 blz., e33856.

Onderzoeksoutput: Article › › peer review

Digital phenotyping: Operation & execution

Jagesar, R., 2022, [Groningen]: University of Groningen. 143 blz.

Onderzoeksoutput

A study of novel exploratory tools, digital technologies, and central nervous system biomarkers to characterize unipolar depression

Sverdlov, O., Curcic, J., Hannesdottir, K., Gou, L., de Luca, V., Ambrosetti, F., Zhang, B., Praestgaard, J., Valejo, V., Dolman, A., Gomez-Mancilla, B., Biliouris, K., Deurinck, M., Cormack, F., Anderson, J. J., Bott, N. T., Peremen, Z., Issachar, G., Laufer, O. & Joachim, D.& 9 anderen, Jagesar, R. R., Jongs, N., Kas, M. J., Zhuparris, A., Zuiker, R., Recourt, K., Zuilhof, Z., Cha, J.-H. & Jacobs, G. E., 6-mei-2021, In: Frontiers in Psychiatry. 12, 12 blz., 640741.

Onderzoeksoutput: Article › › peer review

Digital phenotyping and the COVID-19 pandemic: Capturing behavioral change in patients with psychiatric disorders

Jagesar, R. R., Roozen, M. C., van der Heijden, I., Ikani, N., Tyborowska, A., Penninx, B. W. J. H., Ruhe, H. G., Sommer, I. E. C., Kas, M. J. & Vorstman, J. A. S., jan.-2021, In: European Neuropsychopharmacology. 42, blz. 115-120 6 blz.

Onderzoeksoutput: Article › › peer review

Requirements and operational guidelines for secure and sustainable digital phenotyping: Design and development study

Jagesar, R. R., Vorstman, J. A. & Kas, M. J., 7-apr.-2021, In: Journal of Medical Internet Research. 23, 4, e20996.

Onderzoeksoutput: Article › › peer review

Social behavior assessment in cognitively impaired older adults using a passive and remote smartphone application

Muurling, M., Reus, L. M., de Boer, C., Jagesar, R., Vorstman, J. A., Kas, M. J. H. & Visser, P. J., 1-dec.-2021, In: Alzheimer's & dementia : the journal of the Alzheimer's Association. 17, S11, 2 blz., e051698.

Onderzoeksoutput: Article › › peer review

Pers/media

BEHAPP: Capturing social behavior through a smartphone application

Kas, M. & Jagesar, R.

25/06/2021

Pers / media: Onderzoek ›

Don’t worry, BeHapp - How your mobile phone can help science

Kas, M., Jagesar, R. & Jongs, N.

30/05/2017

Pers / media: Onderzoek ›

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