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Chronotype, Sleep Quality and Personality: A Journey Towards Better Mental and Physical Health (CHIME)

The first Big Project is being led by Dr Satyam Chauhan (satyam.chauhan@brunel.ac.uk), working under the supervision of Prof Veena Kumari (Director of Centre for Cognitive and Clinical Neuroscience (CCN), Brunel University of London. This project is supported by a steering group from the British Society for the Psychology of Individual Differences (BSPID) leadership committee.

Leaf Pattern Design

About the project

The main purpose of the project is to comprehensively investigate how, when, and in who chronotype, personality traits, and sleep quality interact to affect mental, physical, and cognitive health in people with or without a history of childhood trauma in large, diverse samples.  

Needs (for potential collaborators)

Gains (for potential collaborators)

Leaf Pattern Design

1

  • Collect N≥50 participants on a [378] item questionnaire (consisting of the psychometric measures listed in the attached). These measures will be packaged by the leads to pass along to you.

2

  • The study inclusion criteria will require all participants to be (i) aged between 18-75 years, (ii) fluent in English, and (iii) able to provide a written informed consent. The exclusion criteria will be current/previous diagnosis of any neuropsychiatric.

1

  • Authorships for study and data contributors (qualifying N≥50 per lab) as per CRediT (Contributor Roles Taxonomy).

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  • Opportunities to propose further investigations utilising the entire project data (to be made freely available upon request, subject to BSPID Big Project Steering Group approval) or adding further questions and measures for additional investigations.

3

  • Networking for developing common related projects and funding applications.

Clay pottery with table linens

Meet Our Team

Dr. Satyam Chauhan and Professor Veena Kumari are leading the CHIME Project in collaboration with BSPID. We are a team of 30+ researchers from 13 countries across Europe, Asia, and Oceania. 

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If you're interested in partaking in the project please click on the below link.

We are inviting people from the general population to participate in this study. You can participate if you are: (i) aged between 18-75 years, (ii) fluent in English, (iii) not have a history of any diagnosed mental disorders or drug abuse (any past or current use of non-prescribed drugs)

The study involves taking part in an online session, taking approx. 50-55 minutes. During this session, you will be asked about your personality, habits and experiences, sleep, general mental and physical health, childhood experiences, as well as basic demographic information. Please be assured that you are free to not answer any of the questions that you do not wish to answer.

 Dr Satyam Chauhan

Dr Satyam Chauhan is an early career researcher who completed his PhD in Cognitive Neuroscience and Psychology from Brunel University of London, United Kingdom, in 2024. He is currently working under the supervision of Professor Veena Kumari at the Centre for Cognitive and Clinical Neuroscience, Brunel University of London. He is predominantly interested in sleep and psychiatric illnesses; however, he also has broad research interests, including circadian rhythmicity, childhood trauma, personality, and brain functioning. He is a reviewer for various psychology journals and has received various national awards, including the Rising Star Award (2025) at Brunel Alumni Awards, Early Career Researcher Award (2023) at the Affect, Personality, and Embodied Brain Conference, and was nominated for the EAPL Scientific Impact Award (2024, 2025) from European Association of Psychology and Law.  

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Professor Veena Kumari

Professor Veena Kumari obtained a PhD in Psychology from Banaras Hindu University, India in 1993 prior to joining the Institute of Psychiatry, London for post-doctoral research. She became a Beit Memorial Research Fellow in 1999, a Wellcome Senior Fellow in Basic Biomedical Science in 2002, and a Full Professor in 2006 at the Institute of Psychiatry, Psychology and Neuroscience (formerly known as the Institute of Psychiatry), King’s College London, UK. She left King’s College London in 2016 to join the Sovereign Health Group (USA) as the Chief Scientific Officer and returned to the UK in 2018 to join Brunel University London as Professor of Psychology and the Director of the Centre for Cognitive and Clinical Neuroscience (CCN).

Her research interests include the neurobiological effects of pharmacological and psychological treatments in psychosis, neurobiology of violence in mental illness, psychobiology of addiction, and personality and brain functioning. Prof Kumari has over 300 publications in reputed psychology, psychiatry and neuroscience journals and received various national and international awards for her research including the Young Investigator Award from the National Alliance of Research on Schizophrenia and Depression, USA (1999), research fellowship from BEIT Memorial Foundation (1999-2002), the BAP (British Association of Psychopharmacology) Clinical Psychopharmacology Prize (2002), Wellcome Senior Fellowship in Basic Biomedical Science (2002-2009), the prestigious Humboldt Research Award (2014), and most recently a Bonn International Fellowship (2020/21).

Professor Kumari has supervised a large number of post-graduate and doctoral students and served in editor or editorial board member roles for a number of psychology and psychiatry journals.

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Related work.

Chauhan, S., Norbury, R., Faßbender, K. C., Ettinger, U., & Kumari, V. (2023). Beyond sleep: A multidimensional model of chronotype. Neuroscience & Biobehavioral Reviews, 148, 105114. https://doi.org/10.1016/j.neubiorev.2023.105114

Chauhan, S., Pandey, R., Vakani, K., Norbury, R., Ettinger, U., & Kumari, V. (2024). Sleep quality mediates the association between chronotype and mental health in young Indian adults. Npj mental health research, 3(1), 31. https://doi.org/10.1038/s44184-024-00076-9

Chauhan, S., Faßbender, K., Pandey, R., Norbury, R., Ettinger, U., & Kumari, V. (2024). Sleep matters in chronotype and mental health association: Evidence from the UK and Germany. Brain Sciences, 14(10), 1020. https://doi.org/10.3390/brainsci14101020

Chauhan, S., Vanova, M., Tailor, U., Asad, M., Faßbender, K., Norbury, R., ... & Kumari, V. (2025). Chronotype and synchrony effects in human cognitive performance: A systematic review. Chronobiology International, 42(4), 463-499. https://doi.org/10.1080/07420528.2025.2490495

Chauhan, S., Ettinger, U., Fassbender, K., Norbury, R., & Kumari, V. (2025). Circadian rhythmicity in prepulse inhibition of the acoustic startle response: A study of chronotype and time-of-day effects in young healthy adults. Journal of Psychopharmacology, 02698811251337397. https://doi.org/10.1177/02698811251337397

Contact Us

Contact Person

Dr Satyam Chauhan

Contact

Contact Hours

Mon - Fri

9:00 am – 5:00 pm

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