Timothy Matthews

Dr Timothy Matthews PhD

Lecturer in Psychology

Dr. Timothy Matthews joined Greenwich in February 2022 as a lecturer in psychology. He completed his PhD at King’s College London in 2017, having developed a programme of research into loneliness in young people. In 2019, he was awarded a British Academy Postdoctoral Fellowship to continue his work in this area. He currently teaches modules on research methods and child and adolescent psychology. He also supervises PhD students investigating childhood social isolation and mental health, and loneliness in the workplace.

Responsibilities within the university

  • Module co-lead, Psychological Research Methods
  • Module lead, Clinical Child & Adolescent Psychology
  • Psychology link tutor for Criminology and Sociology

Research / Scholarly interests

Tim’s research focuses on loneliness and its impacts on health across the lifespan, with a particular focus on adolescence and emerging adulthood. His work integrates longitudinal, epidemiological and behavioural genetic methods to study the implications of loneliness for mental health, employment, technology use, sleep, inflammation and other markers of health and functioning. He is particularly interested in the mechanisms through which loneliness can develop from a temporary experience to a chronic problem that persists for months or years. Most recently, he is interested in researching how novel technology can be leveraged to advance ways of understanding, measuring and combatting loneliness.

Recent publications


Bryan, Bridget T. , Thompson, Katherine N., Goldman-Mellor, Sidra, Moffitt, Terrie E. , Odgers, Candice L. , So, Sincere Long Shin , Rahman, Momtahena Uddin , Wertz, Jasmin , Matthews, Timothy , Arseneault, Louise (2024), The socioeconomic consequences of loneliness: evidence from a nationally representative longitudinal study of young adults. Elsevier. In: , , , . Elsevier, Social Science and Medicine, 345: 116697 . pp. 1-9 ISSN: 0277-9536 (Print), 1873-5347 (Online) (doi: https://doi.org/10.1016/j.socscimed.2024.116697) NB Item availability restricted.

Bryan, Bridget T , Andrews, Georgia, Thompson, Katherine N, Qualter, Pamela , Matthews, Timothy , Arseneault, Louise (2023), Loneliness in the workplace: a mixed-method systematic review and meta-analysis. Oxford University Press. In: , , , . Oxford University Press, Occupational Medicine, 73 (9) . pp. 557-567 ISSN: 0962-7480 (Print), 1471-8405 (Online) (doi: https://doi.org/10.1093/occmed/kqad138).

Matthews, Timothy , Rasmussen, Line J H, Ambler, Antony, Danese, Andrea , Eugen-Olsen, Jasper , Fancourt, Daisy , Fisher, Helen L , Iversen, Kasper Karmark , Schultz, Martin , Sugden, Karen (2023), Social isolation, loneliness, and inflammation: a multi-cohort investigation in early and mid-adulthood. Elsevier. In: , , , . Elsevier, Brain, Behaviour, and Immunity ISSN: 1090-2139 (Print), 0889-1591 (Online) (doi: https://doi.org/10.1016/j.bbi.2023.11.022).

Lay-Ree, Roy , Hariri, Ahmad R, Knodt, Annchen R, Barrett-Young, Ashleigh , Matthews, Timothy , Milne, Barry J (2023), Social isolation from childhood to mid-adulthood: is there an association with older brain age?. Cambridge University Press. In: , , , . Cambridge University Press, Psychological Medicine . pp. 1-9 ISSN: 0033-2917 (Print), 1469-8978 (Online) (doi: https://doi.org/10.1017/s0033291723001964).

Madrid-Valero, Juan J , Matthews, Timothy, Barclay, Nicola L, Odgers, Candice L , Moffitt, Terrie E , Caspi, Avshalom , Arseneault, Louise , Gregory, Alice M (2023), Problematic technology use and sleep quality in young adulthood: novel insights from a nationally representative twin study. Oxford University Press. In: , , , . Oxford University Press, Sleep, 46: zsad038 (6) . pp. 1-9 ISSN: 0161-8105 (Print), 1550-9109 (Online) (doi: https://doi.org/10.1093/sleep/zsad038).

Lay-Yee, Roy , Matthews, Timothy, Moffitt, Terrie, Poulton, Richie , Caspi, Avshalom , Milne, Barry (2022), Are trajectories of social isolation from childhood to mid-adulthood associated with adult depression or suicide outcomes. Springer Nature. In: , , , . Springer Nature, Social Psychiatry and Psychiatric Epidemiology, 58 (3) . pp. 373-382 ISSN: 0933-7954 (Print), 1433-9285 (Online) (doi: https://doi.org/10.1007/s00127-022-02389-6).

Thompson, Katherine N. , Odgers, Candice L., Bryan, Bridget T., Danese, Andrea , Milne, Barry J. , Strange, Lily , Matthews, Timothy , Arseneault, Louise (2022), Trajectories of childhood social isolation in a nationally representative cohort: associations with antecedents and early adulthood outcomes. Wiley Open Access. In: , , , . Wiley Open Access, JCPP Advances, 2: e12073 (2) . pp. 1-10 2692-9384 (Online) (doi: https://doi.org/10.1002/jcv2.12073).

Thompson, Katie N. , Agnew-Blais, Jessica C., Allegrini, Andrea G., Bryan, Bridget T. , Danese, Andrea , Odgers, Candice L. , Matthews, Timothy , Arseneault, Louise (2022), Do children with attention-deficit/hyperactivity disorder symptoms become socially isolated? Longitudinal within-person associations in a nationally representative cohort. Elsevier. In: , , , . Elsevier, JAACAP Open ISSN: 2949-7329 (Print), (doi: https://doi.org/10.1016/j.jaacop.2023.02.001).

Matthews, Timothy , Qualter, Pamela, Bryan, Bridget T., Caspi, Avshalom , Danese, Andrea , Moffitt, Terrie E. , Odgers, Candice L. , Strange, Lily , Arseneault, Louise (2022), The developmental course of loneliness in adolescence: immplications for mental health, educational attainment, and psychosocial functioning. Cambridge University Press. In: , , , . Cambridge University Press, Development and Psychopathology, 35 (2) . pp. 537-546 ISSN: 0954-5794 (Print), 1469-2198 (Online) (doi: https://doi.org/10.1017/S0954579421001632).

Matthews, Timothy , Bryan, Bridget T., Danese, Andrea, Meehan, Alan J. , Poulton, Richie , Arseneault, Louise (2022), Using a loneliness measure to screen for risk of mental health problems: a replication in two nationally representative cohorts. MDPI. In: , , , . MDPI, International Journal of Environmental Research and Public Health, 19: 1641 (3) . pp. 1-13 ISSN: 1661-7827 (Print), 1660-4601 (Online) (doi: https://doi.org/10.3390/ijerph19031641).

Lay-Yee, Roy , Matthews, Timothy, Moffitt, Terrie, Poulton, Richie , Caspi, Avshalom , Milne, Barry (2021), Do socially isolated children become socially isolated adults?. Elsevier. In: , , , . Elsevier, Advances in Life Course Research, 50: 100419 ISSN: 1040-2608 (Print), (doi: https://doi.org/10.1016/j.alcr.2021.100419).

Ganesan, Keertana , Shakoor, Sania, Wertz, Jasmin, Agnew-Blais, Jessica , Bowes, Lucy , Jaffe, Sara R. , Matthews, Timothy , Arseneault, Louise (2021), Bullying behaviours and other conduct problems: Longitudinal investigation of their independent associations with risk factors and later outcomes. Springer. In: , , , . Springer, Social Psychiatry and Psychiatric Epidemiology, 56 ISSN: 0933-7954 (Print), (doi: ).

Baldwin, Jessie R. , Caspi, Avshalom, Meehan, Alan J., Ambler, Antony , Arseneault, Louise , Fisher, Helen L. , Harrington, HonaLee , Matthews, Timothy , Odgers, Candice L. , Poulton, Richie (2021), Population vs Individual Prediction of Poor Health From Results of Adverse Childhood Experiences Screening. In: , , , . , JAMA Pediatrics, 175 (4) . pp. 385-393 2168-6211 (Online) (doi: https://doi.org/10.1001/jamapediatrics.2020.5602).

Matthews, Timothy , Fisher, Helen L., Bryan, Bridget T., Danese, Andrea , Moffitt, Terrie E. , Qualter, Pamela , Verity, Lily , Arseneault, Louise (2021), This is what loneliness looks like: A mixed-methods study of loneliness in adolescence and young adulthood. SAGE Publications. In: , , , . SAGE Publications, International Journal of Behavioral Development, 46 (1) . pp. 18-27 ISSN: 0165-0254 (Print), (doi: https://doi.org/10.1177/0165025420979357).

Matthews, Timothy , Caspi, Avshalom, Danese, Andrea, Fisher, Helen L. , Moffitt, Terrie E. , Arseneault, Louise (2020), A longitudinal twin study of victimization and loneliness from childhood to young adulthood. Cambridge University Press. In: , , , . Cambridge University Press, Development and Psychopathology, 34 (1) . pp. 367-377 ISSN: 0954-5794 (Print), 1469-2198 (Online) (doi: https://doi.org/10.1017/S0954579420001005).