Projects per year
Personal profile
Research interests
My research interests include using longitudinal datasets to investigate mental health, cognitive function and other psychological factors from childhood through to adulthood.
I currently work as a Research Associate on an international project investigating multi-informant (i.e, parent and teacher) perspectives of adaptive functioning, mental health and autistic traits in a cohort of autistic children.
I completed my PhD in the Addiction and Mental Health group, investigating cannabis use disorder in adolescents and young people, including identifying predictors of problematic cannabis use, as well as evaluating available treatments.
I use quantitative data analysis methods such as latent class analysis and mixed effects models, working primarily with R, STATA, and Mplus.
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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Collaborations and top research areas from the last five years
Projects
- 1 Not started
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FLF Reducing cannabis harms through evidence-based drug policy
Freeman, T. (PI), Hines, L. (CoI), Husbands, S. (CoI), Pryer, T. (CoI), Pudney, C. (CoI), Sunderland, P. (CoI), Ehrhardt, B. (Researcher) & Lees, R. (Researcher)
1/10/24 → 30/09/28
Project: Research council
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Persistent increased severity of cannabis use disorder symptoms in adolescents compared to adults: a one-year longitudinal study
Lees, R., Lawn, W., Petrilli, K., Brown, A., Trinci, K., Borissova, A., Ofori, S., Mokrysz, C., Curran, H. V., Hines, L. & Freeman, T., 13 May 2024, In: European Archives of Psychiatry and Clinical Neuroscience. 10 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Anhedonia, Apathy, Pleasure, and Effort-Based Decision-Making in Adult and Adolescent Cannabis Users and Controls
Skumlien, M., Mokrysz, C., Freeman, T. P., Valton, V., Wall, M. B., Bloomfield, M., Lees, R., Borissova, A., Petrilli, K., Giugliano, M., Clisu, D., Langley, C., Sahakian, B. J., Curran, H. V. & Lawn, W., 19 Jan 2023, In: International Journal of Neuropsychopharmacology. 26, 1, p. 9-19 11 p.Research output: Contribution to journal › Article › peer-review
Open Access9 Citations (SciVal) -
Associations between regular cannabis use and brain resting-state functional connectivity in adolescents and adults
Ertl, N., Lawn, W., Mokrysz, C., Freeman, T. P., Alnagger, N., Borissova, A., Fernandez-Vinson, N., Lees, R., Ofori, S., Petrilli, K., Trinci, K., Viding, E., Curran, H. V. & Wall, M. B., 30 Sept 2023, In: Journal of Psychopharmacology. 37, 9, p. 904-919 16 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile2 Citations (SciVal)166 Downloads (Pure) -
Effect of four-week cannabidiol treatment on cognitive function: secondary outcomes from a randomised clinical trial for the treatment of cannabis use disorder
Lees, R., Hines, L. A., Hindocha, C., Baio, G., Shaban, N. D. C., Stothart, G., Mofeez, A., Morgan, C. J. A., Curran, H. V. & Freeman, T. P., 28 Feb 2023, In: Psychopharmacology. 240, 2, p. 337-346 10 p.Research output: Contribution to journal › Article › peer-review
Open Access5 Citations (SciVal) -
Effects of cannabidiol on anandamide levels in individuals with cannabis use disorder: findings from a randomised clinical trial for the treatment of cannabis use disorder
Hua, D. Y. H., Hindocha, C., Baio, G., Lees, R., Shaban, N., Morgan, C. J., Mofeez, A., Curran, H. V. & Freeman, T. P., 21 Apr 2023, In: Translational Psychiatry. 13, 1, 131.Research output: Contribution to journal › Article › peer-review
Open Access4 Citations (SciVal)