Research output per year
Research output per year
Personal profile
Research Interests
My principal research interests include randomised controlled trials, neuroimaging in major mental health disorders, health service research and the study of essential fatty acids (EFAs) in mental illness, on which my Doctor of Medicine thesis was based. I have been an applicant (co-applicant or lead applicant) for research grants totaling 3.3 million to date,and have published175 peer reviewed articles, many in high impact international journals. I have recently completed a double-blind placebo controlled randomised trial on IV scopolamine in bipolar disorder with results of this trial due to be disseminated in the near future.
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):
Education/Academic qualification
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Accepting PhD Students
- Accepting PhD Students
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Dive into the research topics where Brian Hallahan is active. These topic labels come from the works of this person. Together they form a unique fingerprint.
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Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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Clinical features of patients who are admitted under different criteria of the Irish Mental Health Act 2001: A retrospective cohort study
O'Mahony, B. W., Aylward, P., Cevikel, P., Hallahan, B. & McDonald, C., 2025, (Accepted/In press) In: Irish Journal of Psychological Medicine.Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review
Open Access -
Investigating the relationship between toll-like receptor activity, low-grade inflammation and cognitive deficits in schizophrenia patients – A mediation analysis
Patlola, S. R., Holleran, L., Dauvermann, M. R., Rokita, K. I., Laighneach, A., Hallahan, B., McManus, R., Kenyon, M., McDonald, C., Morris, D., Kelly, J., Donohoe, G. & Mc Kernan, D., 22 Apr 2025, In: Brain Behav Immun. 128, p. 529 539 p.Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review
Open Access -
A comparison of rate and methods of probable suicide for 2 years pre and post the onset of the COVID-19 pandemic
Mannix, D., Holleran, L., Cevikel, P., McMorrow, C., Nerney, D., Phelan, S., McDonald, C. & Hallahan, B., 1 Sep 2024, In: Irish Journal of Psychological Medicine. 41, 3, p. 348-353 6 p.Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review
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A four-year longitudinal evaluation of the impact of the COVID-19 pandemic on patients with a range of mental health disorders
O'Mahony, B. W., Aylward, P., McLoughlin, J., McLoughlin, A. & Hallahan, B., 2024, (Accepted/In press) In: Irish Journal of Psychological Medicine.Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review
Open Access -
A two-year longitudinal evaluation of the impact of the COVID-19 pandemic on pre-existing mental health service attenders
O’Gorman, E., Rainford, A., Devaney, E., O’Mahony, B., McLoughlin, J. & Hallahan, B., 1 Sep 2024, In: Irish Journal of Psychological Medicine. 41, 3, p. 284-290 7 p.Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review
Open Access
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Cerena Miravalles
Hallahan, B. (Primary Supervisor)
2024Activity: Other › Current Postgraduates (Research) Supervised
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Postgradauate diploma in clinical teaching
Hallahan, B. (Participant)
2009 → …Activity: Other › Education
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Thesis Title: Lipids Essential Fatty Acids and Human Mental Health" Psychiatry
Hallahan, B. (Participant)
2005 → …Activity: Other › Education
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Thesis: Evaluation of diagnoses in a residential learning disability centre Masters of Medical Science
Hallahan, B. (Participant)
2004 → …Activity: Other › Education
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Diploma in Management in Medical Doctors
Hallahan, B. (Participant)
2003 → …Activity: Other › Education