- Firnhaber, J., Malone, S.M., O’Hagan, A. D., O’Keeffe, S., McNamara, J., & O’Connor, S. (2004). ‘You don’t want to be seen to be struggling’; Identifying sociocultural barriers and facilitators for Irish farmers’ mental health help-seeking. Sociologia Ruralis, 1 23. DOI: https://doi.org/10.1111/soru.12469

- Marron, T., MacNamee, B., Dungan, N., & O’Hagan, A.D. (2024). Virtual Reality and Pilot Training: Existing Technologies, Challenges, and Opportunities. Journal of Aviation/Aerospace Education & Research, 33(1). DOI: https://doi.org/10.58940/2329-258X.1980

- O’Connor, S., O’Hagan, D., Malone, S.M., O’Shaughnessy, B.R., McNamara, J., & Firnhaber, J., & (2024). Sleep issues and burnout in Irish farmers: A cross sectional survey. Safety Science, 171, 106377.

- O’Connor, S., Malone, S.M., Firnhaber, J., O’Shaughnessy, B.R., & O’Hagan, D. (2023). Disordered alcohol and substance use in Irish farmers: A cross-sectional survey. The Journal of Rural Studies. https://doi.org/10.1111/jrh.12783

- O’Keeffe, S., Cheilleachair, N.N., O’Hagan, A. D., Campbell, M., & O’Connor, S. (2023). The Design and Implementation of a Novel Mental Health Literacy Educational Intervention Program in Gaelic Footballers. Journal of Athletic Training. doi: 10.4085/1062-6050 0463.22  

- O’Shaughnessy, B. R., O’Hagan, A. D., Burke, A., McNamara, J., O’Connor, S. (2022). The prevalence of farmer burnout: Systematic review and narrative synthesis. Journal of Rural Studies, 96, 282 292.   

- O’Hagan, A. D., Behan, S., Peers, C., Belton, SJ., & O’Connor N (2022). Do our movement skills impact our cognitive skills. Exploring the relationship between cognitive function and fundamental movement skills in primary school children. Journal of Science & Medicine in Sport, 25, 871–877. 

- Murphy, J., Sweeney, M. R., O'Hagan, A. D., & McGrane, B. (2022). Associations Between Self-Reported Sleep, Wellbeing and Physical Activity in Irish Adolescents. European Scientific Journal, 18 (8), 1. 

- O’Connor, S., Moran, K., Sheridan, A., Brady, S., Bruce, C., Beidler, E., O’Hagan, A.D., Whyte, E. (2021). Fear avoidance following injury and psychological readiness to return to sport in collegiate male and female Gaelic games players. Sports Health, 13(6), 532-539. 

- O’Hagan, A.D., Issartel, J., Wall, A., Dunne, F., Boylan, P., Herring, M., Campbell, M., & Warrington, G. (2019). “Flying on Empty” – Effects of sleep deprivation on pilot performance. Biological Rhythm Research, 1–22. 

- O’Hagan, A.D., Issartel, J., McGinley, E. & Warrington, G. (2018). A pilot study exploring the effects of sleep deprivation on analogue measures of pilot competencies. Aerospace Medicine & Human Performance, 89(6), 1-7. 

- O’Hagan, A.D., Issartel, J., Nevill, A. & Warrington, G. (2017). Flying into Depression-Pilot’s sleep & fatigue experiences can explain differences in perceived depression and anxiety associated with duty hours. Workplace Health & Safety, 65(3), 109-117. 

- O’Hagan, A.D., Issartel, J., Fletcher, R. & Warrington, G. (2016). Duty hours and incidents in flight among commercial airline pilots. International Journal of Occupational Safety and Ergonomics, 22(2), 165-172.

- May, G.C., Fitzpatrick, P.A., Cullen, S.J., Kelly, L., O’Hagan, A. & Warrington, G.D. (2011). An analysis of acute sleep deprivation on repeat cycling time trial performance. Medicine & Science in Sports & Exercise, 43(5), 160. 

Conference Publications/Abstracts:

- Shattuck, N.L., O’Hagan, A.D., Matsangas, P., & Hancock, M.L. (2020). “Waking Up is Hard to Do” – Effects of Reactive Countermeasures on Sleep Inertia. Proceedings of the Naval Research Working Group 2020.
 

- O’Hagan, A.D., Issartel, J., Wall, A., Dunne, F., Boylan, P., Herring, M., Campbell, M., & Warrington, G. (2018). “Flying on Empty” – The Effects of Sleep Loss on Mood and Task-Specific Competencies in Commercial Airline Pilots. Proceedings of Sleep and Circadian Rhythms from Mechanisms to Function 2018. 

- O’Hagan, A.D., Issartel, J., McGinley, E., & Warrington, G. (2018). Has Your Pilot Had Enough Sleep to Fly? The Effects of Sleep Deprivation on Mood, Fatigue and Competencies of Commercial Airline Pilots. Proceedings of SLEEP 2018. 

- O’Hagan, A.D., Issartel, J. & Warrington, G. (2016). Are our pilots “flying” into depression? Could sleep & fatigue help explain more...... Proceedings of the 2016 All-Ireland Postgraduate Conference in Sport Sciences & Physical Education. 

- O’Hagan, A.D., Issartel, J. Nevill, A. & Warrington, G. (2015). Pilots Sleep and Fatigue Experiences Help to Explain the Factors in Perceived Errors in Flight Associated with Duty Hours. Proceedings of the 2015 International Congress of Aviation & Space Medicine. 

- O’Hagan, A.D., Issartel, J. & Warrington, G. (2015). Relationship between Duty Hours, Sleep Disturbance and Feelings of Depression and/or Anxiety in Commercial Airline Pilots. Proceedings of the 2015 All-Ireland Postgraduate Conference in Sport Sciences & Physical Education.

- O’Hagan, A.D., Woodman, T. & Roberts, R. (2011). The Interaction Between Narcissism and Psychological Skills Upon Choking. Proceedings of the 2011 Psychology Postgraduate Affairs Group (PsyPAG).