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Twenty years of load theory—Where are we now, and where should we go next? (2016)
Journal Article
Murphy, G., Groeger, J. A., & Greene, C. M. (2016). Twenty years of load theory—Where are we now, and where should we go next?. Psychonomic bulletin & review, 23(5), 1316-1340. https://doi.org/10.3758/s13423-015-0982-5

Selective attention allows us to ignore what is task-irrelevant and focus on what is task-relevant. The cognitive and neural mechanisms that underlie this process are key topics of investigation in cognitive psychology. One of the more prominent theo... Read More about Twenty years of load theory—Where are we now, and where should we go next?.

Self-reported sleep duration and cognitive performance in older adults: A systematic review and meta-analysis (2016)
Journal Article
Lo, J. C., Groeger, J. A., Cheng, G. H., Dijk, D., & Chee, M. W. L. (2016). Self-reported sleep duration and cognitive performance in older adults: A systematic review and meta-analysis. Sleep medicine, 17, 87-98. https://doi.org/10.1016/j.sleep.2015.08.021

Sleep is important for optimal cognitive functioning across the lifespan. Among older adults (≥ 55 years), self-reported short and long sleep durations have been repeatedly, albeit inconsistently, reported to elevate the risk for poor cognitive funct... Read More about Self-reported sleep duration and cognitive performance in older adults: A systematic review and meta-analysis.

Identifying psychological and socio-economic factors affecting motorcycle helmet use (2015)
Journal Article
Haqverdi, M. Q., Seyedabrishami, S., & Groeger, J. A. (2015). Identifying psychological and socio-economic factors affecting motorcycle helmet use. Accident analysis and prevention, 85, 102-110. https://doi.org/10.1016/j.aap.2015.09.007

Sixty percent of motorcyclist fatalities in traffic accidents of Iran are due to head injuries, but helmet use is low, despite it being a legal requirement. This study used face-to-face interviews to investigate the factors associated with helmet use... Read More about Identifying psychological and socio-economic factors affecting motorcycle helmet use.

Analysis of heart rate variability amongst cyclists under perceived variations of risk exposure (2014)
Journal Article
Doorley, R., Pakrashi, V., Byrne, E., Comerford, S., Ghosh, B., & Groeger, J. A. (2015). Analysis of heart rate variability amongst cyclists under perceived variations of risk exposure. Transportation research. Part F, Traffic psychology and behaviour, 28, 40-54. https://doi.org/10.1016/j.trf.2014.11.004

Cycling as a mode of travel provides an opportunity for many people to increase their levels of regular physical activity and contribute to their mental and physical health. Heart rate is often used as a means of measuring the intensity and energy ex... Read More about Analysis of heart rate variability amongst cyclists under perceived variations of risk exposure.

Comparing the effects of nocturnal sleep and daytime napping on declarative memory consolidation (2014)
Journal Article
Lo, J. C., Dijk, D. J., & Groeger, J. A. (2014). Comparing the effects of nocturnal sleep and daytime napping on declarative memory consolidation. PLoS ONE, 9(9), Article e108100. https://doi.org/10.1371/journal.pone.0108100

Nocturnal sleep and daytime napping facilitate memory consolidation for semantically related and unrelated word pairs. We contrasted forgetting of both kinds of materials across a 12-hour interval involving either nocturnal sleep or daytime wakefulne... Read More about Comparing the effects of nocturnal sleep and daytime napping on declarative memory consolidation.