Overview
Background
My research focuses on understanding the dynamics of decision-making, motivation, fatigue, and stress and how these processes affect our performance and mental health. I use computational and mathematical models to understand how these complex processes evolve and interact over time. I use this knowledge to help design work environments that promote happier, healthier, and more effective work. Practical applications of this work so far have included providing evidence-based recommendations regarding alternative work concepts such as the four-day work week, enhancing the capacity and safety of unmanned aerial systems operations, facilitating tactical decision-making in military contexts, providing tools to forecast fatigue in submarine operations, and improving climate change communication practices. My work has been published in premier journals such as Psychological Review, Psychological Science, Journal of Applied Psychology, The Leadership Quarterly, Annual Review of Organizational Psychology and Organizational Behavior, Organizational Research Methods, Journal of Neuroscience, and Global Environmental Change. My research has attracted more than $2 million in external funding, which has included over $1 million from the Australian Research Council and over $1 million of industry funding. The success of my research program has been recognised by an ARC DECRA Fellowship and Early Career Researcher Awards from the Australian Psychological Society, the Australasian Mathematical Psychology Society, and the Faculty of Health and Behavioural Sciences at UQ.
Availability
- Dr Timothy Ballard is:
- Available for supervision
- Media expert
Qualifications
- Bachelor (Honours) of Psychological Science, The University of Queensland
- Doctor of Philosophy, University of Western Australia
Works
Search Professor Timothy Ballard’s works on UQ eSpace
2024
Journal Article
The dynamics of competition and decision-making
Morgan, Andrew J., Neal, Andrew and Ballard, Timothy (2024). The dynamics of competition and decision-making. Psychonomic Bulletin and Review. doi: 10.3758/s13423-024-02523-2
2024
Journal Article
The impact of cognitive resource constraints on goal prioritization
Alister, Manikya, Herbert, Scott L., Sewell, David K., Neal, Andrew and Ballard, Timothy (2024). The impact of cognitive resource constraints on goal prioritization. Cognitive Psychology, 148 101618, 101618. doi: 10.1016/j.cogpsych.2023.101618
2024
Book Chapter
How to publish and review a computational model
Neal, Andrew, Ballard, Timothy and Palada, Hector (2024). How to publish and review a computational model. Computational Modeling For IndustrialOrganizational Psychologists. (pp. 297-319) New York, NY United States: Routledge. doi: 10.4324/9781003388852-13
2024
Journal Article
Using mixture modeling to examine differences in perceptual decision-making as a function of the time and method of participant recruitment
Ballard, Timothy, Evans, Nathan J., Fisher, Gina and Sewell, David K. (2024). Using mixture modeling to examine differences in perceptual decision-making as a function of the time and method of participant recruitment. Behavior Research Methods, 56 (3), 2194-2212. doi: 10.3758/s13428-023-02142-0
2024
Book Chapter
Fitting computational models to data: a tutorial
Ballard, Timothy, Palada, Hector and Neal, Andrew (2024). Fitting computational models to data: a tutorial. Computational modeling for industrial-organizational psychologists. (pp. 255-296) edited by Jeffrey B. Vancouver, Mo Wang and Justin M. Weinhardt. New York, NY, United States: Taylor and Francis. doi: 10.4324/9781003388852-12
2024
Journal Article
The next generation of fatigue prediction models: evaluating current trends in biomathematical modelling
Wilson, Michael David, Strickland, Luke, Ballard, Timothy and Griffin, Mark A. (2024). The next generation of fatigue prediction models: evaluating current trends in biomathematical modelling. Theoretical Issues in Ergonomics Science, 25 (1), 21-43. doi: 10.1080/1463922x.2022.2144962
2023
Journal Article
Evaluation of Gender Disparity in Tactical Combat Casualty Care
Vaughan, Shanna R., Ballard, Timothy, Ward-Demo, Pamela, Vojta, Leslie, Ahmed, Anwar E. and Costello, Amy (2023). Evaluation of Gender Disparity in Tactical Combat Casualty Care. Military Medicine, 189 (9-10), 2114-2119. doi: 10.1093/milmed/usad455
2023
Journal Article
Individual differences in decision strategy relate to neurochemical excitability and cortical thickness
Filmer, Hannah L., Loughnan, Kathleen, Seeto, Jennifer X., Ballard, Timothy, Ehrhardt, Shane E., Shaw, Thomas, Wards, Yohan, Rideaux, Reuben, Leow, Li-Ann, Sewell, David and Dux, Paul E. (2023). Individual differences in decision strategy relate to neurochemical excitability and cortical thickness. The Journal of Neuroscience, 43 (42), 7006-7015. doi: 10.1523/jneurosci.1086-23.2023
2023
Journal Article
Dopamine alters the effect of brain stimulation on decision-making
Leow, Li-Ann, Marcos, Anjeli, Nielsen, Esteban, Sewell, David K, Ballard, Tim, Dux, Paul E. and Filmer, Hannah L. (2023). Dopamine alters the effect of brain stimulation on decision-making. The Journal of Neuroscience, 43 (41), 6909-6919. doi: 10.1523/jneurosci.1140-23.2023
2023
Conference Publication
A methodology for evaluating the safety and effectiveness of alternative crewing arrangements for next-generation Remotely Piloted Aircraft Systems
Neal, Andrew, Marshall, Kayler, Sanderson, Penelope, Ballard, Timothy, Palada, Hector, Boag-Hodgson, Christine, Duffy, Donna and Perez, Tristan (2023). A methodology for evaluating the safety and effectiveness of alternative crewing arrangements for next-generation Remotely Piloted Aircraft Systems. IEEE/AIAA 42nd Digital Avionics Systems Conference (DASC), Barcelona, Spain, 1-5 October 2023. New York, NY, United States: IEEE. doi: 10.1109/dasc58513.2023.10311253
2023
Journal Article
Interruptions in healthcare: modeling dynamic processes and effects at a team level
Knight, Emma, Sanderson, Penelope, Neal, Andrew and Ballard, Timothy (2023). Interruptions in healthcare: modeling dynamic processes and effects at a team level. Applied Ergonomics, 112 104051, 1-11. doi: 10.1016/j.apergo.2023.104051
2023
Journal Article
Sustainable Tactical Combat Casualty Care Implementation in Ghana: A Model for Future Development
Polley, Catherine C., Adu-Gyamfi, Rossi, Mahama-Toure, Tawfik, Okpoti Konney, Fattal, Oti-Boateng, Emmanuel, Nsohlebna Nsoh, Lawrence and Ballard, Timothy (2023). Sustainable Tactical Combat Casualty Care Implementation in Ghana: A Model for Future Development. Military Medicine, 189 (5-6), e1221-e1225. doi: 10.1093/milmed/usad333
2023
Journal Article
A tutorial on Bayesian modeling of change across time, individuals, and groups
Knight, Emma, Neal, Andrew, Palada, Hector and Ballard, Timothy (2023). A tutorial on Bayesian modeling of change across time, individuals, and groups. Computational Brain and Behavior, 6 (4), 697-718. doi: 10.1007/s42113-023-00173-6
2023
Journal Article
A systematic investigation into the reliability of inter-temporal choice model parameters
Ballard, Timothy, Luckman, Ashley and Konstantinidis, Emmanouil (2023). A systematic investigation into the reliability of inter-temporal choice model parameters. Psychonomic Bulletin and Review, 30 (4), 1294-1322. doi: 10.3758/s13423-022-02241-7
2023
Journal Article
The causal role of the prefrontal and superior medial frontal cortices in the incidental manipulation of decision strategies
Filmer, Hannah L., Ballard, Timothy, Amarasekera, Koralalage Don Raveen, Sewell, David K. and Dux, Paul E. (2023). The causal role of the prefrontal and superior medial frontal cortices in the incidental manipulation of decision strategies. Neuropsychologia, 179 108466, 1-7. doi: 10.1016/j.neuropsychologia.2022.108466
2023
Journal Article
Using cognitive modeling to examine the effects of competition on strategy and effort in races and tournaments
Morgan, Andrew J., Neal, Andrew and Ballard, Timothy (2023). Using cognitive modeling to examine the effects of competition on strategy and effort in races and tournaments. Psychonomic Bulletin & Review, 30 (3), 1158-1169. doi: 10.3758/s13423-022-02213-x
2022
Other Outputs
Role of Prefrontal cortex (PFC) and Superior medial frontal cortex (SMFC) in implicit response strategies.
Filmer, Hannah and Ballard, Timothy (2022). Role of Prefrontal cortex (PFC) and Superior medial frontal cortex (SMFC) in implicit response strategies.. The University of Queensland. (Dataset) doi: 10.48610/0e92ea8
2022
Journal Article
tDCS augments decision-making efficiency in an intensity dependent manner: a training study
Ehrhardt, Shane E., Ballard, Timothy, Wards, Yohan, Mattingley, Jason B., Dux, Paul E. and Filmer, Hannah L. (2022). tDCS augments decision-making efficiency in an intensity dependent manner: a training study. Neuropsychologia, 176 108397, 108397. doi: 10.1016/j.neuropsychologia.2022.108397
2022
Journal Article
Changes in affect during the pursuit of performance goals
Neal, Andrew, Gee, Phillip, Ballard, Timothy, Vancouver, Jeffrey B., Yeo, Gillian, Chandra, Vritika and Ambrose, Laura (2022). Changes in affect during the pursuit of performance goals. Emotion, 23 (5), 1472-1491. doi: 10.1037/emo0001164
2022
Conference Publication
Testing a computational model of interruptions between clinicians in a hospital ward
Knight, Emma, Sanderson, Penelope, Neal, Andrew and Ballard, Timothy (2022). Testing a computational model of interruptions between clinicians in a hospital ward. Human Factors and Ergonomics Society Annual Meeting, Atlanta, GA, United States, 14-15 October 2022. London, United Kingdom: Sage Publications. doi: 10.1177/1071181322661288
Funding
Current funding
Supervision
Availability
- Dr Timothy Ballard is:
- Available for supervision
Before you email them, read our advice on how to contact a supervisor.
Available projects
Supervision history
Current supervision
-
Doctor Philosophy
A data-driven approach to reorganising the workweek: examining the relationship between work hours and mental health over time
Principal Advisor
-
Doctor Philosophy
Prioritising goals in dynamic and contested environments: multi-tasking and the MGPM* under conditions of friction
Associate Advisor
Other advisors: Professor Andrew Neal
-
Doctor Philosophy
Multiple Decision Makers in the Pursuit of Multiple Goals
Associate Advisor
Other advisors: Professor Andrew Neal
-
Doctor Philosophy
Exploring the effect of stimulus variability and noise on confidence judgments
Associate Advisor
Other advisors: Dr Hannah Filmer, Professor Paul Dux
-
Doctor Philosophy
Validating a computational model for designing work roles for crew operating unmanned aircraft.
Associate Advisor
Other advisors: Professor Penelope Sanderson, Professor Andrew Neal
-
Doctor Philosophy
The Dynamics of Conflicting Processing: A Model-based Approach to Simon and Flanker Tasks
Associate Advisor
Other advisors: Dr David Sewell
-
Doctor Philosophy
Enhancing Human-Automation Collaboration in Production Systems: Evaluating Cognitive & Physical Impacts for Future Work Design
Associate Advisor
Other advisors: Professor Andrew Neal
-
Doctor Philosophy
Design of work roles for crew operating remotely piloted aircraft
Associate Advisor
Other advisors: Professor Penelope Sanderson, Professor Andrew Neal
Completed supervision
-
2024
Doctor Philosophy
Interruptions in Healthcare: Developing and Testing a Computational Model of Interruption Processes and Effects at a Team Level
Principal Advisor
Other advisors: Professor Penelope Sanderson
-
2023
Doctor Philosophy
The Dynamics of Decision Making During Competitive Goal Pursuit
Principal Advisor
Other advisors: Professor Andrew Neal
-
2024
Doctor Philosophy
Self-cognitive Advantages and their Underlying Decisional and Attentional Mechanisms
Associate Advisor
Other advisors: Dr David Sewell, Associate Professor Ada Kritikos
-
2023
Doctor Philosophy
Combining brain stimulation and training to enhance cognition
Associate Advisor
Other advisors: Professor Jason Mattingley, Dr Hannah Filmer, Professor Paul Dux
Media
Enquiries
Contact Dr Timothy Ballard directly for media enquiries about:
- Climate change communication
- Goal prioritisation
- Multitasking
Need help?
For help with finding experts, story ideas and media enquiries, contact our Media team: