Dr Gareth Roberts

A19 - Griffith Taylor Building
The University of Sydney

Telephone 86274259

Website Google Scholar Profile
Publons Profile
Bloomspace

Biographical details

Dr Roberts completed his PhD in Cognitive Neuroscience at the University of Western Australia under the supervision of Professor Mike Anderson. His thesis advisors were Professor Murray Mayberry and Professor Stephen Lewandowsky. During his doctoral dissertation Dr Roberts travelled to Switzerland, Spain, and the United Kingdom to present at conferences and spend time at laboratories related to his research area.

Dr Roberts was awarded his PhD in 2014, and returned to Perth to take up a postdoctoral fellow position at Murdoch University. During his fellowship, he was responsible for setting up the electrophysiology laboratory at Project KIDS (http://projectkids.com.au) - a long-running research program investigating the neurocognitive development of children, and coordinating the collection of large amounts of data from children between the ages of 7 and 11.

During this time, he Dr Roberts initiated several projects investigating the role of low-frequency EEG activity in complex goal-directed behavior, and developing new methods to analyse single EEG trial activity. He played a critical role in facilitating networking among researchers interested in neuroimaging in Perth by founding the West Australian Neuromethods Group that served as an avenue for researchers to meet and present neuroimaging data from a diverse range of disciplines.

In 2015, Dr Roberts accepted a postdoctoral fellow position at the University of Sydney under the supervision of Senior Lecturer Dr Micah Goldwater, Senior Lecturer Dr Evan Livesey, and Professor Michael Jacobson. Dr Roberts time is equally split between the School of Psychology and the School of Education.

Research interests

Dr Roberts’ research seeks to better understand how we maintain attention on relevant information and filter out irrelevant but competing information. What are the cognitive mechanisms that support this ability? Is it a unitary process, largely reflected by performance on tests of fluid intelligence (the so-called 'g' or general intelligence factor), or is it more nuanced, with multiple coordinating processes supporting this amazing ability to control our attention?

Dr Roberts' interests are relatively broad but largely concern:

  • Individual differences in cognitive control and fluid intelligence
  • Theoretical perspectives on human consciousness and intelligence
  • Methodological advances and best practices for EEG data analysis
  • The role of brain oscillations in complex cognition (e.g., attention, reasoning, problem solving)
  • Developmental changes in frontal lobe functioning across the lifespan (both children and the elderly)
  • ADHD-symptomology and the effects of psychostimulants in improving goal-directed cognition

Teaching and supervision

Dr Roberts has taught and developed course materials for third-year undergraduate psychology statistics and research methods units at the University of Western Australia. Dr Roberts has also run programming and neuroimaging analysis workshops for postgraduates and academic researchers at both the University of Western Australia, Murdoch University, and the University of Sydney.

In addition, Dr Roberts has supervised several honours research projects. These projects have investigated:

  • The interaction between task complexity, arousal and motivation in cognitive control paradigms
  • The relationship between alpha oscillations and the detection of sub-threshold stimuli
  • The involvement of frontoparietal cortex in task preparation and failures of attention
  • The effects of Type 1 Diabetes and Preterm birth on cognitive ability and electrophysiological indices in childhood and young adulthood

Current projects

fMRI Projects:

Teasing apart the role of rostrolateral prefrontal cortex in matrix reasoning: How does chunking and search difficulty influence frontoparietal cortex involvement in complex problems? (2017-2018)

EEG Projects:

From concrete examples to abstract relations: An EEG study on how the rostrolateral prefrontal cortex integrates novel examples into relational categories (2016-2018)

fNIRS Projects:

Understanding the advandage of productive failure educational designs: Prefrontal cortex activation or activation of prior knowledge? An fNIRS Study (2018)

Neuromethods Group:

Dr Roberts founded the Neuromethods Research Group, along with Dr Nick McNair, which is a fortnightly meeting for researchers interested in neuroimaging methodologies.

Behavioural Testing (Online & In-Person)

Dr Roberts behavioural experiments use a combination of cognitive control paradigms, fluid intelligence tests, and unique experimentally-driven paradigms to probe the processes of cognitive control and better understand its cognitive and potential mechanisms.

Selected publications

Download citations: PDF RTF Endnote

Journals

  • Brydges, C., Ozolnieks, K., Roberts, G. (2018). Working Memory and Intraindividual Variability in Response Time Mediate Fluid Intelligence Deficits Associated With ADHD Symptomology. Journal of Attention Disorders. [More Information]
  • Jacobson, M., Markauskaite, L., Portolese, A., Kapur, M., Lai, P., Roberts, G. (2017). Designs for learning about climate change as a complex system. Learning and Instruction, 52, 1-14. [More Information]
  • Brydges, C., Ozolnieks, K., Roberts, G. (2017). Working memory � not processing speed � mediates fluid intelligence deficits associated with attention deficit/hyperactivity disorder symptoms. Journal of Neuropsychology, 11(3), 362-377. [More Information]
  • Albrecht, M., Roberts, G., Price, G., Lee, J., Iyyalol, R., Martin-Iverson, M. (2016). The Effects of Dexamphetamine on the Resting-State Electroencephalogram and Functional Connectivity. Human Brain Mapping, 37(2), 570-588. [More Information]
  • Roberts, G., Jones, T., Davis, E., Ly, T., Anderson, M. (2014). Building tasks from verbal instructions: An EEG study on practice trial exposure and task structure complexity during novel sequences of behavior. Cognitive, Affective and Behavioral Neuroscience, 14(4), 1356-1374. [More Information]
  • Roberts, G., Anderson, M. (2014). Task structure complexity and goal neglect in typically developing children. Journal of Experimental Child Psychology, 120(1), 59-72. [More Information]

Conferences

  • Roberts, G., Brydges, C., Reid, C., Anderson, M. (2016). Maturation of Neural Oscillations in the Anterior Cingulate Cortex during Response Conflict: An EEG Study using Measure Projection Analysis. Frontiers in Human Neuroscience, Switzerland: XII International Conference on Cognitive Neuroscience.
  • Almabruk, T., Iyer, K., Tan, T., Roberts, G., Anderson, M. (2015). An EEG coherence-based analysis approach for investigating response conflict processes in 7 and 9-year old children. 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS 2015), Piscataway: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Almabruk, T., Iyer, K., Tan, T., Roberts, G., Anderson, M. (2015). Investigating Response Conflict Processes in 7 and 9- Year Old Children: An EEG Study using Coherence. 2015 IEEE International Conference on Digital Signal Processing (DSP 2015), Piscataway: Institute of Electrical and Electronics Engineers (IEEE). [More Information]

2018

  • Brydges, C., Ozolnieks, K., Roberts, G. (2018). Working Memory and Intraindividual Variability in Response Time Mediate Fluid Intelligence Deficits Associated With ADHD Symptomology. Journal of Attention Disorders. [More Information]

2017

  • Jacobson, M., Markauskaite, L., Portolese, A., Kapur, M., Lai, P., Roberts, G. (2017). Designs for learning about climate change as a complex system. Learning and Instruction, 52, 1-14. [More Information]
  • Brydges, C., Ozolnieks, K., Roberts, G. (2017). Working memory � not processing speed � mediates fluid intelligence deficits associated with attention deficit/hyperactivity disorder symptoms. Journal of Neuropsychology, 11(3), 362-377. [More Information]

2016

  • Roberts, G., Brydges, C., Reid, C., Anderson, M. (2016). Maturation of Neural Oscillations in the Anterior Cingulate Cortex during Response Conflict: An EEG Study using Measure Projection Analysis. Frontiers in Human Neuroscience, Switzerland: XII International Conference on Cognitive Neuroscience.
  • Albrecht, M., Roberts, G., Price, G., Lee, J., Iyyalol, R., Martin-Iverson, M. (2016). The Effects of Dexamphetamine on the Resting-State Electroencephalogram and Functional Connectivity. Human Brain Mapping, 37(2), 570-588. [More Information]

2015

  • Almabruk, T., Iyer, K., Tan, T., Roberts, G., Anderson, M. (2015). An EEG coherence-based analysis approach for investigating response conflict processes in 7 and 9-year old children. 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS 2015), Piscataway: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Almabruk, T., Iyer, K., Tan, T., Roberts, G., Anderson, M. (2015). Investigating Response Conflict Processes in 7 and 9- Year Old Children: An EEG Study using Coherence. 2015 IEEE International Conference on Digital Signal Processing (DSP 2015), Piscataway: Institute of Electrical and Electronics Engineers (IEEE). [More Information]

2014

  • Roberts, G., Jones, T., Davis, E., Ly, T., Anderson, M. (2014). Building tasks from verbal instructions: An EEG study on practice trial exposure and task structure complexity during novel sequences of behavior. Cognitive, Affective and Behavioral Neuroscience, 14(4), 1356-1374. [More Information]
  • Roberts, G., Anderson, M. (2014). Task structure complexity and goal neglect in typically developing children. Journal of Experimental Child Psychology, 120(1), 59-72. [More Information]

To update your profile click here. For support on your academic profile contact .