Shane Ehrhardt

PhD Student


Google Scholar


Prof. Paul Dux (primary)

Dr. Hannah Filmer

Prof. Jason Mattingley

Current research

Applying small electrical fields (low current and voltage) to the scalp can modulate and interact with neurophysiological processes that underly various aspects of behaviour and cognition. Our research focuses on optimizing the parameter space of such techniques to maximise their effect, as well as to identify and measure inter-individual differences that give rise to variation in the response to electrical stimulation in cognitive training paradigms. We do so by using quantitative techniques such as magnetic resonance spectroscopy and computational decision-making models.

Research interests

  • Transcranial direct current stimulation

  • Cognitive training

  • Individual differences


Filmer, H. L., Ehrhardt, S. E., Bollmann, S., Mattingley, J. B., & Dux, P. E. (2019). Accounting for individual differences in the response to tDCS with baseline levels of neurochemical excitability. Cortex, 115, 324–334.

Filmer, H. L., Ehrhardt, S. E., Shaw, T. B., Mattingley, J. B., & Dux, P. E. (2019). The efficacy of transcranial direct current stimulation to prefrontal areas is related to underlying cortical morphology. NeuroImage, 196(April), 41–48.

Filmer, H. L., Ballard, T., Ehrhardt, S. E., Bollmann, S., Shaw, T. B., Mattingley, J. B., & Dux, P. E. (2020). Dissociable effects of tDCS polarity on latent decision processes are associated with individual differences in neurochemical concentrations and cortical morphology. Neuropsychologia, 141(September 2019), 107433.

Ehrhardt, S. E., Filmer, H. L., Wards, Y., Mattingley, J. B., & Dux, P. E. (2021). The influence of tDCS intensity on decision-making training and transfer outcomes. Journal of Neurophysiology, 125(2), 385–397.