My research focuses upon the cognitive mechanisms implicated in learning and belief-updating. My basic science examines how "trial and error" lerning takes place, and the role of attention and beliefs in guiding learning. I am also interested in the cognitive mechanisms that bring about unsupported, idiosyncratic or erroneous beliefs (e.g. delusions, anomalous beliefs, superstitions). This research programme aligns with my primary clinical interest, which is in cognitive & behavioural therapies for psychosis (e.g. schizophrenia, bipolar, 1Ep).
Please see www.brainandcoglab.com for more detail.
BPsych (Hons I, UNSW)
MPsych (Clinical, Hons I, UNSW)
PhD (Psychology, UNSW)
Clinical Psychologist (PSY0001709681)
Indicative publications (see GoogleScholar for comprehensive list):
Psychosis & prediction error:
Griffiths, O., Langdon, R., Le Pelley, M. E. & Coltheart, M. (2014) Delusions and prediction error: re-examining the behavioural evidence for disrupted error signalling in delusion formation Cognitive Neuropsychiatry, 19 (5), 439-467.
Whitford, T. J., Jack, B. N., Pearson, D., Griffiths, O., Luque, D., Harris, A. W., ... & Le Pelley, M. E. (2017). Neurophysiological evidence of efference copies to inner speech. eLife, 6.
Morris, R., Griffiths, O., Le Pelley, M. E., & Weickert, T. W. (2012). Attention to irrelevant cues is related to positive symptoms in schizophrenia. Schizophrenia Bulletin, 39(3), 575-582.
Predictability shapes human learning:
Griffiths, O., Erlinger, M., Beesley, T., & Le Pelley, M. E. (in press). Outcome predictability biases cued search. Journal of Experimental Psychology: Learning, Memory, and Cognition.
Griffiths, O., & Thorwart, A. (2017). Effects of outcome predictability on human learning. Frontiers in Psychology, 8, 511.
Griffiths, O. Mitchell, C. J., Bethmont, A. & Lovibond, P. F. (2015) Outcome predictability biases learning. Journal of Experimental Psychology: Animal Learning and Cognition, 41 (1), 1.