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Professor Peter Halligan


Associate Investigator

Contact Details

Phone : +44 29 208 76911
email :
Homepage :

External Address

School of Psychology
Cardiff University, UK


My research involves attempts to understand how neuropsychological/psychiatric disturbances can be explained in terms of and inform pre-insult cognitive processing systems. While clinically useful, traditional neurological and psychiatric nosology offer little prospect of explaining the neuropsychological mechanisms without reference to normal psychological systems. Much of my research has involved a broad range of group and single case studies involving acquired and developmental conditions spanning neuropsychology and neuropsychiatry conditions using evidence from a variety of cognitive neuroscience methods.

Recent External Appointments

  • Chief Executive, The Learned Society of Wales. (2015 continuing)


  • The Ernest R. and Josephine R. Hilgard Award (2013), Halligan, P.W., & Oakley, D. For best theoretical paper at the 64th Annual Conference Society for Clinical and Experimental Hypnosis in Berkeley, California - "Hypnosis and cognitive neuroscience: Bridging the gap" (Cortex).

Media Engagement

Selected Publications


  • Hallett, M., Cloninger, C.R., Fahn, S., Halligan, P., Jankovic, J., Lang, A.E., & Voon, V. (Ed.). (2011). Psychogenic Movement Disorders and Other Conversion Disorders. Cambridge: Cambridge University Press.

Book Chapters

  • Connors, M.H., & Halligan, P.W. (2017). Belief and belief formation: Insights from delusions. In H. Angel, L. Oviedo, R.F. Paloutzian, A.L.C. Runehov, & R.J. Seitz (Eds.), Processes of Believing: The Acquisition, Maintenance, and Change in Creditions (pp. 153-165). Cham, Switzerland: Springer.
  • Bell, V., & Halligan, P.W. (2012). The neural basis of abnormal personal belief. In F. Krueger & J. Grafman (Eds.), The Neural Basis of Human Belief Systems. Hove: Psychology Press.
  • Halligan, P., & Bartolomeo, P. (2012). Visual neglect. In V. Ramachandran (Ed.), Encyclopedia of Human Behavior (2nd ed., pp. 652-664). Amsterdam: Elsevier.
  • Halligan, P.W. (2011). Psychogenic movement disorders: illness in search of disease? In M. Hallett, C.R. Cloninger, S. Fahn, P. Halligan, J. Jankovic, A.E. Lang & V. Voon (Eds.), Psychogenic Movement Disorders and Other Conversion Disorders. Cambridge: Cambridge University Press.


  • Bell, V., & Halligan, P. (2015). Schizotypy and impaired basic face recognition? Another non-confirmatory study. Early Intervention in Psychiatry, 9(6), 512-515. doi:10.1111/eip.12181
  • Connors, M.H., & Halligan, P.W. (2015). A cognitive account of belief: A tentative roadmap. Frontiers in Psychology, 5, 1-14. doi:10.3389/fpsyg.2014.01588
  • Walsh, E., Oakley, D.A., Halligan, P.W., Mehta, M.A., & Deeley, Q. (2015). The functional anatomy and connectivity of thought insertion and alien control of movement. Cortex, 64, 380-393. doi:10.1016/j.cortex.2014.09.012
  • Bass, C., & Halligan, P. (2014). Factitious disorders and malingering: Challenges for clinical assessment and management. The Lancet, 383(9926), 1422-1432. doi:10.1016/S0140-6736(13)62186-8
  • Connors, M., Barnier, A.J., Coltheart, M., Langdon, R., Cox, R.E., Rivolta, D., & Halligan, P.W. (2014). Using hypnosis to disrupt face processing: Mirrored-self misidentification delusion and different visual media. Frontiers in Human Neuroscience, 8, 361. doi:10.3389/fnhum.2014.00361
  • Connors, M.H., Halligan, P.W., Barnier, A.J., Langdon, R., Cox, R.E., Elliot, J., Polito, V., & Coltheart, M. (2014). Hypnotic analogues of delusions: The role of delusion proneness and schizotypy. Personality and Individual Differences, 57, 48-53. doi:10.1016/j.paid.2013.09.012
  • Deeley, Q., Oakley, D.A., Walsh, E., Bell, V., Mehta, M.A., & Halligan, P.W. (2014). Modelling psychiatric and cultural possession phenomena with suggestion and fMRI. Cortex, 53, 107-119. doi:10.1016/j.cortex.2014.01.004
  • Halligan, P.W., & Oakley, D.A. (2014). Hypnosis and beyond: Exploring the broader domain of suggestion. Psychology of Consciousness: Theory, Research and Practice, 1(2), 105-122. doi:10.1037/cns0000019
  • Walsh, E., Mehta, M.A., Oakley, D.A., Guilmette, D.N., Gabay, A., Halligan, P.W., & Deeley, Q. (2014). Using suggestion to model different types of automatic writing. Consciousness & Cognition, 26, 24-36. doi:10.1016/j.concog.2014.02.008
  • David, A.S., & Halligan, P. (2013). Making an impact [Editorial]. Cognitive Neuropsychiatry, 17(5), 367-370. doi:10.1080/13546805.2012.715800
  • Deeley, Q., Oakley, D.A., Toone, B., Bell, V., Walsh, E., Marquand, A.F., Giampietro, V., Brammer, M.J., Williams, S., Mehta, M., & Halligan, P.W. (2013). The functional anatomy of suggested limb paralysis. Cortex, 49(2), 411-422. doi:10.1016/j.cortex.2012.09.016
  • Deeley, Q., Walsh, E., Oakley, D.A., Bell, V., Koppel, C., Mehta, M.A., & Halligan, P. (2013). Using hypnotic suggestion to model loss of control and awareness of movements: An exploratory fMRI study. PLoS ONE, 8(10), e78324. doi:10.1371/journal.pone.0078324
  • Halligan, P., & Oakley, D.A. (2013). Hypnosis and cognitive neuroscience: Bridging the gap. Cortex, 49(2), 359-364. doi:10.1016/j.cortex.2012.12.002
  • Oakley, D.A., & Halligan, P. (2013). Hypnotic suggestion: Opportunities for cognitive neuroscience. Nature Reviews Neuroscience, 14, 565-576. doi:10.1038/nrn3538
  • David, A.S., & Halligan, P.W. (2012). Editorial: Making an impact. Cognitive Neuropsychiatry, 17(5), 367-370.
  • Deeley, Q., Oakley, D.A., Toone, B., Giampietro, V., Brammer, M.J., Williams, S.C.R., & Halligan, P.W. (2012). Modulating the default mode network using hypnosis. International Journal of Clinical and Experimental Hypnosis, 60(2), 206-228.
  • Pechey, R., & Halligan, P. (2012). Using co-occurrence to evaluate belief coherence in a large non clinical sample. PLoS ONE, 7(11. doi:10.1371/journal.pone.0048446
  • Pechey, R., & Halligan, P.W. (2012). Prevalence and correlates of anomalous experiences in a large non-clinical sample. Psychology and Psychotherapy: Theory, Research and Practice, 85(2), 150-162.
  • Pechey, R., & Halligan, P.W. (2012). Using co-occurrence to evaluate belief coherence in a large non clinical sample. PLoS One, 7(11), e48446.
  • Pechey, R., & Halligan, P.W. (2012). Exploring the folk understanding of belief: Identifying key dimensions endorsed in the general population. Journal of Cognition and Culture, 12(1-2), 81-99.
  • Bell, V., Halligan, P.W., Pugh, K., & Freeman, D. (2011). Correlates of perceptual distortions in clinical and non-clinical populations using the Cardiff Anomalous Perceptions Scale (CAPS): associations with anxiety and depression and a re-validation using a representative population sample. Psychiatry Research, 189(3), 451-457.
  • Bell, V., Oakley, D.A., Halligan, P.W., & Deeley, Q. (2011). Dissociation in hysteria and hypnosis: evidence from cognitive neuroscience. Journal of Neurology, Neurosurgery & Psychiatry, 82(3), 332-339.
  • Oakley, D.A., & Halligan, P.W. (2011). Using hypnosis to gain insights into healthy and pathological cognitive functioning. Consciousness and Cognition, 20(2), 328-331.
  • Pechey, R., & Halligan, P. (2011). The prevalence of delusion-like beliefs relative to sociocultural beliefs in the general population. Psychopathology, 44(2), 106-115.
  • Oakley, D.A., & Halligan, P.W. (2009). Hypnotic suggestion and cognitive neuroscience. Trends in Cognitive Sciences, 13(6), 264-270.
  • Bell, V., Halligan, P.W., & Ellis, H.D. (2008). Are anomalous perceptual experiences necessary for delusions? The Journal of nervous and mental disease, 196(1), 3-8.
  • Oakley, D.A., Deeley, Q., & Halligan, P.W. (2007). Hypnotic depth and response to suggestion under standardized conditions and during FMRI scanning. The International journal of clinical and experimental hypnosis, 55(1), 32-58.
  • Bell, V., Halligan, P.W., & Ellis, H.D. (2006). Diagnosing delusions: a review of inter-rater reliability. Schizophrenia Research, 86(1-3), 76-79.

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