![Gavin Perry](https://profiles-cardiff.imgix.net/attachments/3043?w=200&h=200&auto=format&crop=faces&fit=crop&q=90")
Dr Gavin Perry
Research Associate & MEG Laboratory Manager
- PerryG@cardiff.ac.uk
- +44 29206 88814
- Cardiff University Brain Research Imaging Centre, Maindy Road, Cardiff, CF24 4HQ
Overview
Research summary
My interest is in the use of magnetoencephalography (MEG) to explore perception and cognition, particularly within the domain of vision.
My current focus is on understanding the role of gamma oscillations in the visual system: How are they generated? What is their functional role? Can they provide information about disease states?
Teaching summary
I currently teach MEG lab practicals and supervise projects on the MSc NeuroImaging course. I also teach on the Doctoral Academy course, 'MATLAB: An Introduction'.
Publication
2023
- Merritt, K. et al. 2023. The impact of cumulative obstetric complications and childhood trauma on brain volume in young people with psychotic experiences. Molecular Psychiatry (10.1038/s41380-023-02295-6)
- Dimitriadis, S. I. et al. 2023. Genetic risk for schizophrenia is associated with increased proportion of indirect connections in brain networks revealed by a semi-metric analysis: evidence from population sample stratified for polygenic risk. Cerebral Cortex 33(6), pp. 2997-3011. (10.1093/cercor/bhac256)
2022
- Lancaster, T., Dimitriadis, S., Perry, G., Zammit, S., O'Donovan, M. and Linden, D. 2022. Morphometric analysis of structural MRI using schizophrenia meta-analytic priors distinguish patients from controls in two independent samples and in a sample of individuals with high polygenic risk. Schizophrenia Bulletin 48(2), pp. 524-532., article number: sbab125. (10.1093/schbul/sbab125)
2021
- Dimitriadis, S. I. et al. 2021. Global brain flexibility during working memory is reduced in a high genetic risk group for schizophrenia. Biological Psychiatry: Cognitive Neuroscience and Neuroimaging 6(12), pp. 1176-1184. (10.1016/j.bpsc.2021.01.007)
- Dimitriadis, S. I. et al. 2021. Genetic risk for schizophrenia is associated with altered visually-induced gamma band activity: evidence from a population sample stratified polygenic risk. Translational Psychiatry 11, article number: 592. (10.1038/s41398-021-01678-z)
2020
- Perry, G., Taylor, N. W., Bothwell, P. C. H., Milbourn, C. C., Powell, G. and Singh, K. D. 2020. The gamma response to colour hue in humans: evidence from MEG. PLoS ONE 15(12), article number: e0243237. (10.1371/journal.pone.0243237)
- Dima, D. C. et al. 2020. Electrophysiological network alterations in adults with copy number variants associated with high neurodevelopmental risk. Translational Psychiatry 10, article number: 324. (10.1038/s41398-020-00998-w)
- Sharp, T. H. et al. 2020. Population neuroimaging: generation of a comprehensive data resource within the ALSPAC pregnancy and birth cohort. Wellcome Open Research 5, article number: 203. (10.12688/wellcomeopenres.16060.1)
2019
- Lancaster, T. M. et al. 2019. Structural and functional neuroimaging of polygenic risk for schizophrenia: a recall-by-genotype-based approach. Schizophrenia Bulletin 45(2), pp. 405-414. (10.1093/schbul/sby037)
2018
- Dima, D. C., Perry, G., Messaritaki, E., Zhang, J. and Singh, K. D. 2018. Spatiotemporal dynamics in human visual cortex rapidly encode the emotional content of faces. Human Brain Mapping 39(10), pp. 3993-4006. (10.1002/hbm.24226)
- Dima, D., Perry, G. and Singh, K. 2018. Spatial frequency supports the emergence of categorical representations in visual cortex during natural scene perception. NeuroImage 179, pp. 102-116. (10.1016/j.neuroimage.2018.06.033)
2017
- Messaritaki, E., Koelewijn, L., Dima, D., Williams, G., Perry, G. and Singh, K. 2017. Assessment and elimination of the effects of head movement on MEG resting-state measures of oscillatory brain activity. NeuroImage 159, pp. 302-324. (10.1016/j.neuroimage.2017.07.038)
2016
- Pinotsis, D. A., Perry, G., Litvak, V., Singh, K. D. and Firston, K. 2016. Intersubject variability and induced gamma in the visual cortex: DCM with empirical bayes and neural fields. Human Brain Mapping 37(12), pp. 4597-4614. (10.1002/hbm.23331)
- Perry, G. 2016. The visual gamma response to faces reflects the presence of sensory evidence and not awareness of the stimulus. Royal Society Open Science 3(3), article number: 150593. (10.1098/rsos.150593)
2015
- Robson, S. E. et al. 2015. Structural and neurochemical correlates of individual differences in gamma frequency oscillations in human visual cortex. Journal of Anatomy 227(4), pp. 409-417. (10.1111/joa.12339)
- Perry, G. 2015. The effects of cross-orientation masking on the visual gamma response in humans. European Journal of Neuroscience 41(11), pp. 1484-1495. (10.1111/ejn.12900)
- Perry, G., Randle, J., Koelewijn, L., Routley, B. C. and Singh, K. D. 2015. Linear tuning of gamma amplitude and frequency to luminance contrast: evidence from a continuous mapping paradigm. PLoS ONE 10(4), article number: e0124798. (10.1371/journal.pone.0124798)
2014
- Perry, G., Brindley, L., Muthukumaraswamy, S. D., Singh, K. D. and Hamandi, K. 2014. Evidence for increased visual gamma responses in photosensitive epilepsy. Epilepsy Research 108(6), pp. 1076-1086. (10.1016/j.eplepsyres.2014.04.012)
- Perry, G. and Singh, K. 2014. Localizing evoked and induced responses to faces using magnetoencephalography. European Journal of Neuroscience 39(9), pp. 1517-1527. (10.1111/ejn.12520)
2013
- Perry, G., Hamandi, K., Brindley, L., Muthukumaraswamy, S. D. and Singh, K. D. 2013. The properties of induced gamma oscillations in human visual cortex show individual variability in their dependence on stimulus size. Neuroimage 68, pp. 83-92. (10.1016/j.neuroimage.2012.11.043)
2011
- Perry, G., Adjamian, P., Thai, N. J., Holliday, I. E., Hillebrand, A. and Barnes, G. R. 2011. Retinotopic mapping of the primary visual cortex - a challenge for MEG imaging of the human cortex. European Journal of Neuroscience 34(4), pp. 652-661. (10.1111/j.1460-9568.2011.07777.x)
- Pothos, E. M., Perry, G., Corr, P. J., Matthew, M. R. and Busemeyer, J. R. 2011. Understanding cooperation in the Prisoner's Dilemma game. Personality and Individual Differences 51(3), pp. 210-215. (10.1016/j.paid.2010.05.002)
2010
- Perry, G., Rolls, E. T. and Stringer, S. M. 2010. Continuous transformation learning of translation invariant representations. Experimental Brain Research 204(2), pp. 255-270. (10.1007/s00221-010-2309-0)
2006
- Perry, G., Rolls, E. T. and Stringer, S. M. 2006. Spatial vs temporal continuity in view invariant visual object recognition learning. Vision Research 46(23), pp. 3994-4006. (10.1016/j.visres.2006.07.025)
- Stringer, S. M., Perry, G., Rolls, E. T. and Proske, J. H. 2006. Learning invariant object recognition in the visual system with continuous transformations. Biological Cybernetics 94(2), pp. 128-142. (10.1007/s00422-005-0030-z)
Articles
- Merritt, K. et al. 2023. The impact of cumulative obstetric complications and childhood trauma on brain volume in young people with psychotic experiences. Molecular Psychiatry (10.1038/s41380-023-02295-6)
- Dimitriadis, S. I. et al. 2023. Genetic risk for schizophrenia is associated with increased proportion of indirect connections in brain networks revealed by a semi-metric analysis: evidence from population sample stratified for polygenic risk. Cerebral Cortex 33(6), pp. 2997-3011. (10.1093/cercor/bhac256)
- Lancaster, T., Dimitriadis, S., Perry, G., Zammit, S., O'Donovan, M. and Linden, D. 2022. Morphometric analysis of structural MRI using schizophrenia meta-analytic priors distinguish patients from controls in two independent samples and in a sample of individuals with high polygenic risk. Schizophrenia Bulletin 48(2), pp. 524-532., article number: sbab125. (10.1093/schbul/sbab125)
- Dimitriadis, S. I. et al. 2021. Global brain flexibility during working memory is reduced in a high genetic risk group for schizophrenia. Biological Psychiatry: Cognitive Neuroscience and Neuroimaging 6(12), pp. 1176-1184. (10.1016/j.bpsc.2021.01.007)
- Dimitriadis, S. I. et al. 2021. Genetic risk for schizophrenia is associated with altered visually-induced gamma band activity: evidence from a population sample stratified polygenic risk. Translational Psychiatry 11, article number: 592. (10.1038/s41398-021-01678-z)
- Perry, G., Taylor, N. W., Bothwell, P. C. H., Milbourn, C. C., Powell, G. and Singh, K. D. 2020. The gamma response to colour hue in humans: evidence from MEG. PLoS ONE 15(12), article number: e0243237. (10.1371/journal.pone.0243237)
- Dima, D. C. et al. 2020. Electrophysiological network alterations in adults with copy number variants associated with high neurodevelopmental risk. Translational Psychiatry 10, article number: 324. (10.1038/s41398-020-00998-w)
- Sharp, T. H. et al. 2020. Population neuroimaging: generation of a comprehensive data resource within the ALSPAC pregnancy and birth cohort. Wellcome Open Research 5, article number: 203. (10.12688/wellcomeopenres.16060.1)
- Lancaster, T. M. et al. 2019. Structural and functional neuroimaging of polygenic risk for schizophrenia: a recall-by-genotype-based approach. Schizophrenia Bulletin 45(2), pp. 405-414. (10.1093/schbul/sby037)
- Dima, D. C., Perry, G., Messaritaki, E., Zhang, J. and Singh, K. D. 2018. Spatiotemporal dynamics in human visual cortex rapidly encode the emotional content of faces. Human Brain Mapping 39(10), pp. 3993-4006. (10.1002/hbm.24226)
- Dima, D., Perry, G. and Singh, K. 2018. Spatial frequency supports the emergence of categorical representations in visual cortex during natural scene perception. NeuroImage 179, pp. 102-116. (10.1016/j.neuroimage.2018.06.033)
- Messaritaki, E., Koelewijn, L., Dima, D., Williams, G., Perry, G. and Singh, K. 2017. Assessment and elimination of the effects of head movement on MEG resting-state measures of oscillatory brain activity. NeuroImage 159, pp. 302-324. (10.1016/j.neuroimage.2017.07.038)
- Pinotsis, D. A., Perry, G., Litvak, V., Singh, K. D. and Firston, K. 2016. Intersubject variability and induced gamma in the visual cortex: DCM with empirical bayes and neural fields. Human Brain Mapping 37(12), pp. 4597-4614. (10.1002/hbm.23331)
- Perry, G. 2016. The visual gamma response to faces reflects the presence of sensory evidence and not awareness of the stimulus. Royal Society Open Science 3(3), article number: 150593. (10.1098/rsos.150593)
- Robson, S. E. et al. 2015. Structural and neurochemical correlates of individual differences in gamma frequency oscillations in human visual cortex. Journal of Anatomy 227(4), pp. 409-417. (10.1111/joa.12339)
- Perry, G. 2015. The effects of cross-orientation masking on the visual gamma response in humans. European Journal of Neuroscience 41(11), pp. 1484-1495. (10.1111/ejn.12900)
- Perry, G., Randle, J., Koelewijn, L., Routley, B. C. and Singh, K. D. 2015. Linear tuning of gamma amplitude and frequency to luminance contrast: evidence from a continuous mapping paradigm. PLoS ONE 10(4), article number: e0124798. (10.1371/journal.pone.0124798)
- Perry, G., Brindley, L., Muthukumaraswamy, S. D., Singh, K. D. and Hamandi, K. 2014. Evidence for increased visual gamma responses in photosensitive epilepsy. Epilepsy Research 108(6), pp. 1076-1086. (10.1016/j.eplepsyres.2014.04.012)
- Perry, G. and Singh, K. 2014. Localizing evoked and induced responses to faces using magnetoencephalography. European Journal of Neuroscience 39(9), pp. 1517-1527. (10.1111/ejn.12520)
- Perry, G., Hamandi, K., Brindley, L., Muthukumaraswamy, S. D. and Singh, K. D. 2013. The properties of induced gamma oscillations in human visual cortex show individual variability in their dependence on stimulus size. Neuroimage 68, pp. 83-92. (10.1016/j.neuroimage.2012.11.043)
- Perry, G., Adjamian, P., Thai, N. J., Holliday, I. E., Hillebrand, A. and Barnes, G. R. 2011. Retinotopic mapping of the primary visual cortex - a challenge for MEG imaging of the human cortex. European Journal of Neuroscience 34(4), pp. 652-661. (10.1111/j.1460-9568.2011.07777.x)
- Pothos, E. M., Perry, G., Corr, P. J., Matthew, M. R. and Busemeyer, J. R. 2011. Understanding cooperation in the Prisoner's Dilemma game. Personality and Individual Differences 51(3), pp. 210-215. (10.1016/j.paid.2010.05.002)
- Perry, G., Rolls, E. T. and Stringer, S. M. 2010. Continuous transformation learning of translation invariant representations. Experimental Brain Research 204(2), pp. 255-270. (10.1007/s00221-010-2309-0)
- Perry, G., Rolls, E. T. and Stringer, S. M. 2006. Spatial vs temporal continuity in view invariant visual object recognition learning. Vision Research 46(23), pp. 3994-4006. (10.1016/j.visres.2006.07.025)
- Stringer, S. M., Perry, G., Rolls, E. T. and Proske, J. H. 2006. Learning invariant object recognition in the visual system with continuous transformations. Biological Cybernetics 94(2), pp. 128-142. (10.1007/s00422-005-0030-z)
Biography
Undergraduate education
2000 - BSc (hons) Psychology – University of Birmingham
Postgraduate education
2006 - DPhil Experimental Psychology – University of Oxford
2001 - MSc Cognitive Science – University of Birmingham
Employment
2014- MEG Laboratory Manager – CUBRIC, School of Psychology, Cardiff University.
2012-2014 - Research Associate – Institute of Psychological Medicine and Clinical Neurosciences, School of Medicine, Cardiff University.
2010-2012 - Research Associate (Epilepsy Research UK) – CUBRIC, School of Psychology, Cardiff University.
2008-2010 - Wales Institute of Cognitive Neuroscience Research Officer – Department of Psychology, Swansea University
2006-2008 - Research Fellow – Wellcome Trust Laboratory for MEG Studies, School of Life and Health Sciences, Aston University