Professor Robert J Snowden - BSc York PhD Cantab
Overview
Research Group:
Wellbeing, Health & Mental Health
Location: Tower Building, Park Place
Email: Snowden@cardiff.ac.uk
Telephone: +44(0)29 208 74937
Research Summary
Forensic and Clinical Psychology:
My laboratory investigates the origins and management of severe problem behaviours. These include violence to others, sexual offending, suicide and self-harming behaviours.
Vision and visual attention:
My work here has slowed down in the past years due to the increasing load in the field of forensic and clinical psychology. Nevertheless, I still have projects looking at motion perception and of the effects of visual attention. I also have an interest in the effects of aging and Alzheimer’s Disease on these processes.
Teaching Summary
Level 1 – Module coordinate for PS1016 Introduction to Psychology – Teach 1 lecture (What is Psychology?) and 1 activity. Also give 1 lecture to PS1014 (Forensic Psychology)
Level 2 – Module coordinate for PS2009 Perception – Teach 11 lectures on visual perception
Level 3 - – Module coordinate for PS3500 Forensic Psychology – Teach 7 lecture s on violence, sex offending, psychopathy and risk assessment.
Selected Publications (2008 onwards)
Gray, N. S., Taylor, J., & Snowden, R. J. (2011). Predicting violence using structured professional judgment in patients with different mental and behavioral disorders Psychiatry Research, 187, 248-253. [pdf]
Copestake, S., Gray, N. S., & Snowden, R. J. (2011). A comparison of a self-report measure
of psychopathy with the psychopathy checklist-revised in a UK sample of offenders. Journal of Forensic Psychiatry & Psychology, 22: 2, 169 — 182. [pdf]
Fitzgerald, S., Gray N. S., Taylor, J. & Snowden R. J. (2011). Risk factors for recidivism in offenders with intellectual disabilities. Psychology, Crime and Law, 17 (1), 43-58. [pdf]
Tales, A., Snowden, R. J., Phillips, M. Haworth, J., Porter, G., Wilcock, G. & Bayer, A. (2011) Exogenous phasic alerting and spatial orienting in mild cognitive impairment compared to healthy ageing: study outcome is related to target response requirement. Cortex, 47, 180-190. [pdf]
Snowden, R. J., Craig, R. L. & Gray, N. S. (2011). Indirect behavioural measures of cognition among sexual offenders. Journal of Sex Research, 48(2–3), 192–217. [pdf]
Snowden, R. J., & Gray, N. S. (2011). Impulsivity and psychopathy: associations between the Barrett Impulsivity Scale and the Psychopathy Checklist revised. Psychiatry Research, 187, 414-417. [pdf]
Tales, A., Bayer, A. , Haworth, J., Snowden, R. J., Phillips, M.., & Wilcock, G. (2011). Visual search in mild cognitive impairment: A longitudinal study. Journal of Alzheimer’s Disease, 24(1), 51-160. [pdf]
Cvencek, D., Greenwald, A. G., Brown, A.., Gray N. S., & Snowden, R. J. (2010) Faking of the implicit association test is statistically detectable and partly correctable. Basic and Applied Social Psychology, 32, 302-314. [pdf]
Snowden, R. J. & Gray, N. S. (2010) The temperament and character of the psychopath : Relationships between the Psychopathy Checklist – Revised and the Temperament and Character Inventory in a sample of Personality Disordered repeat offenders. Journal of Forensic Psychiatry and Psychology, 21, 815-833. [pdf]
Snowden, R. J., Gray, N. S., & Taylor, J. (2010) Risk assessment for future violence in individuals from an ethnic minority group in the UK. International Journal of Forensic Mental Health, 9, 118-123. [pdf]
Snowden R. J., & Gray N. S. (2010) Helpful and unhelpful risk assessment practices reply. Psychiatric Services 61, 530-531. [pdf]
Snowden, R. J. & Gray, N. S. (2010) Implicit Social Cognition in Forensic Settings. In: B.Gawronski & B.K. Payne (Eds). ‘Handbook of Implicit Social Cognition: Measurement, Theory, and Applications’. New York: Guilford. pp522 – 534.
Gray, N. S. & Snowden, R. J. (2009) The implicit association test as a measure of sexual interest. In Thornton, D. and Laws, D. R. (Eds.) ‘Cognitive Approaches to the Assessment of Sexual Interest in Sexual Offenders’ (pp 101-123). Wiley-Blackwell. [pdf]
Snowden R. J., Gray N. S., Taylor, J. & Fitzgerald, S., (2009) Assessing risk of future violence in inpatients using the Classification of Violence Risk (COVR) Psychiatric Services 60, 1522-1526. [pdf]
Brown, A., Gray N. S. & Snowden R. J. (2009) Implicit measurement of sexual associations in child sex abusers. Role of victim type and denial. Sexual Abuse 21, 166-180. [pdf]
Freeman, T. Champion R. A., Sumnall, J. H., & Snowden R. J (2009) Do we have direct access to retinal image motion during smooth pursuit eye movements? Journal of Vision, 9:33, 1-11. [pdf]
Andrew, E. M., Gray N. S., & Snowden R. J. (2008) The relationship between trauma and beliefs about hearing voices: a study of psychiatric and non-psychiatric voice hearers. Psychological Medicine 38, 1409-1417. [pdf]
Gray N. S., Taylor J. & Snowden R. J. (2008) Predicting violent reconvictions using structured clinical judgment. British Journal of Psychiatry 192, 384-387. [pdf]
Snowden R. J., Wichter, J., & Gray N. S. (2008) Implicit and explicit measurements of sexual preference in gay and straight men: a comparison of priming techniques and the implicit association task. Archives of Sexual Behaviour, 37, 558-656. [pdf]
Publications
Full List of Publications
2011
Gray, N. S., Taylor, J., & Snowden, R. J. (2011). Predicting violence using structured professional judgment in patients with different mental and behavioral disorders Psychiatry Research, 187, 248-253. [pdf]
Copestake, S., Gray, N. S., & Snowden, R. J. (2011). A comparison of a self-report measure
of psychopathy with the psychopathy checklist-revised in a UK sample of offenders. Journal of Forensic Psychiatry & Psychology, 22: 2, 169 — 182. [pdf]
Fitzgerald, S., Gray N. S., Taylor, J. & Snowden R. J. (2011). Risk factors for recidivism in offenders with intellectual disabilities. Psychology, Crime and Law, 17 (1), 43-58. [pdf]
Tales, A., Snowden, R. J., Phillips, M. Haworth, J., Porter, G., Wilcock, G. & Bayer, A. (2011) Exogenous phasic alerting and spatial orienting in mild cognitive impairment compared to healthy ageing: study outcome is related to target response requirement. Cortex, 47, 180-190. [pdf]
Snowden, R. J., Craig, R. L. & Gray, N. S. (2011). Indirect behavioural measures of cognition among sexual offenders. Journal of Sex Research, 48(2–3), 192–217. [pdf]
Snowden, R. J., & Gray, N. S. (2011). Impulsivity and psychopathy: associations between the Barrett Impulsivity Scale and the Psychopathy Checklist revised. Psychiatry Research, 187, 414-417. [pdf]
Tales, A., Bayer, A. , Haworth, J., Snowden, R. J., Phillips, M.., & Wilcock, G. (2011). Visual search in mild cognitive impairment: A longitudinal study. Journal of Alzheimer’s Disease, 24(1), 51-160. [pdf]
2010
Cvencek, D., Greenwald, A. G., Brown, A.., Gray N. S., & Snowden, R. J. (2010) Faking of the implicit association test is statistically detectable and partly correctable. Basic and Applied Social Psychology, 32, 302-314. [pdf]
Snowden, R. J. & Gray, N. S. (2010) The temperament and character of the psychopath : Relationships between the Psychopathy Checklist – Revised and the Temperament and Character Inventory in a sample of Personality Disordered repeat offenders. Journal of Forensic Psychiatry and Psychology, 21, 815-833. [pdf]
Snowden, R. J., Gray, N. S., & Taylor, J. (2010) Risk assessment for future violence in individuals from an ethnic minority group in the UK. International Journal of Forensic Mental Health, 9, 118-123. [pdf]
Snowden R. J., & Gray N. S. (2010) Helpful and unhelpful risk assessment practices reply. Psychiatric Services 61, 530-531. [pdf]
Snowden, R. J. & Gray, N. S. (2010) Implicit Social Cognition in Forensic Settings. In: B.Gawronski & B.K. Payne (Eds). ‘Handbook of Implicit Social Cognition: Measurement, Theory, and Applications’. New York: Guilford. pp522 – 534.
2009
Gray, N. S. & Snowden, R. J. (2009) The implicit association test as a measure of sexual interest. In Thornton, D. and Laws, D. R. (Eds.) ‘Cognitive Approaches to the Assessment of Sexual Interest in Sexual Offenders’ (pp 101-123). Wiley-Blackwell. [pdf]
Snowden R. J., Gray N. S., Taylor, J. & Fitzgerald, S., (2009) Assessing risk of future violence in inpatients using the Classification of Violence Risk (COVR) Psychiatric Services 60, 1522-1526. [pdf]
Brown, A., Gray N. S. & Snowden R. J. (2009) Implicit measurement of sexual associations in child sex abusers. Role of victim type and denial. Sexual Abuse 21, 166-180. [pdf]
Freeman, T. Champion R. A., Sumnall, J. H., & Snowden R. J (2009) Do we have direct access to retinal image motion during smooth pursuit eye movements? Journal of Vision, 9:33, 1-11. [pdf]
2008
Andrew, E. M., Gray N. S., & Snowden R. J. (2008) The relationship between trauma and beliefs about hearing voices: a study of psychiatric and non-psychiatric voice hearers. Psychological Medicine 38, 1409-1417. [pdf]
Gray N. S., Taylor J. & Snowden R. J. (2008) Predicting violent reconvictions using structured clinical judgment. British Journal of Psychiatry 192, 384-387. [pdf]
Snowden R. J., Wichter, J., & Gray N. S. (2008) Implicit and explicit measurements of sexual preference in gay and straight men: a comparison of priming techniques and the implicit association task. Archives of Sexual Behaviour, 37, 558-656. [pdf]
2007
Gray N. S., Fitzgerald, S., Taylor J. MacCulloch M. J. & Snowden R. J. (2007) Predicting future reconvictions in offenders with Intellectual Disabilities: The predictive efficacy of VRAG, PCL-SV and the HCR-20. Psychological Assessment, 19, 474-479. [pdf]
Evans, L., Gray N. S., & Snowden R. J. Reduced P50 suppression is associated with the cognitive disorganisation dimension of schizotypy. (2007) Schizophrenia Research, 97, 152-162.
Walters, G. D., Gray N. S., Jackson, R. L., Sewell, K. W., Rogers, R. Taylor J. & Snowden R. J. (2007) A taxometric analysis of the psychopathy checklist: screening version: Further evidence of dimensionality. Psychological Assessment, 19, 330-339. [pdf]
Snowden R. J. Gray N. S., Taylor J. & MacCulloch M. J. (2007) The efficacy of actuarial measures of reconviction (VRAG and OGRS) in a UK population of mentally disordered offenders Psychological Medicine, 37, 1539-1549. [pdf]
Fitzgerald, S., Gray N. S., & Snowden R. J. (2007) A comparison of WAIS-R and WAIS-III in the lower IQ range: implications for Learning Disability diagnosis. Journal of Applied Research in Intellectual Disabilities, 20, 323-330. [pdf]
Evans, L., Gray N. S., & Snowden R. J. (2007) A new continuous within-participants latent inhibition task: Examining associations with schizotypy dimensions, smoking status and gender Biological Psychology, 74, 365-373. [pdf]
2006
Tales A., and Snowden R. J.(2006) Alerting and Orienting in Alzheimer’s Disease. Are the interdependent? Reply to Festa et al (2006). Neuropsychology, 20, 761-762. [pdf]
Tales A., Snowden R. J., Brown, M. & Wilcock, G. K. (2006) Alerting and Orienting in Alzheimer’s Disease. Neuropsychology, 20, 752-756. [pdf]
Zhaoping, L. & Snowden R. J. (2006) A theory of a saliency map in primary visual cortex (V1) tested by psychophysics of colour-orientation interference in texture segmentation. Visual Cognition 14, 911-933.
Snowden R. J. & Kavanagh, E. (2006) Motion perception in the ageing visual system: minimum motion, motion coherence and speed discrimination thresholds. Perception 35, 9-24. [pdf]
2005
Gray N. S., & Snowden R. J. (2005) The relevance of irrelevance to schizophrenia. Neuroscience and Biobehavioural Review2, 29, 989-999. [pdf]
Evans, L. H., Gray N. S., & Snowden R. J. (2005) Prepulse inhibition of startle and its moderation by schizotypy and smoking. Psychophysiology, 42, 223-231. [pdf]
Gray N. S.,Brown, A., MacCulloch M. J., Smith, J. & Snowden R. J. (2005). Implicit test of the associations between children and sex in pedophiles . Journal of Abnormal Psychology, 114, 304-308. [pdf]
Tales A., Snowden R. J., Haworth, J. & Wilcock, G. K. (2005) Abnormal spatial and non-spatial cueing effects in Mild Cognitive Impairment and Alzheimer’s disease. Neurocase, 11, 85-92. [pdf]
Tales A., Haworth, J., Nelson, S., Snowden R. J., & Wilcock, G. K. (2005) Abnormal visual search in Mild Cognitive Impairment and Alzheimer’s disease. Neurocase 11, 80-84. [pdf]
2004
Snowden R. J., Gray N. S., Smith, J., Morris, M. & MacCulloch M. J. (2004) Implicit affective associations to violence in psychopathic murderers. Journal of Forensic Psychiatry and Psychology 15, 620-641. [pdf]
Snowden, R. J. & Freeman, T. C. A. (2004) The visual perception of motion. Current Biology, 14, R828-R831. [pdf]
Gray N. S., Snowden R. J., MacCulloch S., Phillips H, Taylor J. & MacCulloch M. J. (2004) Relative efficacy of criminological, clinical and personality measures of future risk of offending in mentally disordered offenders: A comparative study of HCR-20, PCL-R and OGRS. Journal of Consulting and Clinical Psychology, 72, 523-530. [pdf]
Tales A., Muir J., Bayer, A., Jones, R. & Snowden R. J. (2004) The effects of saliency and task difficulty on visual search performance in ageing and Alzheimer’s disease. Neuropsychologia, 42, 335-345. [pdf]
2003
Freeman, T. C. A., Sumnall, J., & Snowden, R. J. (2003) The extra-retinal motion aftereffect Journal of Vision, 3, 771-779. [pdf]
Gray N. S., Hill, C., McGleish, A., Timmons, D., MacCulloch M. J., & Snowden R. J. (2003) Prediction of violence and self-harm in mentally disordered offenders: a prospective study of the efficacy of HCR-20, PCL-R and psychiatric symptomatology. Journal of Consulting and Clinical Psychology, 71, 443-451. [pdf]
Sumnall, J., Freeman, T. C. A., & Snowden, R. J. (2003) Optokinetic potential and the perception of head-centred speed. Vision Research, 43, 1709-1718. [pdf]
Gray N. S., MacCulloch M. J., Smith, J., Morris, M., & Snowden R. J. (2003) Violence viewed by psychopathic murderers. Nature, 423, 497-498. [pdf]
Gray N. S., Carman N. G., Rogers P., MacCulloch M. J., Hayward P., & Snowden R. J. (2003) Post-traumatic stress disorder caused by committing a serious violent or sexual offence in mentally disordered offenders. Journal of Forensic Psychiatry and Psychology 14, 27-43. [pdf]
Gray, N. S., Snowden, R. J., Peoples, M., Hemsley, D. R, & Gray, J. A. (2003) A demonstration of within-subjects latent inhibition in the human: limitations and advantages. Behavioural Brain Research, 138, 1-8. [pdf]
2002
Tales A., Muir J., Bayer, A., Jones, R. & Snowden R. J. (2002) Visual alerting in Alzheimer’s disease and normal aging. NeuroReport, 13, 2557-2560. [pdf]
Tales A., Muir J., Bayer, A., & Snowden R. J. (2002) Spatial shifts in visual attention in normal ageing and dementia of the Alzheimer type. Neuropsychologia, 40, 2000-2012. [pdf]
Gray, N. S., Fernandez M., Williams, J., Ruddle, R. & Snowden, R. J. (2002) Which schizotypal dimensions abolish latent inhibition? British Journal of Clinical Psychiatry, 41, 271-284. [pdf]
Ansari, E., Morgan, J. & Snowden, R. J. (2002) Psychophysical characterisation of early functional loss in glaucoma and ocular hypertension British Journal of Ophthalmology, 86, 1131-1135. [pdf]
Snowden, R. J. (2002) Visual attention to colour: parvocellular guidance of attentional resources. Psychological Science, 13, 180-184. [pdf]
Gray N. S., Pickering A. D., Snowden R. J., Hemsley, D. R. & Gray, J. A. (2002) The partial reinforcement extinction effect in humans: influence of amphetamine, schizophrenia and schizotypy Behavioural Brain Research, 133, 333-342. [pdf]
Ansari, E., Morgan, J. & Snowden, R. J. (2002) Glaucoma: Squaring the psychophysics and neurobiology. British Journal of Ophthalmology, 86, 823-826. [pdf]
2001
White, J., Ruddle, R., Howes, A., Snowden, R., Savage, J., & Jones, D.M. (2001). Eyes in the sky: human factors and unmanned air vehicles. Journal ofDefence Science, 6, 88-94.
Snowden, R. J. (2001) Contrast gain mechanism or transient channel? Why the effects of a background pattern alter over time Vision Research, 41, 1879-1883. [pdf]
Gray, N. S., Williams, J., Fernandez, M., Ruddle, R. Good, M. & Snowden, R. J. (2001) Context dependent latent inhibition in adult humans Quarterly Journal of Experimental Psychology 54B, 233-245. [pdf]
Snowden, R. J., Willey, J. & Muir, J. L. (2001) Visuospatial attention: the role of target salience and task difficulty when assessing the effects of cues Perception 30, 983-991. [pdf]
Doyle, M. C. & Snowden, R. J. (2001) Identification of visual stimuli is improved by accompanying auditory stimuli: the role of eye movements and sound location. Perception 30, 795-810. [pdf]
Ansari, E. A., Morgan, J. E. & Snowden, R. J. (2001) Diffuse loss of contrast sensitivity in early glaucoma. Perimetry Update 2000/2001 307-313
2000
Blakemore, M. & Snowden, R. J. (2000) Textured backgrounds alter perceived speed. Vision Research, 40 629-638. [pdf]
Brawn, P. T. & Snowden, R. J. (2000) Attention to overlapping objects: detection and discrimination of luminance changes. Journal of Experimental Psychology: Human Perception and Performance, 26, 342-358. [pdf]
Snowden, R. J. & Verstraten, F. (2000) Two-directions at once – a reply to Grunewald. Trends in Cognitive Sciences 4, 77.
1999
Snowden, R. J. & Edmunds (1999) Colour and polarity contributions to global motion perception? Vision Research 39, 1813-1822.
Snowden, R. J. & Rossiter, M. C. (1999). Stereoscopic depth cues can segment motion information Perception 28, 193-201. [pdf]
Blakemore, M. & Snowden, R. J. (1999) The effect of contrast on perceived speed: a general phenomenon? Perception 28, 33-48. [pdf]
Snowden, R. J. (1999) Visual Perception: Here's mud in your mind's eye Current Biology 9, R336- R337. [pdf]
Brawn, P. T. & Snowden, R. J. (1999) Can one pay attention to a particular color? Perception and Psychophysics 61, 860-873.
Snowden, R. J. & Verstraten, F. (1999) Motion transparency: making models of motion perception transparent. Trends in Cognitive Sciences 3, 369-377. [pdf]
1998
Snowden, R. J. Stimpson, N. and Ruddle, R. A. (1998) Speed perception fogs up as visibility drops Nature 392, 450. [pdf]
Snowden, R. J. & Hammett, S. T. (1998) The effects of surround contrast on contrast thresholds, perceived contrast and contrast discrimination. Vision Research 38, 1935-1945. [pdf]
Snowden, R. J. (1998) Texture segregation and visual search: a comparison of the effects of random variations along irrelevant dimensions. Journal of Experimental Psychology: Human Perception and Performance 24, 1354-1367. [pdf]
Snowden, R. J. (1998) Shifts in perceived position following adaptation to visual motion. Current Biology 8, 1343-1345. [pdf]
1997
Snowden, R. J. & Milne, A. B. (1997) Phantom motion aftereffects: evidence of detectors for the analysis of optic flow. Current Biology 7, 717-722. [pdf]
1996
Snowden, R. J. & Hammett, S. T. (1996) Spatial frequency adaptation: threshold elevation and perceived contrast. Vision Research 36, 1797-1809.
Snowden, R. J. & Milne, A. B. (1996) The effects of adapting to complex motions: position invariance and tuning to spiral motions. Journal of Cognitive Neuroscience 8, 435-452
1995
Hammett, S. T. & Snowden R. J. (1995) The effects of adaptation on briefly presented stimuli. Vision Research 35, 1721-1725.
Snowden R. J., Ullrich, D. & Bach R. F. (1995) Isolation and characterization of a steady-state visually evoked potential in humans related to the motion of a stimulus. Vision Research 35, 1365-1373.
Snowden R. J., Waugh S. J. & Hess R. F. (1995) The processing of temporal modulation at different levels of retinal illumination. Vision Research 35, 775-789.
1994
Graziano, M. S. A., Andersen, R. A. & Snowden, R. J. (1994) Tuning of MST neurons to spiral stimuli. Journal of Neuroscience 14, 54-67.
Snowden, R. J. (1994) The adaptability of the visual system is inversely related to its sensitivity. Journal of the Optical Society of America A 11, 25-31. [pdf]
Hammett S. T., Snowden, R. J. & Smith A. T. (1994) Perceived contrast as a function of adaptation duration. Vision Research 34, 31-40.
Smith, A. T., Snowden R. J. & Milne, A. B. (1994) Is global motion really based on spatial integration of local motion signals? Vision Research 34, 2425-2430.
Smith, A. T. and Snowden, R. J. (Eds.) (1994) Visual Detection of Motion. Academic Press.
Snowden, R., Thompson, P. and Troscianko, T. (2006) Basic Vision: An introduction to visual perception. Oxford University Press.
1993
Treue S., Snowden R. J. & Andersen R. A. (1993) The effect of transiency on perceived velocity of visual patterns: a case of 'temporal capture'. Vision Research 33,791-798.
1992
Snowden, R. J. & Hess, R. F. (1992) Temporal frequency filters in the human peripheral visual field. Vision Research 32, 61-72. [pdf]
Hess, R. F. & Snowden, R. J. (1992) Temporal properties of the human visual filters: Number, shapes and spatial covariation. Vision Research 32, 47-59. [pdf]
Snowden R. J. & Hammett S. T. (1992) Subtractive and divisive adaptation in the visual system. Nature 355, 248-250.
Snowden R. J., Treue S. & Andersen R. A. (1992) The response of neurons in areas V1 and MT of the alert rhesus monkey to moving random patterns Experimental Brain Research 88, 389-400.
Snowden R. J. (1992) The perception of visual motion. Current Opinion in Neurobiology 2, 175-179.
Snowden, R. J. (1992) Orientation bandwidths: the effect of spatial and temporal frequency. Vision Research 32, 1965-1974. [pdf]
Snowden, R. J. (1992) Sensitivity to relative and absolute motion. Perception 21, 563-568.
1991
Snowden, R. J. (1991) Measurement of visual channels by contrast adaptation. Proceedings of the Royal Society of London Series B. 246, 53-59. [pdf]
Snowden, R. J. & Braddick, O. J. (1991) The temporal integration and resolution of velocity signals. Vision Research 31, 907-914. [pdf]
Snowden, R. J., Treue, S., Erickson, R. G. & Andersen, R. A. (1991) The response of area MT and V1 neurons to transparent motion. Journal of Neuroscience 11, 2768-2785
1990
Andersen, R. A., Snowden, R. J., Treue, S. & Graziano, M. (1990) Hierarchical processing of motion in the visual cortex of monkey. Cold Spring Harbor Symposium on Quantitative Biology 55: The Brain,741-748.
Snowden, R. J. (1990) Suppressive interactions between moving patterns: role of velocity. Perception and Psychophysics 47, 74-78.
Snowden, R. J. & Braddick, O. J. (1990) Differences in the processing of short-range apparent motion at small and large displacements. Vision Research 30, 1211-1222. [pdf]
1989
Snowden, R. J. & Braddick, O. J. (1989) Extension of displacement limits in multiple-exposure sequences of apparent motion. Vision Research 29, 1777-1787. [pdf]
Snowden, R. J. & Braddick, O. J. (1989) The combination of motion signals over time. Vision Research 29, 1621-1630. [pdf]
Snowden, R. J. (1989) Motions in orthogonal directions are mutually suppressive. Journal of the Optical Society of America A 6, 1096-1101.
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Research
Research Topics and Related Papers
Forensic and Clinical Psychology:
My laboratory investigates the origins and management of severe problem behaviours. These include violence to others, sexual offending, suicide and self-harming behaviours.
On-going projects include:
- Use of structured professional judgment and actuarial assessment of future violence in mentally disordered offenders.
- Development of a clinical battery of test for a Personality Disorder Service.
- RAPID (Risk of Aggression Protocol for Intellectual Disabilities): Development of a screening tool for violence in learning disability services
- Self-esteem, parental bonding and sexual offending
- Self-esteem and aggression
- Self-harming behaviours in Borderline Personality Disorder
- Prediction of suicide using the RoSP (Risk of Suicide Protocol)
- Emotional processing and intelligence in psychopathic offenders
- Implicit measurement of sex-related cognitions in normal populations (hetero and homosexual men and women)
- Impulsivity, psychopathy and personality disorders
- Perceptual sensitivity, strength of the nervous system and psychopathology
- Use of implicit measures
Vision and visual attention:
My work here has slowed down in the past years due to the increasing load in the field of forensic and clinical psychology. Nevertheless, I still have projects looking at motion perception and of the effects of visual attention. I also have an interest in the effects of aging and Alzheimer’s Disease on these processes.
Funding
Partnerships in Care PLC
Pastoral Cymru
Research Collaborators
All the work in the domain of Forensic and Clinical Psychology is done in collaboration with a Chartered Clinical and Forsensic psychologist (Professor Nicola Gray). We work closely with two independent providers of mental health services – Partnerships in Care (PiC) and Pastoral Cymru. They not only help provide the funds to do this work but aid greatly in access to participants. The work also involves many other hospitals (e.g, Llanarth Court, The Dene, Cefn Coed, Caswell Clinic), prisons (HMP Usk, HMP Grendon, Parc Prison) and other services (e.g, Gwent Learning Disability Service).
I have a longstanding collaboration with Dr Andrea Tales (Bristol University) on visual attention and Alzheimer’s Disease.
Postgraduate Students
Postgraduate Research Interests
My research aims to help understand, predict and manage patients with severe behavioural problems
due to mental health issues (psychopathy, personality disorders, mental illness). The major strands
of my work are:
Prediction and prevention of future violence and sexual violence to others,
Prediction and prevention of suicide and self-harm,
Understanding motivations and cognitions underpinning severe behavioural problems through
the use of explicit and implicit methodologies,
Understanding neuropsychological deficits underpinning severe behavioural problems (e.g.,
impulsivity).
The research is conducted in collaboration with a clinical and forensic psychologist (Professor
Nicola Gray), and has strong links to secure units (Pastoral Cymru, and Partnerships in Care), as
well as local hospitals, prisons and community services.
Motion perception: including the perception of speed, and how contrast effects (e.g. fog) and light
interact to alter our perception of speed; The effects of old age on the visual system; Visual
processes in various conditions (glaucoma, schizophrenia, Alzheimer's disease).
If you are interested in applying for a PhD, or for further information regarding my postgraduate research, please contact me directly (contact details available on the 'Overview' page), or submit a formal application here.
Current Students
Suzana Ahmad - Self-esteem and violence : a cross cultural examination of models of violence.
Rebecca Craig - Attachment, self-esteem and cognitive distortions in child molesters
Sonja Copestake – Emotional processing and psychopathy
Also advisor to:
Richard Benson – Use of implicit measures of cognition in self-harm and personality disorders (University of Glamorgan)
Jenny Clarke – Risk of Suicide Protocol (RoSP): an evaluation of reliability and validity (University of Glamorgan)
Previous Students
Peter T. Brawn " Selectively attending to colour and objects." PhD. Cardiff University (1998)
Mark R. Blakemore " Factors involved in the perception of motion" Ph.D. Cardiff University (1998)
Melanie C. Doyle " Facilitatory effects of response-irrelevant sound upon the acquisition of visual targets" Ph.D. Cardiff University (1999)
Jennifer Willey " Exploration of the role of attentional processing in the positive symptoms of schizophrenia and schizotypy " Ph.D. Cardiff University (2001)
Emma Kavanagh " The perception of motion in old age" Ph.D. Cardiff University (2003)
Jan Wichter “Supra- and subliminal priming of implicit attitudes – a tool for detecting deviant personalities ” M.Phil Cardiff University (2004)
Jennifer Smith “Differentiating criminal personalities by use of implicit attitude tests” M.Phil Cardiff University (2005)
Lisa Evans “Cognitive inhibition in schizophrenia and schizotypy” Ph.D. Cardiff University (2005)
Anthony Brown “Implicit measurements of child-sex associations in paedophiles” Ph.D. Cardiff University (2006)
Suzanne Fitzgerald “Risk assessment in the learning disabled ” Ph.D. Cardiff University (2008)
Elizabeth Andrew “Command hallucinations: compliance and dangerousness” Ph.D. Cardiff University (2010)
Biography
Undergraduate Education
York University – BSc Psychology (1985)
Postgraduate Education
Cambridge University – PhD Experimental Psychology (1989)
Employment
Post-doctoral research Fellow Massachusetts Institute of Technology