Browse by All Cardiff Authors

Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X and Gray, Nicola S. 2025. Reduction in distraction due to perceptual load: A failure to replicate. Perception 10.1177/03010066251364203

Gray, Nicola S., Price, Menna, Pink, Jennifer, O'Connor, Chris, Antunes, Ana and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2024. Measuring the pupillary light reflex using portable instruments in applied settings. Vision 8 (4) , 60. 10.3390/vision8040060

Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X, Midgley, Poppy and Gray, Nicola S. 2024. Automatic distraction by sexual images: Gender differences. Sexes 5 (4) , pp. 778-795. 10.3390/sexes5040050

Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X, Kydd-Coutts, Megam, Varney, Ellie-May, Rosselli, Olivia and Gray, Nicola S. ORCID: https://orcid.org/0000-0003-3849-8118 2024. Visual spatial attention to sexual stimuli. Current Psychology 43 , pp. 27930-27943. 10.1007/s12144-024-06438-y

Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X, Gray, Nicola S. ORCID: https://orcid.org/0000-0003-3849-8118 and Uzzell, Katie S. 2024. Implicit sexual cognitions in women with ambiphilic sexual attractions: A comparison to androphilic and gynephilic women. Archives of Sexual Behavior 53 , pp. 141-152. 10.1007/s10508-023-02727-y

Gray, Nicola S. ORCID: https://orcid.org/0000-0003-3849-8118, Davies, Helen, Brad, Rhodri and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2023. Reducing sickness absence and stigma due to mental health difficulties: a randomised control treatment trial (RCT) of a low intensity psychological intervention and stigma reduction programme for common mental disorder (Prevail). BMC Public Health 23 (1) , 1324. 10.1186/s12889-023-16200-x

Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X, Mitchell, Ella, Ojo, Sarah K., Preedy-Lunt, Rebecca and Gray, Nicola S. 2023. Spatial attention to emotional images and psychopathic personality traits. Journal of Psychopathology and Behavioral Assessment 45 , pp. 333-345. 10.1007/s10862-022-10012-w

Gray, Nicola S,, Davies, Helen and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2023. Reducing stigma and increasing workplace productivity due to mental health difficulties in a large government organization in the UK: a protocol for a randomised control treatment trial (RCT) of a low intensity psychological intervention and stigma reduction programme for common mental disorder (Prevail). BMC Public Health 20 , 896. 10.1186/s12889-020-09054-0

Simkiss, Nicola, Gray, Nicola, Kemp, Andrew, Dunne, Chris and Snowden, Robert ORCID: https://orcid.org/0000-0001-9900-480X 2023. A randomised controlled trial evaluating the Guide Cymru Mental Health Literacy intervention programme in Year 9 (age 13-14) school pupils in Wales. BMC Public Health 23 , 1062. 10.1186/s12889-023-15922-2

Pink, Jennifer, Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X and Gray, Nicola S. 2023. The implicit measurement of psychopathy. Journal of Research in Personality 103 , 104339. 10.1016/j.jrp.2023.104339

Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X, Gray, Nicola S., Rollings, Jasmine and Uzzell, Katie S. 2023. Automatic attention to sexual images of men and women in androphilic, ambiphilic, and gynephilic women. Journal of Bisexuality 23 (2) , pp. 170-185. 10.1080/15299716.2023.2183923

Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X, Tiley, Olivia and Gray, Nicola S. ORCID: https://orcid.org/0000-0003-3849-8118 2023. The Cardiff self‐injury inventory (English version): convergent validity and psychometric properties. Health Science Reports 6 (1) , e1028. 10.1002/hsr2.1028

Knowles, James R, Gray, Nicola S., John, Ann, O’Connor, Christopher, Pink, Jennifer, Simkiss, Nicola J. and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2023. Mental wellbeing and psychological distress in the UK during the COVID-19 pandemic: a comparison across time. Advances in Mental Health 21 (1) , pp. 30-42. 10.1080/18387357.2022.2039072

Walters, Thomas, Simkiss, Nicola, Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X and Gray, Nicola S. 2022. Secondary school students’ perception of the online teaching experience during COVID-19: The impact on mental wellbeing and specific learning difficulties. British Journal of Educational Psychology 92 (3) , pp. 843-860. 10.1111/bjep.12475

Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X, Amad, Suzana, Morley, Emily, Butkute, Nora, Budd, Rick, Jackson, Lindsay, Abbasi, Naader and Gray, Nicola S. 2022. Explicit and implicit self-esteem and aggression: Differential effects of agency and communion. Journal of Interpersonal Violence 37 (11-12) , NP10036-NP10059. 10.1177/0886260520985490

Docksey, Alys E., Gray, Nicola S., Davies, Helen B., Simkiss, Nicola and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2022. The stigma and self-stigma scales for attitudes to mental health problems: psychometric properties and its relationship to mental health problems and absenteeism. Health Psychology Research 10 , 2. 10.52965/001c.35630

Gray, Nicola S., McKinnon, Aimee and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2022. A reduction in the pupil’s response to affective sounds in psychopathy and related personality traits. Physiological Reports 10 (6) , e15235. 10.14814/phy2.15235

Pink, Jennifer, Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X, Price, Menna J, Kocsondi, Andrea, Lawrence, Chloe, Stephens, Paige, White, Lauren and Gray, Nicola S. 2022. Refining the relationship between psychopathy, aggression, and rule-breaking by gender: A comparison of the Triarchic and Septarchic models of psychopathy. Personality and Individual Differences 185 , 111282. 10.1016/j.paid.2021.111282

Knowles, James R., Gray, Nicola S., O’Connor, Chris, Pink, Jennifer, Simkiss, Nicola J. and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2022. The role of hope and resilience in protecting against suicidal thoughts and behaviors during the Covid-19 pandemic. Archives of Suicide Research 26 (3) , pp. 1487-1504. 10.1080/13811118.2021.1923599

Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X, Frongillo Juric, Altea, Leach, Robyn, McKinnon, Aimee and Gray, Nicola S. 2022. Automatic processing of emotional images and psychopathic personality traits. Cognition and Emotion 36 (5) , pp. 821-835. 10.1080/02699931.2022.2054780

Pink, Jennifer, Gray, Nicola S., O'Connor, Chris, Knowles, James R., Simkiss, Nicola J. and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2021. Psychological distress and resilience in first responders and health care workers during the COVID?19 pandemic. Journal of Occupational and Organizational Psychology 94 (4) , pp. 789-807. 10.1111/joop.12364

Amad, Suzana, Gray, Nicola S. and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2021. Self-esteem, narcissism, and aggression: different types of self-esteem predict different types of aggression. Journal of Interpersonal Violence 36 (23-24) , pp. 13296-13313. 10.1177/0886260520905540

Simkiss, Nicola J, Gray, Nicola S., Dunne, Chris and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2021. Development and psychometric properties of the Knowledge and Attitudes to Mental Health Scales (KAMHS): a psychometric measure of Mental Health Literacy in children and adolescents. BMC Pediatrics 21 , 508. 10.1186/s12887-021-02964-x

Gray, Nicola, Blumenthal, Stephen, Schuker, Richard, Wood, Heather, Fonagy, Peter and Snowden, Robert ORCID: https://orcid.org/0000-0001-9900-480X 2021. The triarchic model of psychopathy and antisocial behavior: results from an offender population with personality disorder. Journal of Interpersonal Violence 36 (17-18) , NP9130-NP9152. 10.1177/0886260519853404

Gray, Nicola S., Knowles, James R. P., George, Danielle M., Harvey, Alex, Powell, Rachel, Vazirian-Zadeh, Mehrnaz, Wansing, Carlotta M. and Snowden, Robert H. ORCID: https://orcid.org/0000-0001-9900-480X 2021. Explicit and implicit hopelessness and self-injury. Suicide and Life-Threatening Behavior 51 (3) , pp. 606-615. 10.1111/sltb.12743

Gray, Nicola S., John, Ann, McKinnon, Aimee, Raybould, Stephanie, Knowles, James and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2021. Structured professional judgment to assist the evaluation and safety planning of suicide risk: The Risk of Suicide Protocol (RoSP). Frontiers in Psychiatry 12 , 607120. 10.3389/fpsyt.2021.607120

Roy, Sandeep, Vize, Colin, Uzieblo, Kasia, van Dongen, Josanne D. M., Miller, Joshua, Lynam, Donald, Brazil, Inti, Yoon, Dahlnym, Mokros, Andreas, Gray, Nicola S., Snowden, Robert ORCID: https://orcid.org/0000-0001-9900-480X and Neumann, Craig S. 2021. Triarchic or septarchic?—uncovering the Triarchic Psychopathy Measure’s (TriPM) structure. Personality Disorders: Theory, Research, and Treatment 12 (1) , pp. 1-15. 10.1037/per0000392

Roy, Sandeep, Vize, Colin, Uzieblo, Kasia, van Dongen, Josanne D. M., Miller, Joshua D., Lynam, Donald R., Brazil, Inti, Yoon, Dahlnym, Mokros, Andreas, Gray, Nicola S., Snowden, Robert ORCID: https://orcid.org/0000-0001-9900-480X and Neumann, Craig S. 2021. The perils of untested assumptions in theory testing: a reply to Patrick et al. (2020). Personality Disorders: Theory, Research, and Treatment 12 (1) , pp. 24-28. 10.1037/per0000461

Olver, Mark, Stockdale, Keira, Hare, Robert, Mokros, Andrea, Baskin-Sommers, Arielle, Brand, Eddy, Folino, Jorge, Gacono, Carl, Gray, Nicola, Kiehl, Kent, Knight, Raymond, Leon-Mayer, Elizabeth, Logan, Matt, Reid-Maloy, J., Roy, Sandeep, Salekin, Randy T., Snowden, Robert ORCID: https://orcid.org/0000-0001-9900-480X, Thomson, Nicholas, Tillem, Scott, Vittaco, Michael and Yoon, D. 2020. Reliability and validity of the psychopathy checklist-revised in the assessment of risk for institutional violence: a cautionary note on DeMatteo et al. (2020). Psychology, Public Policy, and Law 26 (4) , pp. 490-510. 10.1037/law0000256

Hare, Robert D., Olver, Mark, Stockdale, Keira C., Neumann, Craig S., Mokros, Andreas, Baskin-Sommers, Arielle, Brand, Eddy, Folino, Jorge, Gacono, Carl, Gray, Nicola, Khiel, Kent, Knight, Raymond, Leon-Mayer, Elizabeth, Logan, Matthew, Meloy, J. Reid, Roy, Sandeep, Salekin, Randall, Snowden, Robert ORCID: https://orcid.org/0000-0001-9900-480X, Thomson, Nicholas, Tillem, Scott, Vitacco, Michael and Yoon, Dahlnym 2020. The PCL-R and capital sentencing: a commentary on “Death is Different". Psychology, Public Policy, and Law 26 (4) , pp. 519-522. 10.1037/law0000290

Gray, Nicola S., O’Connor, Chris, Knowles, James, Pink, Jennifer, Simkiss, Nicola and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2020. The influence of the COVID-19 pandemic on mental wellbeing and psychological distress: impact upon a single country. Frontiers in Psychiatry 11 , 594115. 10.3389/fpsyt.2020.594115

Burley, Daniel T., Deriu, Valerio, Masin, Rhys, Gray, Nicola S. and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2020. Emotional modulation of the pupil in psychopathy: a test of the response modulation hypothesis. International Journal of Psychophysiology 155 , pp. 168-174. 10.1016/j.ijpsycho.2020.06.008

Mckinnon, Aimee I., Gray, Nicola S. and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2020. Enhanced emotional response to both negative and positive images in post-traumatic stress disorder: evidence from pupillometry. Biological Psychology 154 , 107922. 10.1016/j.biopsycho.2020.107922

Gray, Nicola S., Davies, Helen and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2020. Reducing stigma and increasing workplace productivity due to mental health difficulties in a large government organization in the UK: A protocol for a randomised control treatment trial (RCT) of a low intensity psychological intervention and stigma reduction programme for common mental disorder (Prevail). BMC Public Health 20 , 896. 10.1186/s12889-020-09054-0

Snowden, Robert J ORCID: https://orcid.org/0000-0001-9900-480X, Fitton, Ellen, McKinnon, Aimee and Gray, Nicola 2020. Sexual attraction to both genders in ambiphilic men: Evidence from implicit cognitions. Archives of Sexual Behavior 49 , pp. 503-515. 10.1007/s10508-019-01552-6

Simkiss, Nicola, Gray, Nicola S., Malone, Greg, Kemp, Andrew and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2020. Improving mental health literacy in Year 9 high school children across Wales: A protocol for a randomised control treatment trial (RCT) of a mental health literacy programme across an entire country. BMC Public Health 20 , 727. 10.1186/s12889-020-08736-z

Snowden, Robert ORCID: https://orcid.org/0000-0001-9900-480X, Holt, Jordan, Simkiss, Nicola, Smith, Aimee, Webb, Dan and Gray, Nicola S 2019. WARRN – a formulation-based risk assessment process: Its implementation and impact across a whole country. Journal of Mental Health Training, Education and Practice 14 (6) , pp. 399-410. 10.1108/JMHTEP-03-2019-0016

Gray, Nicola S., Tiller, Jacqui L. and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2019. WARRN - A formulation-based risk assessment procedure for Child and Adolescent Mental Health Services (CAMHS): The view of clinicians. Journal of Forensic Practice 21 (4) , pp. 228-239. 10.1108/JFP-06-2019-0025

Burley, Daniel, Gray, Nicola and Snowden, Robert ORCID: https://orcid.org/0000-0001-9900-480X 2019. Emotion modulation of the pupil response in psychopathy. Personality Disorders: Theory, Research, and Treatment. 10 (4) , pp. 365-375. 10.1037/per0000313

Blumenthal, Stephen, Gray, Nicola S., Shuker, Richard, Wood, Heather, Fonagy, Peter, Allonby, Miranda, Flynn, Alison, Takala, Tanja and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2019. Implicit measurement of violence-related cognitions. Psychology of Violence 9 (2) , pp. 235-243. 10.1037/vio0000194

Gray, Nicola S., Weidacker, Kathrin and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2019. Psychopathy and impulsivity: The relationship of psychopathy to different aspects of UPPS-P impulsivity. Psychiatry Research 272 , pp. 474-482. 10.1016/j.psychres.2018.12.155

Snowden, Robert ORCID: https://orcid.org/0000-0001-9900-480X, McKinnon, Aimee, Fitoussi, Julie and Gray, Nicola 2019. Pupillary responses to static images of men and women. A possible measure of sexual interest? Journal of Sex Research 56 (1) , pp. 74-84. 10.1080/00224499.2017.1394959

Weidacker, Kathrin, O'Farrell, Katherine, Gray, Nicola, Johnston, S. J. and Snowden, Robert ORCID: https://orcid.org/0000-0001-9900-480X 2017. Psychopathy and impulsivity: The relationship of the triarchic model of psychopathy to different forms of impulsivity in offenders and community participants. Personality and Individual Differences 114 , pp. 134-139.

Canning, Amy, Andrew, Elizabeth, Murphy, Rhian, Walker, Julian and Snowden, Robert ORCID: https://orcid.org/0000-0001-9900-480X 2017. Gender differences in the relationship between self-esteem and aggression in young people leaving care. Violence and Gender 4 (2) , pp. 49-54. 10.1089/vio.2017.0002

Weidacker, Kathrin, Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Boy, Frederic and Johnston, Stephen J. 2017. Response inhibition in the parametric Go/No-Go task in psychopathic offenders. Psychiatry Research 250 , pp. 256-263. 10.1016/j.psychres.2017.01.083

Burley, Daniel T., Gray, Nicola S. and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2017. As far as the eye can see: Relationship between psychopathic traits and pupil response to affective stimuli. PLoS ONE 12 (1) , e0167436. 10.1371/journal.pone.0167436

Snowden, Robert ORCID: https://orcid.org/0000-0001-9900-480X, Smith, Chloe and Gray, Nicola S 2017. Risk taking and the triarchic model of psychopathy. Journal of Clinical and Experimental Neuropsychology 39 (10) , pp. 988-1001. 10.1080/13803395.2017.1300236

Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X, O'Farrell, Katherine R., Burley, Daniel, Erichsen, Jonathan T. ORCID: https://orcid.org/0000-0003-1545-9853, Newton, Naomi V. and Gray, Nicola S. 2016. The pupil's response to affective pictures: Role of image duration, habituation, and viewing mode. Psychophysiology 53 (8) , pp. 1217-1223. 10.1111/psyp.12668

Kanters, T., Hornsveld, R. H. J., Nunes, K. L., Huijding, J., Zwets, A. J., Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X, Muris, P. and van Marle, H. J. C. 2016. Are child abusers sexually attracted to submissiveness? Assessment of sex-related cognition with the implicit association test. Sexual Abuse: A Journal of Research and Treatment 28 (5) , pp. 448-468. 10.1177/1079063214544330

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Curl, Catriona, Jobbins, Katherine, Lavington, Chloe and Gray, Nicola S. 2016. Automatic direction of spatial attention to male versus female stimuli: a comparison of heterosexual men and women. Archives of Sexual Behavior 45 (4) , pp. 843-853. 10.1007/s10508-015-0678-y

Gray, Nicola S. and Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X 2016. Psychopathy in women: Prediction of criminality and violence in UK and USA psychiatric patients resident in the community. Psychiatry Research 237 , pp. 339-343. 10.1016/j.psychres.2016.01.014

Gray, N. S., Raybould, S., McKinnon, Aimee and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2015. The Aggression and Vulnerablility Scale (AVS) for the measurement of inpatient behaviors: A demonstration of reliability. Austin Journal of Psychiatry and Behavioral Sciences 2 (3) , 1045.

Zwets, Almar J., Hornsveld, Ruud H. J., Muris, Peter, Huijding, Jorg, Kanters, Thijs, Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and van Marle, Hjalmar 2015. Implicit attitudes toward violence and their relation to psychopathy, aggression, and socially adaptive behaviors in forensic psychiatric inpatients. Journal of Forensic Psychiatry & Psychology 26 (5) , pp. 632-651. 10.1080/14789949.2015.1037331

Craig, Rebecca L., Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2013. Recalled parental bonding, current attachment, and the triarchic conceptualisation of psychopathy. Personality and Individual Differences 55 (4) , pp. 345-350. 10.1016/j.paid.2013.03.012

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 2013. Implicit sexual associations in heterosexual and homosexual women and men. Archives of Sexual Behavior 42 (3) , pp. 475-485. 10.1007/s10508-012-9920-z

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Craig, Rebecca L. and Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 2013. Detection and recognition of emotional expressions: Effects of traits of personality disorder and gender. Personality and Individual Differences 54 (2) , pp. 158-163. 10.1016/j.paid.2012.08.007

Tales, Andrea, Leonards, U., Bompas, Aline ORCID: https://orcid.org/0000-0002-6957-2694, Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Philips, M., Porter, G., Haworth, Jonathan, Wilcock, G. and Bayer, Antony ORCID: https://orcid.org/0000-0002-7514-248X 2012. Intra-individual reaction time variability in aMCI: A precursor to dementia? Journal of Alzheimer's Disease 32 (2) , pp. 457-466. 10.3233/JAD-2012-120505

Tales, Andrea, Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Phillips, Michelle, Haworth, Judy, Porter, Gillian, Wilcock, Gordon and Bayer, Antony James ORCID: https://orcid.org/0000-0002-7514-248X 2011. Exogenous phasic alerting and spatial orienting in mild cognitive impairment compared to healthy ageing: study outcome is related to target response. Cortex 47 (2) , pp. 180-190. 10.1016/j.cortex.2009.09.007

Fitzgerald, Suzanne, Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, Taylor, John and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2011. Risk factors for recidivism in offenders with intellectual disabilities. Psychology, Crime & Law 17 (1) , pp. 43-58. 10.1080/10683160903392293

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Craig, Rebecca L. and Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 2011. Indirect behavioral measures of cognition among sexual offenders. Journal of Sex Research 48 (2-3) , pp. 192-217. 10.1080/00224499.2011.557750

Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, Benson, Richard, Craig, Rebecca L., Davies, Huw, Fitzgerald, Suzanne, Huckle, Phillip, Maggs, Richard, Taylor, John, Trueman, Marianne, Williams, Tegwyn and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2011. The Short-Term Assessment of Risk and Treatability (START): A prospective sudy of inpatient behavior. International Journal of Forensic Mental Health 10 (4) , pp. 305-313. 10.1080/14999013.2011.631692

Tales, Andrea, Bayer, Antony ORCID: https://orcid.org/0000-0002-7514-248X, Haworth, Jonathan, Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Phillips, M. and Wilcock, G. 2011. Visual search in mild cognitive impairment: A longitudinal study. Journal of Alzheimer's Disease 24 (1) , pp. 151-160. 10.3233/JAD-2010-101818

Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, Taylor, John and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2011. Predicting violence using structured professional judgment in patients with different mental and behavioral disorders. Psychiatry Research 187 (1-2) , pp. 248-253. 10.1016/j.psychres.2010.10.011

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 2011. Impulsivity and psychopathy: Associations between the Barrett Impulsivity Scale and the Psychopathy Checklist revised. Psychiatry Research 187 (3) , pp. 414-417. 10.1016/j.psychres.2011.02.003

Copestake, Sonja, Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 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) , pp. 169-182. 10.1080/14789949.2010.545134

Morgan, Joanne E., Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2011. The relationship between psychopathy and impulsivity: A multi-impulsivity measurement approach. Personality and Individual Differences 51 (4) , pp. 429-434. 10.1016/j.paid.2011.03.043

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 and Taylor, John 2010. Risk Assessment for Future Violence in Individuals from an Ethnic Minority Group. International Journal of Forensic Mental Health 9 (2) , pp. 118-123. 10.1080/14999013.2010.501845

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 2010. Temperament and character as a function of psychopathy: relationships between the Psychopathy Checklist - Revised and the Temperament and Character Inventory in a sample of personality disordered serious or repeat offenders. Journal of Forensic Psychiatry & Psychology 21 (6) , pp. 815-833. 10.1080/14789949.2010.506617

Cvencek, Dario, Greenwald, Anthony G., Brown, Anthony S., Gray, Nicola S. and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2010. Faking of the Implicit Association Test is statistically detectable and partly correctable. Basic and Applied Social Psychology 32 (4) , pp. 302-314. 10.1080/01973533.2010.519236

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 2010. Implicit social cognition in forensic settings. Gawronski, B. and Payne, B. K., eds. Handbook of Implicit Social Cognition: Measurement, Theory, and Applications, New York: Guilford, pp. 522-534.

Freeman, Tom C. A. ORCID: https://orcid.org/0000-0002-5989-9183, Champion, Rebecca Anne, Sumnall, Jane H. and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2009. Do we have direct access to retinal image motion during smooth pursuit eye movements? Journal of Vision 9 (1) , 33. 10.1167/9.1.33

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, Taylor, John and Fitzgerald, Suzanne 2009. Assessing Risk of Future Violence Among Forensic Psychiatric Inpatients With the Classification of Violence Risk (COVR). Psychiatric Services 60 (11) , pp. 1522-1526. 10.1176/appi.ps.60.11.1522

Brown, Anthony, Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2009. Implicit Measurement of Sexual Associations in Child Sex Abusers: Role of Victim Type and Denial. Sexual Abuse: A Journal of Research and Treatment 21 (2) , pp. 166-180. 10.1177/1079063209332234

Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2009. The implicit association test as a measure of sexual interest. Thornton, D. and Laws, D. R., eds. Cognitive Approaches to the Assessment of Sexual Interest in Sexual Offenders, Chichester: Wiley-Blackwell, pp. 101-124.

Andrew, E. M., Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2008. The relationship between trauma and beliefs about hearing voices: a study of psychiatric and non-psychiatric voice hearers. Psychological Medicine 38 (10) , pp. 1409-1417. 10.1017/S003329170700253X

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Wichter, Jan and Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 2008. Implicit and explicit measurements of sexual preference in gay and heterosexual men: a comparison of priming techniques and the Implicit Association Task. Archives of Sexual Behavior 37 (4) , pp. 558-565. 10.1007/s10508-006-9138-z

Gray, Nicola S., Taylor, John and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2008. Predicting violent reconvictions using the HCR-20. British Journal of Psychiatry 192 (5) , pp. 384-387. 10.1192/bjp.bp.107.044065

Fitzgerald, Suzanne, Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 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 (4) , pp. 323-330. 10.1111/j.1468-3148.2006.00349.x

Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, Fitzgerald, Suzanne, Taylor, John, MacCulloch, Malcolm J. and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2007. Predicting future reconviction in offenders with intellectual disabilities: The predictive efficacy of VRAG, PCL-SV, and the HCR-20. Psychological Assessment 19 (4) , pp. 474-479. 10.1037/1040-3590.19.4.474

Evans, Lisa Helen ORCID: https://orcid.org/0000-0002-3874-4676, Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2007. A new continuous within-participants latent inhibition task: Examining associations with schizotypy dimensions, smoking status and gender. Biological Psychology 74 (3) , pp. 365-373. 10.1016/j.biopsycho.2006.09.007

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, Taylor, John and MacCulloch, M. J. 2007. Actuarial prediction of violent recidivism in mentally disordered offenders. Psychological Medicine 37 (11) , pp. 1539-1549. 10.1017/S0033291707000876

Walters, Glenn D., Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, Jackson, Rebecca L., Sewell, Kenneth W., Rogers, Richard, Taylor, John and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2007. A taxometric analysis of the Psychopathy Checklist: Screening Version (PCL:SV): Further evidence of dimensionality. Psychological Assessment 19 (3) , pp. 330-339. 10.1037/1040-3590.19.3.330

Evans, Lisa Helen ORCID: https://orcid.org/0000-0002-3874-4676, Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2007. Reduced P50 suppression is associated with the cognitive disorganisation dimension of schizotypy. Schizophrenia Research 97 (1-3) , pp. 152-162. 10.1016/j.schres.2007.07.019

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and Kavanagh, Emma 2006. Motion perception in the ageing visual system: Minimum motion, motion coherence, and speed discrimination thresholds. Perception 35 (1) , pp. 9-24. 10.1068/p5399

Tales, Andrea, Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Brown, Michelle and Wilcock, Gordon 2006. Alerting and orienting in Alzheimer's disease. Neuropsychology 20 (6) , pp. 752-756. 10.1037/0894-4105.20.6.752

Tales, Andrea and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2006. Alerting and orienting in Alzheimer's disease: Are they interdependent? Reply to Festa et al. (2006). Neuropsychology 20 (6) , pp. 761-762. 10.1037/0894-4105.20.6.761

Zhaoping, Li and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 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 (4-8) , pp. 911-933. 10.1080/13506280500196035

Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, Brown, Anthony, MacCulloch, Malcolm J., Smith, Jennifer and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2005. An implicit test of associations between children and sex in pedophiles. Journal of Abnormal Psychology 114 (2) , pp. 304-308. 10.1037/0021-843X.114.2.304

Tales, Andrea, Haworth, Judy Margaret, Nelson, Sara, Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and Wilcock, Gordon 2005. Abnormal visual search in mild cognitive impairment and Alzheimer's disease. Neurocase 11 (1) , pp. 80-84. 10.1080/13554790490896974

Tales, Andrea, Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Haworth, Judy Margaret and Wilcock, Gordon 2005. Abnormal spatial and non-spatial cueing effects in mild cognitive impairment and Alzheimer's disease. Neurocase 11 (1) , pp. 85-92. 10.1080/13554790490896983

Evans, Lisa Helen ORCID: https://orcid.org/0000-0002-3874-4676, Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2005. Prepulse inhibition of startle and its moderation by schizotypy and smoking. Psychophysiology 42 (2) , pp. 223-231. 10.1111/j.1469-8986.2005.00280.x

Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2005. The relevance of irrelevance to schizophrenia. Neuroscience & Biobehavioral Reviews 29 (6) , pp. 989-999. 10.1016/j.neubiorev.2005.01.006

Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, MacCulloch, Sophie, Phillips, Helen, Taylor, John and MacCulloch, Malcolm 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:SV, and OGRS. Journal of Consulting and Clinical Psychology 72 (3) , pp. 523-530. 10.1037/0022-006X.72.3.523

Evans, Lisa Helen ORCID: https://orcid.org/0000-0002-3874-4676, Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2004. Facilitation and reduction of prepulse inhibition: Relationships to the positive and negative dimensions of psychometric schizotypy [Abstract]. Schizophrenia Research 67 (S1) , pp. 127-128. 10.1016/j.schres.2003.10.001

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Gray, Nicola ORCID: https://orcid.org/0000-0003-3849-8118, Smith, Jennifer, Morris, Mark and MacCulloch, Malcolm 2004. Implicit affective associations to violence in psychopathic murderers. Journal of Forensic Psychiatry & Psychology 15 (4) , pp. 620-641. 10.1080/14789940412331313377

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and Freeman, Thomas Charles Augustus ORCID: https://orcid.org/0000-0002-5989-9183 2004. The visual perception of motion. Current Biology 14 (19) , R828-R831. 10.1016/j.cub.2004.09.033

Freeman, Tom C. A. ORCID: https://orcid.org/0000-0002-5989-9183, Sumnall, Jane H. and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2003. The extra-retinal motion aftereffect. Journal of Vision 3 (11) , pp. 771-779. 10.1167/3.11.11

Tales, Andrea, Muir, Janice L., Jones, Roy, Bayer, Antony James ORCID: https://orcid.org/0000-0002-7514-248X and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2003. The effects of saliency and task difficulty on visual search performance in ageing and Alzheimer's disease. Neuropsychologia 42 (3) , pp. 335-345. 10.1016/j.neuropsychologia.2003.08.002

Sumnall, Jane H., Freeman, Tom C. A. ORCID: https://orcid.org/0000-0002-5989-9183 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2003. Optokinetic potential and the perception of head-centred speed. Vision Research 43 (16) , pp. 1709-1718. 10.1016/S0042-6989(03)00254-2

Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, McGleish, Andrew, Snowden, Robert J. ORCID: https://orcid.org/0000-0001-9900-480X and Timmons, David 2003. Prediction of violence and self-harm in mentally disordered offenders: a prospective study of the efficacy of HCR-20, PCL-R, and psychiatric symptomology. Journal of Consulting and Clinical Psychology 71 (3) , pp. 443-451. 10.1037/0022-006X.71.3.443

Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, MacCulloch, Malcolm J., Smith, Jennifer, Morris, Mark and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2003. Forensic psychology: Violence viewed by psychopathic murderers. Nature 423 (6939) , pp. 497-498. 10.1038/423497a

Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, Carman, Nicole G., Rogers, Paul E., MacCulloch, Malcolm J., Hayward, Peter and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2003. Post-traumatic stress disorder caused in mentally disordered offenders by the committing of a serious violent or sexual offence. Journal of Forensic Psychiatry & Psychology 14 (1) , pp. 27-43. 10.1080/1478994031000074289

Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Peoples, Michelle, Hemsley, David R and Gray, Jeffrey A 2003. A demonstration of within-subjects latent inhibition in the human: limitations and advantages. Behavioural Brain Research 138 (1) , pp. 1-8. 10.1016/S0166-4328(02)00181-X

Tales, Andrea, Muir, Janice L., Bayer, Antony James ORCID: https://orcid.org/0000-0002-7514-248X, Jones, R. and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2002. Phasic visual alertness in Alzheimer's disease and ageing. NeuroReport 13 (18) , pp. 2557-2560.

Ansari, Ejaz A., Morgan, James Edwards ORCID: https://orcid.org/0000-0002-8920-1065 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2002. Psychophysical characterisation of early functional loss in glaucoma and ocular hypertension. British Journal of Ophthalmology 86 (10) , pp. 1131-1135. 10.1136/bjo.86.10.1131

Ansari, Ejaz A., Morgan, James Edwards ORCID: https://orcid.org/0000-0002-8920-1065 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2002. Glaucoma: squaring the psychophysics and neurobiology. British Journal of Ophthalmology 86 (7) , pp. 823-826. 10.1136/bjo.86.7.823

Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, Pickering, A. D., Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Hemsley, D. R. and Gray, J. A. 2002. The partial reinforcement extinction effect in humans: effects of schizophrenia, schizotypy and low doses of amphetamine. Behavioural Brain Research 133 (2) , pp. 333-342. 10.1016/S0166-4328(02)00019-0

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2002. Visual attention to color: parvocellular guidance of attentional resources? Psychological Science 13 (2) , pp. 180-184. 10.1111/1467-9280.00433

Tales, Andrea, Muir, Janice L., Bayer, Antony James ORCID: https://orcid.org/0000-0002-7514-248X and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2002. Spatial shifts in visual attention in normal ageing and dementia of the Alzheimer type. Neuropsychologia 40 (12) , pp. 2000-2012. 10.1016/S0028-3932(02)00057-X

Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, Fernandez, Michelle, Williams, Jayne, Ruddle, Roy Allan and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2002. Which schizotypal dimensions abolish latent inhibition? British Journal of Clinical Psychology 41 (3) , pp. 271-284. 10.1348/014466502760379136

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2001. Contrast gain mechanism or transient channel? Why the effects of a background pattern alter over time. Vision Research 41 (15) , pp. 1879-1883. 10.1016/S0042-6989(01)00110-9

Ansari, Ejaz A., Morgan, James Edwards ORCID: https://orcid.org/0000-0002-8920-1065 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2001. Diffuse loss of contrast sensitivity in early glaucoma [Abstract]. Investigative Ophthalmology & Visual Science 42 (4) , S559.

White, J. L., Ruddle, Roy A., Howes, A., Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Savage, Justin C. D. ORCID: https://orcid.org/0000-0002-5123-3475 and Jones, Dylan Marc ORCID: https://orcid.org/0000-0001-8783-5542 2001. Eyes in the sky: Human factors and uninhabited air vehicles. Journal of Defence Science 6 , pp. 88-94.

Gray, Nicola Susan ORCID: https://orcid.org/0000-0003-3849-8118, Williams, Jayne, Fernandez, Michelle, Ruddle, Roy Allan, Good, Mark Andrew ORCID: https://orcid.org/0000-0002-1824-1203 and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2001. Context dependent latent inhibition in adult humans. Quarterly Journal of Experimental Psychology. B: Comparative and Physiological Psychology 54 (3) , pp. 233-245. 10.1080/713932760

Doyle, M. C. and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2001. Identification of visual stimuli is improved by accompanying auditory stimuli: The role of eye movements and sound location. Perception 30 (7) , pp. 795-810. 10.1068/p3126

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Willey, Jennifer and Muir, Janice L. 2001. Visuospatial attention: the role of target contrast and task difficulty when assessing the effects of cues. Perception 30 (8) , pp. 983-991. 10.1068/p3068

Blakemore, Mark R. and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2000. Textured backgrounds alter perceived speed. Vision Research 40 (6) , pp. 629-638. 10.1016/S0042-6989(99)00214-X

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and Verstraten, Frans A. J. 2000. Reply to Grunewald [Two directions at the same location?][Letter]. Trends in Cognitive Sciences 4 (3) , pp. 77-78. 10.1016/S1364-6613(99)01439-4

Brawn, Peter T. and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 2000. Attention to overlapping objects: detection and discrimination of luminance changes. Journal of Experimental Psychology: Human Perception and Performance 26 (1) , pp. 342-358. 10.1037/0096-1523.26.1.342

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and Verstraten, Frans A. J. 1999. Motion transparency: making models of motion perception transparent. Trends in Cognitive Sciences 3 (10) , pp. 369-377. 10.1016/S1364-6613(99)01381-9

Brawn, P. and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 1999. Can one pay attention to a particular color? Perception & Psychophysics 61 (5) , pp. 860-873. 10.3758/BF03206902

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and Edmunds, Robert 1999. Colour and polarity contributions to global motion perception. Vision Research 39 (10) , pp. 1813-1822. 10.1016/S0042-6989(98)00201-6

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 1999. Visual perception: Here's mud in your mind's eye. Current Biology 9 (9) , R336-R337. 10.1016/S0960-9822(99)80207-3

Blakemore, M. R. and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 1999. The effect of contrast upon perceived speed: a general phenomenon? Perception 28 (1) , pp. 33-48. 10.1068/p2722

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and Rossiter, Melissa C. 1999. Stereoscopic depth cues can segment motion information. Perception 28 (2) , pp. 193-201. 10.1068/p2735

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 1998. Shifts in perceived position following adaptation to visual motion. Current Biology 8 (24) , pp. 1343-1345. 10.1016/S0960-9822(07)00567-2

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 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 (5) , pp. 1354-1367. 10.1037/0096-1523.24.5.1354

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and Hammett, Stephen T. 1998. The effects of surround contrast on contrast thresholds, perceived contrast and contrast discrimination. Vision Research 38 (13) , pp. 1935-1945. 10.1016/S0042-6989(97)00379-9

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Stimpson, Nicola and Ruddle, Roy A. 1998. Speed perception fogs up as visibility drops [Letter]. Nature 392 (6675) , p. 450. 10.1038/33049

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and Milne, A. B. 1997. Phantom motion aftereffects - Evidence of detectors for the analysis of optic flow. Current Biology 7 (10) , pp. 717-722. 10.1016/S0960-9822(06)00329-0

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and Milne, Alan B. 1996. The effects of adapting to complex motions: position invariance and tuning to spiral motions. Journal of Cognitive Neuroscience 8 (5) , pp. 435-452. 10.1162/jocn.1996.8.5.435

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X and Hammett, Stephen T. 1996. Spatial frequency adaptation: threshold elevation and perceived contrast. Vision Research 36 (12) , pp. 1797-1809. 10.1016/0042-6989(95)00263-4

Hammett, Stephen T. and Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X 1995. The effect of contrast adaptation on briefly presented stimuli. Vision Research 35 (12) , pp. 1721-1725. 10.1016/0042-6989(94)00283-R

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Ullrich, Dieter and Bach, Michael 1995. Isolation and characteristics of a steady-state visually-evoked potential in humans related to the motion of a stimulus. Vision Research 35 (10) , pp. 1365-1373. 10.1016/0042-6989(95)98716-M

Snowden, Robert Jefferson ORCID: https://orcid.org/0000-0001-9900-480X, Hess, Robert F. and Waugh, Sarah J. 1995. The processing of temporal modulation at different levels of retinal illuminance. Vision Research 35 (6) , pp. 775-789. 10.1016/0042-6989(94)00158-I