CHRISTMAS D. Realistic Psychiatry. Presented at Royal College of Psychiatrists in Scotland General Adult & Liaison Joint Faculty Conference: 'Resilience in adversity'. Edinburgh, UK; 7 June 2023.

CHRISTMAS D. When is Enough ECT Enough? Presented at SEAN ECT Professionals Education Day 2023. Online meeting; 23 November 2023.

MÜNCHENBERG PS, JOYCE EM, MATTHEWS K, CHRISTMAS D, ZRINZO L. Stereotactic Radiofrequency Ablation for Treatment-Refractory Depression: A Systematic Review and Meta-Analysis. Brain Sciences. 2022; 12(10): 1379. https://doi.org/10.3390/brainsci12101379

SPEDDING M, SEBBAN C, JAY TM, ROCHER C, TESOLIN-DECROS B, CHAZOT P, SCHENKER E, SZÉNÁSI G, LÉVAY GI, MEGYERI K, BARKÓCZY J, HÁRSING LG, THOMSON I, CUNNINGHAM MO, WHITTINGTON MA, ETHERINGTON L-A, LAMBERT JJ, ANTONI FA, GACSÁLYI I. Phenotypical Screening on Neuronal Plasticity in Hippocampal-Prefrontal Cortex Connectivity Reveals an Antipsychotic with a Novel Profile. Cells. 2022; 11(7): 1181. https://doi.org/10.3390/cells11071181

ETHERINGTON L-A, MATTHEWS K, AKRAM H. New Directions for Surgical Ablation Treatment of Obsessive Compulsive Disorder. Current Topics in Behavioral Neurosciences. 2021; 49: 437-460. https://doi.org/10.1007/7854_2020_207

BUICK R, COCKBURN C, CHRISTMAS D. Applying a transdiagnostic approach to treating ritualised behaviour in specialised practice. Presented at EABCT 2021 Congress. Belfast, Northern Ireland; 8 - 11 September 2021.

ELAWAD A, PALFI R, CHRISTMAS D. Predicting Outcomes For ECT: Findings From A Large, Multi-decade Retrospective Audit. Presented at Annual ECT and Neuromodulation Conference. Online; 18-19 November 2021.

PALFI R, ELAWAD A, CHRISTMAS D. Relationship Between Stimulus Dosing, Total Dose, and Clinical Outcomes: Findings From a Large, Multi-Decade Retrospective Audit. Presented at Annual ECT and Neuromodulation Conference. Online; 18-19 November 2021.

WALKER KJ, CHRISTMAS D. Responding To COVID-19: Lessons Learned From Adapting a Specialist OCD Service. Presented at EABCT 2021 Congress. Belfast, Northern Ireland; 8 - 11 September 2021.

HIGGINS C, SMITH BH, MATTHEWS K. Comparison of psychiatric comorbidity in treatment-seeking, opioid-dependent patients with versus without chronic pain. Addiction. 2020; 115(2): 249-258. https://doi.org/10.1111/add.14768

BALDACCHINO A, TOLOMEO S, BALFOUR DJ, MATTHEWS K. Profiles of visuospatial memory dysfunction in opioid-exposed and dependent populations. Psychological Medicine. 2019; 49(7): 1174-1184. http://doi.org/10.1017/S0033291718003318

HIGGINS C, SMITH BH, MATTHEWS K. Evidence of opioid-induced hyperalgesia in clinical populations after chronic opioid exposure: a systematic review and meta-analysis. British Journal of Anaesthesia. 2019; 122(6): e114-e126. https://doi.org/10.1016/j.bja.2018.09.019

LOZANO AM, LIPSMAN N, BERGMAN H, BROWN P, CHABARDES S, CHANG JW, MATTHEWS K, MCINTYRE CC, SCHLAEPFER TE, SCHULDER M, TEMEL Y, VOLKMANN J, KRAUSS JK. Deep brain stimulation: current challenges and future directions. Nature Reviews Neurology. 2019; 15(3): 148-160. https://doi.org/10.1038/s41582-018-0128-2

MATHER A, CHRISTMAS D, O’CONNOR K. The Inference-Based Approach: An alternative to Exposure and Response Prevention for OCD? [Poster] Presented at 9th World Congress of Behavioural and Cognitive Therapies 2019. Berlin; 17-20 July 2019.

TYAGI H, APERGIS-SCHOUTE AM, AKRAM H, FOLTYNIE T, LIMOUSIN P, DRUMMOND LM, FINEBERG NA, MATTHEWS K, JAHANSHAHI M, ROBBINS TW, SAHAKIAN BJ, ZRINZO L, HARIZ M, JOYCE EM. A Randomised Trial Directly Comparing Ventral Capsule and Anteromedial Subthalamic Nucleus Stimulation in Obsessive Compulsive Disorder: Clinical and Imaging Evidence for Dissociable Effects. Biological Psychiatry. 2019; 85(9): 726-734. https://doi.org/10.1016/j.biopsych.2019.01.017

ANTTILA V, BULIK-SULLIVAN B, FINUCANE HK, et al. Analysis of shared heritability in common disorders of the brain. Science. 2018; 360(6395). http://doi.org/10.1126/science.aap8757

HIGGINS C, SMITH BH, MATTHEWS K. Incidence of iatrogenic opioid dependence or abuse in patients with pain who were exposed to opioid analgesic therapy: a systematic review and meta-analysis. British Journal of Anaesthesia. 2018; 120(6): 1335-1344. http://doi.org/10.1016/j.bja.2018.03.009

HIGGINS C, SMITH BH, MATTHEWS K. Substance misuse in patients who have comorbid chronic pain in a clinical population receiving methadone maintenance therapy for the treatment of opioid dependence. Drug and Alcohol Dependence. 2018; 193: 131-136. http://doi.org/10.1016/j.drugalcdep.2018.08.038

MCALLISTER-WILLIAMS RH, CHRISTMAS DMB, CLEARE AJ, CURRIE A, GLEDHILL J, INSOLE L, MALIZIA AL, MCGEEVER M, MORRISS R, ROBINSON LJ, SCOTT M, STOKES PRA, TALBOT PS, YOUNG AH. Multiple-therapy-resistant major depressive disorder: a clinically important concept. British Journal of Psychiatry. 2018; 212(5): 274-278. http://dx.doi.org/10.1192/bjp.2017.33

TOLOMEO S, MATTHEWS K, STEELE D, BALDACCHINO A. Compulsivity in opioid dependence. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 2018; 81: 333-339. http://doi.org/10.1016/j.pnpbp.2017.09.007

ANTTILA V, BULIK-SULLIVAN B, FINUCANE HK, WALTERS R, BRAS J, DUNCAN L, ESCOTT-PRICE V, FALCONE G, GORMLEY P, MALIK R, PATSOPOULOS N, RIPKE S, WEI Z, YU D, LEE P, BREEN G, BULIK C, DALY M, DICHGANS M, FARAONE S, GUERREIRO R, HOLMANS P, KENDLER K, KOELEMAN B, MATHEWS C, SCHARF J, SKLAR P, WILLIAMS J, WOOD N, COTSAPAS C, PALOTIE A, SMOLLER J, SULLIVAN P, ROSAND J, CORVIN A, NEALE B. Analysis of shared heritability in common disorders of the brain. bioRxiv. 2017. http://biorxiv.org/content/early/2017/09/06/048991.abstract

BALDACCHINO A, ARMANYOUS M, BALFOUR DJK, HUMPHRIS G, MATTHEWS K. Neuropsychological functioning and chronic methadone use: A systematic review and meta-analysis. Neuroscience & Biobehavioral Reviews. 2017; 73: 23-38. https://doi.org/10.1016/j.neubiorev.2016.11.008

HOLTZHEIMER PE, HUSAIN MM, LISANBY SH, TAYLOR SF, WHITWORTH LA, MCCLINTOCK S, SLAVIN KV, BERMAN J, MCKHANN GM, PATIL PG, RITTBERG BR, ABOSCH A, PANDURANGI AK, HOLLOWAY KL, LAM RW, HONEY CR, NEIMAT JS, HENDERSON JM, DEBATTISTA C, ROTHSCHILD AJ, PILITSIS JG, ESPINOZA RT, PETRIDES G, MOGILNER AY, MATTHEWS K, PEICHEL D, GROSS RE, HAMANI C, LOZANO AM, MAYBERG HS. Subcallosal cingulate deep brain stimulation for treatment-resistant depression: a multisite, randomised, sham-controlled trial. Lancet Psychiatry. 2017; 4(11): 839-849. http://dx.doi.org/10.1016/S2215-0366(17)30371-1

WALKER KJ, CHRISTMAS DMB. Understanding challenges around implementation of specialist service recommendations for obsessive-compulsive disorder. Psychiatric Bulletin. 2017; 41(2): 121. http://dx.doi.org/10.1192/pb.41.2.121

CHRISTMAS DMB, SWEENEY A. Service user, patient, survivor or client…has the time come to return to ‘patient’? British Journal of Psychiatry. 2016; 209(1): 9-13. http://dx.doi.org/10.1192/bjp.bp.115.167221

RIDOUT N, DRITSCHEL B, MATTHEWS K, O'CARROLL R. Autobiographical memory specificity in response to verbal and pictorial cues in clinical depression. Journal of Behavior Therapy and Experimental Psychiatry. 2016; 51: 109-15. http://dx.doi.org/10.1016/j.jbtep.2016.01.002

TOLOMEO S, CHRISTMAS D, JENTZSCH I, JOHNSTON B, SPRENGELMEYER R, MATTHEWS K, DOUGLAS STEELE J. A causal role for the anterior mid-cingulate cortex in negative affect and cognitive control. Brain. 2016; 139(6): 1844-1854. http://dx.doi.org/10.1093/brain/aww069

TOLOMEO S, GRAY S, MATTHEWS K, STEELE JD, BALDACCHINO A. Multifaceted impairments in impulsivity and brain structural abnormalities in opioid dependence and abstinence. Psychological Medicine. 2016; 46(13): 2841-2853. http://dx.doi.org/10.1017/S0033291716001513

BALDACCHINO A, BALFOUR DJ, MATTHEWS K. Impulsivity and opioid drugs: differential effects of heroin, methadone and prescribed analgesic medication. Psychological Medicine. 2015; 45(6): 1167-1179. http://dx.doi.org/10.1017/S0033291714002189

CARSON AJ, STONE J, HANSEN CH, DUNCAN R, CAVANAGH J, MATTHEWS K, MURRAY G, SHARPE M. Somatic symptom count scores do not identify patients with symptoms unexplained by disease: a prospective cohort study of neurology outpatients. Journal of Neurology, Neurosurgery & Psychiatry. 2015; 86(3): 295-301. http://dx.doi.org/10.1136/jnnp-2014-308234

CHRISTMAS DMB, MATTHEWS K. Neurosurgical Treatments for Patients with Chronic, Treatment-Refractory Depression: A Retrospective, Consecutive, Case Series Comparison of Anterior Capsulotomy, Anterior Cingulotomy and Vagus Nerve Stimulation. Stereotactic and Functional Neurosurgery. 2015; 93(6): 387-392. http://dx.doi.org/10.1159/000439115

CLEARE A, PARIANTE CM, YOUNG AH, ANDERSON IM, CHRISTMAS D, COWEN PJ, DICKENS C, FERRIER IN, GEDDES J, GILBODY S, HADDAD PM, KATONA C, LEWIS G, MALIZIA A, MCALLISTER-WILLIAMS RH, RAMCHANDANI P, SCOTT J, TAYLOR D, UHER R. Evidence-based guidelines for treating depressive disorders with antidepressants: A revision of the 2008 British Association for Psychopharmacology guidelines. Journal of Psychopharmacology. 2015; 29(5): 459-525. http://dx.doi.org/10.1177/0269881115581093

FERNANDEZ-PUJALS AM, ADAMS MJ, THOMSON P, MCKECHANIE AG, BLACKWOOD DH, SMITH BH, DOMINICZAK AF, MORRIS AD, MATTHEWS K, CAMPBELL A, LINKSTED P, HALEY CS, DEARY IJ, PORTEOUS DJ, MACINTYRE DJ, MCINTOSH AM. Epidemiology and Heritability of Major Depressive Disorder, Stratified by Age of Onset, Sex, and Illness Course in Generation Scotland: Scottish Family Health Study (GS:SFHS). PLoS One. 2015; 10(11): e0142197. http://dx.doi.org/10.1371/journal.pone.0142197

FINEBERG NA, REGHUNANDANAN S, SIMPSON HB, PHILLIPS KA, RICHTER MA, MATTHEWS K, STEIN DJ, SAREEN J, BROWN A, SOOKMAN D. Obsessive-compulsive disorder (OCD): Practical strategies for pharmacological and somatic treatment in adults. Psychiatry Research. 2015; 227(1): 114-125. http://dx.doi.org/10.1016/j.psychres.2014.12.003

GRADIN VB, PEREZ A, MACFARLANE JA, CAVIN I, WAITER G, ENGELMANN J, DRITSCHEL B, POMI A, MATTHEWS K, STEELE JD. Abnormal brain responses to social fairness in depression: an fMRI study using the Ultimatum Game. Psychological Medicine. 2015; 45(06): 1241-1251. http://dx.doi.org/10.1017/S0033291714002347

JOHNSTON BA, COGHILL D, MATTHEWS K, STEELE JD. Predicting methylphenidate response in attention deficit hyperactivity disorder: a preliminary study. Journal of Psychopharmacology. 2015; 29(1): 24-30. http://dx.doi.org/10.1177/0269881114548438

JOHNSTON BA, STEELE JD, TOLOMEO S, CHRISTMAS D, MATTHEWS K. Structural MRI-Based Predictions in Patients with Treatment-Refractory Depression (TRD). PLoS One. 2015; 10(7): e0132958. http://dx.doi.org/10.1371/journal.pone.0132958

JOHNSTON BA, TOLOMEO S, GRADIN V, CHRISTMAS D, MATTHEWS K, STEELE JD. Failure of hippocampal deactivation during loss events in treatment-resistant depression. Brain. 2015; 138(Pt 9): 2766-76. http://dx.doi.org/10.1093/brain/awv177

MCKAY D, SOOKMAN D, NEZIROGLU F, WILHELM S, STEIN DJ, KYRIOS M, MATTHEWS K, VEALE D. Efficacy of cognitive-behavioral therapy for obsessive-compulsive disorder. Psychiatry Research. 2015; 225(3): 236-246. http://dx.doi.org/10.1016/j.psychres.2014.11.058

NETWORK AND PATHWAY ANALYSIS SUBGROUP OF PSYCHIATRIC GENOMICS CONSORTIUM. Psychiatric genome-wide association study analyses implicate neuronal, immune and histone pathways. Nature Neuroscience. 2015; 18(2): 199-209. http://dx.doi.org/10.1038/nn.3922

NUTT R, KIDD B, MATTHEWS K. Assessing the Adherence to Guidelines of Media Reporting of Suicide Using a Novel Instrument - the “Risk of Imitative Suicide Scale” (RISc). Suicide and Life-Threatening Behavior. 2015; 45(3): 360-375. http://dx.doi.org/10.1111/sltb.12137

Swan JS, MacVicar R, Christmas D, Durham R, Rauchhaus P, McCullough Jr JP, Matthews K. Cognitive Behavioural Analysis System of Psychotherapy (CBASP) for chronic depression: Clinical characteristics and six month clinical outcomes in an open case series. Journal of Affective Disorders 2014;152-154(1):268-276. http://dx.doi.org/10.1016/j.jad.2013.09.024

Sokunbi MO, Gradin VB, Waiter GD, Cameron GG, Ahearn TS, Murray AD, Steele DJ, Staff RT. Nonlinear complexity analysis of brain FMRI signals in schizophrenia. PLoS One 2014;9(5):e95146. http://dx.doi.org/10.1371/journal.pone.0095146

Nuttin B, Wu H, Mayberg H, Hariz M, Gabriëls L, Galert T, Merkel R, Kubu C, Vilela-Filho O, Matthews K, Taira T, Lozano AM, Schechtmann G, Doshi P, Broggi G, Régis J, Alkhani A, Sun B, Eljamel S, Schulder M, Kaplitt M, Eskandar E, Rezai A, Krauss JK, Hilven P, Schuurman R, Ruiz P, Chang JW, Cosyns P, Lipsman N, Voges J, Cosgrove R, Li Y, Schlaepfer T. Consensus on guidelines for stereotactic neurosurgery for psychiatric disorders [In Press]. Journal of Neurology, Neurosurgery & Psychiatry 2014. http://dx.doi.org/10.1136/jnnp-2013-306580

Nutt R, Kidd B, Matthews K. Assessing the Adherence to Guidelines of Media Reporting of Suicide Using a Novel Instrument—the “Risk of Imitative Suicide Scale” (RISc) [In Press]. Suicide and Life-Threatening Behavior 2014. http://dx.doi.org/10.1111/sltb.12137

Johnston BA, Mwangi B, Matthews K, Coghill D, Konrad K, Steele JD. Brainstem abnormalities in attention deficit hyperactivity disorder support high accuracy individual diagnostic classification [In Press]. Human Brain Mapping 2014. http://dx.doi.org/10.1002/hbm.22542

Gradin VB, Baldacchino A, Balfour D, Matthews K, Steele JD. Abnormal brain activity during a reward and loss task in opiate-dependent patients receiving methadone maintenance therapy. Neuropsychopharmacology 2014;39(4):885-894. http://dx.doi.org/10.1038/npp.2013.289

Coghill DR, Seth S, Matthews K. A comprehensive assessment of memory, delay aversion, timing, inhibition, decision making and variability in attention deficit hyperactivity disorder: advancing beyond the three-pathway models. Psychological Medicine 2014;44(9):1989-2001. http://dx.doi.org/10.1017/S0033291713002547

Hazari H, Christmas D, Matthews K. The clinical utility of different quantitative methods for measuring treatment resistance in major depression. Journal of Affective Disorders 2013;150(2):231-236.

Gradin VB, Waiter G, O'connor A, Romaniuk L, Stickle C, Matthews K, Hall J, Douglas Steele J. Salience network-midbrain dysconnectivity and blunted reward signals in schizophrenia. Psychiatry Research: Neuroimaging 2013;211(2):104-111.

Christmas D, Steele JD, Tolomeo S, Eljamel MS, Matthews K. Vagus nerve stimulation for chronic major depressive disorder: 12-month outcomes in highly treatment-refractory patients. Journal of Affective Disorders 2013;150(3):1221-1225.

Brydges NM, Whalley HC, Jansen MA, Merrifield GD, Wood ER, Lawrie SM, Wynne S-M, Day M, Fleetwood-Walker S, Steele D, Marshall I, Hall J, Holmes MC. Imaging Conditioned Fear Circuitry Using Awake Rodent fMRI. PLoS ONE 2013;8(1):e54197.

Christmas D, Gabriëls L. Deep Brain Stimulation in Obsessive Compulsive Disorders In: Eljamel S, Slavin K, editors. Neurostimulation: Principles and Practice. Chichester: Wiley-Blackwell; 2013. p. 82-88.

Christmas D. Are the conclusions supported by the evidence? British Journal of Psychiatry 2013;202(6):465.

Browne S, Christmas D, Steele JD, Eljamel MS, K. M. Other Brain Stimulation Treatments. In: Waite J, Easton A, editors. The ECT Handbook. 3rd ed. London: Royal College of Psychiatrists; 2013.

Mwangi B, Matthews K, Steele JD. Prediction of illness severity in patients with major depression using structural MR brain scans. Journal of Magnetic Resonance Imaging. 2012;35(1):64-71.

Mwangi B, Ebmeier KP, Matthews K, Douglas Steele J. Multi-centre diagnostic classification of individual structural neuroimaging scans from patients with major depressive disorder. Brain. 2012;135(5):1508-1521.

Christmas D, Eljamel MS, Butler S, Hazari H, MacVicar R, Steele JD, Livingstone A, Matthews K. Long term outcome of thermal anterior capsulotomy for chronic, treatment refractory depression. Journal of Neurology, Neurosurgery & Psychiatry 2011; 82:594-600

Sprengelmeyer R, Steele JD, Mwangi B, Kumar P, Christmas D, Milders M, Matthews K. The insular cortex and the neuroanatomy of major depression. Journal of Affective Disorders. 2011;133(1):120-127.

Rhodes SM, Riby DM, Matthews K, Coghill DR. Attention-deficit/hyperactivity disorder and Williams syndrome: shared behavioral and neuropsychological profiles. Journal of Clinical and Experimental Neuropsychology. 2011;33(1):147-156.

Gradin VB, Kumar P, Waiter G, Ahearn T, Stickle C, Milders M, Reid I, Hall J, Steele JD. Expected value and prediction error abnormalities in depression and schizophrenia. Brain. 2011;134(6):1751-1764.

Bajbouj M, Merkl A, Schlaepfer TE, Frick C, Zobel A, Maier W, O'Keane V, Corcoran C, Adolfsson R, Trimble M, Rau H, Hoff H-J, Padberg F, Müller-Siecheneder F, Audenaert K, van den Abbeele D, Matthews K, Christmas D, Eljamel S, Heuser I. Two-Year Outcome of Vagus Nerve Stimulation in Treatment-Resistant Depression. Journal of Clinical Psychopharmacology. 2010;30(3):273-281.

Christmas D. Recommended management of treatment-refractory depression. Prescriber. 2011;22(21):28-37.

Brodie J, Eljamel S. Evaluation of a neurosurgical robotic system to make accurate burr holes. International Journal of Medical Robotics and Computer Assisted Surgery. 2011;7(1):101-6.

Steele JD, Lawrie S. Neuroimaging. In: Johnstone E, Lawrie SM, Owens DC, Sharpe M, editors. Companion to Psychiatric Studies. Edinburgh: Churchill Livingstone; 2010.

Steele JD. Functional Neuroanatomy. In: Johnstone E, Lawrie SM, Owens DC, Sharpe M, editors. Companion to Psychiatric Studies. Edinburgh: Churchill Livingstone; 2010.

Christmas, D. M. B., Curran, S., Matthews, K., & Eljamel, M. S. (2009). Neurosurgery for mental disorder, vagus nerve stimulation, and deep brain stimulation. Psychiatry, 8(4), 139-143.

Steele, J. D., Christmas, D., Eljamel, M. S., & Matthews, K. (2008). Anterior Cingulotomy for Major Depression: Clinical Outcome and Relationship to Lesion Characteristics. Biological Psychiatry, 63(7), 670-677.

Matthews, K., & Christmas, D. (2008). Neurosurgery for Psychiatric Disorders. In M. G. Gelder, J. J. Lopez-Ibor Jr, N. C. Andreasen & J. Geddes (Eds.), Oxford Textbook of Psychiatry (2nd ed). Oxford: Oxford University Press.

Swan JS, Hull AM. The cognitive behavioural analysis system of psychotherapy: a new psychotherapy for chronic depression. Advances in Psychiatric Treatment 2007;13(6):458-469.

Christmas D. Functional neurosurgery for intractable mental disorder: long term effects on mental health, neuropsychological performance, social function, and quality of life (MD Thesis). Section of Psychiatry and Behavioural Sciences, University of Dundee; 2006.

Christmas D, Matthews K, McVicar R, Eljamel S, Houston G, Gilchrist J, Livingstone A. Functional neurosurgery for intractable mental disorder: long term effects on mental health, neuropsychological performance, social function and quality of life (CZG/2/223) . Edinburgh: Chief Scientist Office; 2007.

Ridout N, O'Carroll RE, Dritschel B, Christmas D, Eljamel M, Matthews K. Emotion recognition from dynamic emotional displays following anterior cingulotomy and anterior capsulotomy for chronic depression. Neuropsychologia. 2007;45(8):1735-1743.