Brian Hallahan

Senior Lecturer

Contact Details

Senior Lecturer
PSYCHIATRY
SCHOOL OF MEDICINE
NUI GALWAY

E: BRIAN.HALLAHAN@nuigalway.ie
 
researcher

Biography

Research Interests

My principal research interests include neuroimaging, health service research and the study of essential fatty acids (EFAs) in mental illness, on which my Doctor of Medicine thesis was based. I have been an applicant (co-applicant or lead applicant) for research grants totalling €974,923 to date, and have published 41 peer reviewed articles, many in high impact international journals. I am collaborating with colleagues from Trinity College Dublin, the Institute of Psychiatry, London, the University of Illinois, Chicago and the National Institute on Alcohol Abuse and Alcoholism, Maryland, at present.  A recent project examining the operation and effects of the Mental Health Act involves collaboration with interdisciplinary teams drawn from the National University of Ireland Galway School of Nursing and Midwifery, School of Law and Department of Philosophy as well as the School of Nursing and Midwifery in Trinity College Dublin and the Irish Advocacy Network. I have recently been awarded a grant from Stanley Treatment Trials for the investigation of omega-3 EFAs in bipolar disorder.  
                                        

Peer Reviewed Journals

  Year Publication
(2015) 'Progressive brain atrophy and cortical thinning in schizophrenia after commencing clozapine treatment'
Ahmed M, Cannon DM, Scanlon C, Holleran L, Schmidt H, McFarland J, Langan C, McCarthy P, Barker GJ, Hallahan B, McDonald C (2015) 'Progressive brain atrophy and cortical thinning in schizophrenia after commencing clozapine treatment'. Neuropsychopharmacology, [Details]
(2015) 'Psychiatric and psycho-social characteristics of suicide completers: a comprehensive evaluation of psychiatric case records and post-mortem findings'
Kielty J, VanLaar A, Davoren M, Conlon L, Hillick A, McDonald C, Hallahan B. (2015) 'Psychiatric and psycho-social characteristics of suicide completers: a comprehensive evaluation of psychiatric case records and post-mortem findings'. Irish Journal Of Psychological Medicine, 32 (2):167-176 [Details]
(2015) 'Clozapine induced stuttering: an estimate of prevalence in the West of Ireland'
Murphy R, Gallagher A, Sharma K, Ali T, Lewis E, Murray I, Hallahan B (2015) 'Clozapine induced stuttering: an estimate of prevalence in the West of Ireland'. Therapeutic Advances in Psychopharmacology, [Details]
(2015) 'Volume and shape analysis of subcortical brain structures and ventricles in euthymic bipolar I disorder'
• Quigley S, Scanlon C, Kilmartin L, Emsell L, Langan C, Hallahan B, Murray M, Waters C, Waldron M, Hehir S, Casey H, McDermot E, Ridge J, Kenney J, Nannery R, Ambati S, McCarthy P, Barker GJ, Cannon DM, McDonald CM. (2015) 'Volume and shape analysis of subcortical brain structures and ventricles in euthymic bipolar I disorder'. Psychiatry Research: Neuroimaging, [Details]
(2015) 'Delirious mania intractable to treatment'
O'Callaghan N, McDonald C, Hallahan B (2015) 'Delirious mania intractable to treatment'. Irish Journal Of Psychological Medicine, [Details]
(2015) 'Caregivers' perceptions of coercion in psychiatric hospital admission'
Ranieri V, Madigan K, Roche E, Bainbridge E, McGuinness D, Tierney K, Feeney L, Hallahan B, McDonald C, O'Donoghue B (2015) 'Caregivers' perceptions of coercion in psychiatric hospital admission'. Psychiatry Research, [Details]
(2014) 'An examination of childhood trauma in individuals attending adult mental health services'
Wota AP, Byrne C, Murray I, Neuner F, Nisar Z, Ofuafor T, Hallahan B. (2014) 'An examination of childhood trauma in individuals attending adult mental health services'. Irish Journal Of Psychological Medicine, 31 :259-269 [Details]
(2014) 'Response inhibition and serotonin in autism: a functional MRI study using acute tryptophan depletion'
Daly, E,Ecker, C,Hallahan, B,Deeley, Q,Craig, M,Murphy, C,Johnston, P,Spain, D,Gillan, N,Gudbrandsen, M,Brammer, M,Giampietro, V,Lamar, M,Page, L,Toal, F,Schmitz, N,Cleare, A,Robertson, D,Rubia, K,Murphy, DGM (2014) 'Response inhibition and serotonin in autism: a functional MRI study using acute tryptophan depletion'. Brain, 137 :2600-2610 [DOI] [Details]
(2014) 'Neuroimaging in Autism Spectrum Disorder'
Hallahan B, Janik K. (2014) 'Neuroimaging in Autism Spectrum Disorder'. Cutting Edge Progress in Psychiatry, 1 :56-63 [Details]
(2014) 'Clinical stability in the community associated with long-term approved leave under the Mental Health Act 2001'
Bainbridge E, Byrne F, Hallahan B, McDonald C. (2014) 'Clinical stability in the community associated with long-term approved leave under the Mental Health Act 2001'. Irish Journal Of Psychological Medicine, 31 (2):143-148 [Details]
(2014) 'Cortical thinning and caudate abnormalities in first episode psychosis and their association with clinical outcome'
Scanlon C, Anderson-Schmidt H, Kilmartin L, McInerney S, Kenney J, McFarland J, Waldron M, Ambati S, Fullard A, Logan S, Hallahan B, Barker GJ, Elliott MA, McCarthy P, Cannon DM, McDonald C (2014) 'Cortical thinning and caudate abnormalities in first episode psychosis and their association with clinical outcome'. Schizophrenia Research, [DOI] [ARAN Link] [Details]
(2013) 'Dementia in Down's syndrome: an MRI comparison with Alzheimer's disease in the general population'
Mullins, D,Daly, E,Simmons, A,Beacher, F,Foy, CML,Lovestone, S,Hallahan, B,Murphy, KC,Murphy, DG (2013) 'Dementia in Down's syndrome: an MRI comparison with Alzheimer's disease in the general population'. Journal of Neurodevelopmental Disorders, 5 [DOI] [Details]
(2013) 'Prevalence study of head shop drug useage in mental health services'
Lally J, Higaya Em Nisar Z, Bainbridge E, Hallahan B. (2013) 'Prevalence study of head shop drug useage in mental health services'. The Psychiatrist, 37 :44-48 [Details]
(2013) 'Becoming a consummate clinician - what every student, house officer and hospital practitioner needs to know: Book Review'
McMahon E, Hallahan B (2013) 'Becoming a consummate clinician - what every student, house officer and hospital practitioner needs to know: Book Review'. Irish Journal Of Psychological Medicine, 30 (2):160-161 [Details]
(2013) 'Psychosis improved dysphonia'
Murphy R, Hallahan B (2013) 'Psychosis improved dysphonia'. Bmj Case Reports, [Details]
(2013) 'Clinical focus: Bipolar affective disorder'
Kirwan P, Hallahan B (2013) 'Clinical focus: Bipolar affective disorder'. Hospital Doctor, 19 (8):15-19 [Details]
(2012) 'Fragile X syndrome: a pilot proton magnetic resonance spectroscopy study in premutation carriers'
Hallahan, BP,Daly, EM,Simmons, A,Moore, CJ,Murphy, KC,Murphy, DDG (2012) 'Fragile X syndrome: a pilot proton magnetic resonance spectroscopy study in premutation carriers'. Journal of Neurodevelopmental Disorders, 4 [DOI] [Details]
(2012) 'Fragile X Syndrome. A pilot Proton Magnetic Resonance Spectroscopy Study in Pre-mutation carriers'
Hallahan B, Daly E, Simmons A, Moore CJ, Murphy C, Murphy KC, Murphy DGM (2012) 'Fragile X Syndrome. A pilot Proton Magnetic Resonance Spectroscopy Study in Pre-mutation carriers'. Journal of Neurodevelopmental Disorders, [Details]
(2012) 'The occurrence of neurological symptoms in currently abstinent misusers of alcohol'
Khalily, MT,Hallahan, B (2012) 'The occurrence of neurological symptoms in currently abstinent misusers of alcohol'. Irish Journal Of Medical Science, 181 :473-477 [DOI] [Details]
(2012) 'Serotonin and the Neural Processing of Facial Emotions in Adults With Autism An fMRI Study Using Acute Tryptophan Depletion'
Daly, EM,Deeley, Q,Ecker, C,Craig, M,Hallahan, B,Murphy, C,Johnston, P,Spain, D,Gillan, N,Brammer, M,Giampietro, V,Lamar, M,Page, L,Toal, F,Cleare, A,Surguladze, S,Murphy, DGM (2012) 'Serotonin and the Neural Processing of Facial Emotions in Adults With Autism An fMRI Study Using Acute Tryptophan Depletion'. Archives Of General Psychiatry, 69 :1003-1013 [DOI] [Details]
(2012) 'Fragile X-associated disorders: a clinical overview'
Gallagher A, Hallahan B (2012) 'Fragile X-associated disorders: a clinical overview'. Journal Of Neurology, 259 (3):401-413 [Details]
(2012) 'Murphy CM, Deeley Q, Daly EM, Ecker C, O'Brien FM, Hallahan B, Loth E, Toal F, Reed S, Hales S, Robertson DM, Craig MC, Mullins D, Barker GJ, Lavender T, Johnston P, Murphy KC, Murphy DG'
Murphy CM, Deeley Q, Daly EM, Ecker C, O'Brien FM, Hallahan B, Loth E, Toal F, Reed S, Hales S, Robertson DM, Craig MC, Mullins D, Barker GJ, Lavender T, Johnston P, Murphy KC, Murphy DG (2012) 'Murphy CM, Deeley Q, Daly EM, Ecker C, O'Brien FM, Hallahan B, Loth E, Toal F, Reed S, Hales S, Robertson DM, Craig MC, Mullins D, Barker GJ, Lavender T, Johnston P, Murphy KC, Murphy DG'. Autism Research, 5 (1):3-12 [Details]
(2012) 'Preference of dress and address; views of attendees and mental health professionals of the psychiatric services'
• Sim C, Hallahan B, McDonald C. (2012) 'Preference of dress and address; views of attendees and mental health professionals of the psychiatric services'. Irish Journal Of Psychological Medicine, 29 (1):27-32 [Details]
(2012) 'Serotonin and the Neural Processing of Facial Emotions in Adults With Autism: An fMRI Study Using Acute Tryptophan DepletionFacial Emotion Processing in Adults With Autism'
Daly E, Daly EM, Deeley Q, Ecker C, Craig M, Hallahan B, Murphy C, Johnston P, Spain D, Gillan N, Brammer M, Giampietro V, Lamar M, Page L, Toal F, Cleare A, Surguladze S, Murphy DG. (2012) 'Serotonin and the Neural Processing of Facial Emotions in Adults With Autism: An fMRI Study Using Acute Tryptophan DepletionFacial Emotion Processing in Adults With Autism'. Archives Of General Psychiatry, [DOI] [Details]
(2011) 'Structural magnetic resonance imaging in bipolar disorder: an international collaborative mega-analysis of individual adult patient data'
Hallahan B, Newell J, Soares JC, Brambilla P, Strakowski SM, Fleck DE, Kieseppä T, Altshuler LL, Fornito A, Malhi GS, McIntosh AM, Yurgelun-Todd DA, Labar KS, Sharma V, MacQueen GM, Murray RM, McDonald C (2011) 'Structural magnetic resonance imaging in bipolar disorder: an international collaborative mega-analysis of individual adult patient data'. Biological Psychiatry, 69 (4):326-335 [DOI] [Details]
(2011) 'Tobacco Smoking and Mental Illness: Important Considerations'
Feeney S, Hallahan B (2011) 'Tobacco Smoking and Mental Illness: Important Considerations'. Irish Journal Of Psychological Medicine, [Details]
(2011) 'Investigation of schema modes currently activated in patients with psychiatric disorders'
Khalily MT, Wota AP, Hallahan B (2011) 'Investigation of schema modes currently activated in patients with psychiatric disorders'. Irish Journal Of Psychological Medicine, 26 :76-81 [Details]
(2011) 'Whack induced psychosis: a case series'
• El-Higaya E, Ahmed M, Hallahan B. (2011) 'Whack induced psychosis: a case series'. Irish Journal Of Psychological Medicine, 28 :s11-s13 [Details]
(2011) 'Psychiatry: Clinical Focus Depression'
Feeney S, Hallahan B (2011) 'Psychiatry: Clinical Focus Depression'. Hospital Doctor, 17 (6):14-19 [Details]
(2011) 'Psychological assessment through performance-based techniques and self-reports: a case study of a sexually abused girl at preschool age'
Khalily MT, Hallahan B (2011) 'Psychological assessment through performance-based techniques and self-reports: a case study of a sexually abused girl at preschool age'. Journal of child sexual abuse, 20 (3):338-352 [Details]
(2010) 'Analysis of prescribing practices in an acute psychiatric ward'
Tully J, Park E, Dunne A, Murray I, McDonald C, Hallahan B. (2010) 'Analysis of prescribing practices in an acute psychiatric ward'. Irish Journal Of Psychological Medicine, 27 :82-85 [Details]
(2010) 'Stress-Induced and Fear Circuitry Disorders: Advancing the Research Agenda for DSM-V: a Book Review'
Hallahan B (2010) 'Stress-Induced and Fear Circuitry Disorders: Advancing the Research Agenda for DSM-V: a Book Review'. Irish Journal Of Psychological Medicine, 27 :161-161 [Details]
(2010) 'Benzlypiperazine-induced acute delirium in a patient with Schizophrenia and an incidental temporal meningioma: A case report and a review of the literature'
Tully J, Hallahan B, McDonald C (2010) 'Benzlypiperazine-induced acute delirium in a patient with Schizophrenia and an incidental temporal meningioma: A case report and a review of the literature'. Irish Journal Of Psychological Medicine, 28 :S14-S16 [Details]
(2010) 'Clinical and anatomical heterogeneity in autistic spectrum disorder: a structural MRI study'
Toal F, Daly EM, Page L, Deeley Q, Hallahan B, Bloemen O, Cutter WJ, Brammer MJ, Curran S, Robertson D, Murphy C, Murphy KC, Murphy DG (2010) 'Clinical and anatomical heterogeneity in autistic spectrum disorder: a structural MRI study'. Psychological Medicine, 40 (7):1171-1181 [Details]
(2010) 'Maturation of limbic regions in Asperger syndrome: a preliminary study using proton magnetic resonance spectroscopy and structural magnetic resonance imaging'
O'Brien FM, Page L, O'Gorman RL, Bolton P, Sharma A, Baird G, Daly E, Hallahan B, Conroy RM, Foy C, Curran S, Robertson D, Murphy KC, Murphy DG (2010) 'Maturation of limbic regions in Asperger syndrome: a preliminary study using proton magnetic resonance spectroscopy and structural magnetic resonance imaging'. Psychiatry Research, 184 (2):77-85 [Details]
(2009) 'Clinical Education Programme: Psychiatry'
Hallahan B (2009) 'Clinical Education Programme: Psychiatry'. Hospital Doctor, 3 :51-54 [Details]
(2009) 'Brain morphometry volume in autistic spectrum disorder: a magnetic resonance imaging study of adults'
Hallahan, B,Daly, EM,McAlonan, G,Loth, E,Toal, F,O'Brien, F,Robertson, D,Hales, S,Murphy, C,Murphy, KC,Murphy, DGM (2009) 'Brain morphometry volume in autistic spectrum disorder: a magnetic resonance imaging study of adults'. Psychological Medicine, 39 :337-346 [DOI] [Details]
(2009) 'Transition to the 2001 Mental Health Act in the West Galway Mental Health Services'
Murray I, Hallahan B, McDonald C (2009) 'Transition to the 2001 Mental Health Act in the West Galway Mental Health Services'. Irish Journal Of Psychological Medicine, 26 :179-182 [Details]
(2009) 'Recent advances in the biological treatment of mood disorders'
McDonald G, Hallahan B (2009) 'Recent advances in the biological treatment of mood disorders'. Irish Journal Of Psychological Medicine, 26 :CPD i-CPD ix [Details]
(2009) 'Psycho-education of family’s in relation to their siblings’ psychiatric illness in a residential intellectual disability population: three cycles of audit'
Ijaz H, Delaney Warner M, Hallahan B (2009) 'Psycho-education of family’s in relation to their siblings’ psychiatric illness in a residential intellectual disability population: three cycles of audit'. Irish Journal Of Psychological Medicine, 29 :62-66 [Details]
(2009) 'Insight in Psychiatry: Educational review'
McFarland J, McDonald C, Hallahan B (2009) 'Insight in Psychiatry: Educational review'. Irish Journal Of Psychological Medicine, 26 :32-36 [Details]
(2009) 'Benzodiazepine and hypnotic prescribing in an acute in-patient psychiatric unit'
Hallahan B, Murray IT, McDonald C (2009) 'Benzodiazepine and hypnotic prescribing in an acute in-patient psychiatric unit'. Psychiatric Bulletin, 33 :12-14 [Details]
(2008) 'Changes in male brain responses to emotional faces from adolescence to middle age'
Deeley Q, Daly EM, Azuma R, Surguladze S, Giampietro V, Brammer MJ, Hallahan B, Dunbar RI, Phillips ML, Murphy DG (2008) 'Changes in male brain responses to emotional faces from adolescence to middle age'. Neuroimage, 40 (1):389-397 [Details]
(2008) 'Meta-analysis of brain volumes in unaffected first-degree relatives of patients with schizophrenia overemphasizes hippocampal deficits'
McDonald C, Dineen B, Hallahan B (2008) 'Meta-analysis of brain volumes in unaffected first-degree relatives of patients with schizophrenia overemphasizes hippocampal deficits'. Archives Of General Psychiatry, 65 (5):603-604 [Details]
(2008) 'Bone Mineral Density and general health of long-term residential psychiatric in-patients'
Hallahan P, Lyons D, Doyle P (2008) 'Bone Mineral Density and general health of long-term residential psychiatric in-patients'. Irish Journal Of Psychological Medicine, 25 :95-99 [Details]
(2007) 'Improving prescription quality in an in-patient mental health unit: three cycles of a clinical audit: letter'
Hallahan B, Murray IT, McDonald C. (2007) 'Improving prescription quality in an in-patient mental health unit: three cycles of a clinical audit: letter'. Psychiatric Bulletin, 31 :435-436 [Details]
(2007) 'Omega-3 fatty acid supplementation in patients with recurrent self-harm. Single-centre double-blind randomised controlled trial'
Hallahan B, Hibbeln JR, Davis JM, Garland MR (2007) 'Omega-3 fatty acid supplementation in patients with recurrent self-harm. Single-centre double-blind randomised controlled trial'. British Journal Of Psychiatry, 190 :118-122 [Details]
(2007) 'Clozapine induced stuttering'
Hallahan B, Murray I, Doyle P (2007) 'Clozapine induced stuttering'. Irish Journal Of Psychological Medicine, 24 :121-123 [Details]
(2007) 'Women with autistic-spectrum disorder: magnetic resonance imaging study of brain anatomy'
Craig MC, Zaman SH, Daly EM, Cutter WJ, Robertson DM, Hallahan B, Toal F, Reed S, Ambikapathy A, Brammer M, Murphy CM, Murphy DG (2007) 'Women with autistic-spectrum disorder: magnetic resonance imaging study of brain anatomy'. British Journal Of Psychiatry, 191 :224-228 [Details]
(2006) 'Essential Fatty Acids and their role in conditions characterised by impulsivity'
Garland MR, Hallahan B (2006) 'Essential Fatty Acids and their role in conditions characterised by impulsivity'. International Reviews in Psychiatry, 18 :99-105 [Details]
(2005) 'Essential fatty acids and mental health'
Hallahan B, Garland MR (2005) 'Essential fatty acids and mental health'. British Journal Of Psychiatry, 186 :275-277 [Details]
(2005) 'Autistic Spectrum Disorders'
Hallahan B, Murphy K (2005) 'Autistic Spectrum Disorders'. Irish Journal Of Psychological Medicine, 22 :137-142 [Details]
(2004) 'The role of psychiatry in oncology patients'
Hallahan B, Garland MR (2004) 'The role of psychiatry in oncology patients'. Irish Journal Of Psychological Medicine, 21 :128-130 [Details]
(2004) 'Essential fatty acids and their role in the treatment of impulsivity disorders'
Hallahan B, Garland MR (2004) 'Essential fatty acids and their role in the treatment of impulsivity disorders'. Prostaglandins Leukotrienes And Essential Fatty Acids, 71 (4):211-216 [Details]

Conference Publications

  Year Publication
(2014) 4th Schizophrenia International Research Society Conference
Scanlon, C., McInerney, S., O’Donoghue, S., Kilmartin, L., Anderson-Schmidt, H., McFarland, J., Waldron, M., Kenney, J., Ambati, S.,Hallahan, B., Dara Cannon, D. and McDonald, C. (2014) Progressive Brain Structure Change Predicts Negative Symptoms in First Episode Psychosis at 3 Year Follow-up 4th Schizophrenia International Research Society Conference [Details]
(2011) Structural Magnetic Resonance Imaging in Bipolar Disorder: An International Collaborative MegaAnalysis of Individual Adult Patient Data
Hallahan, B,Newell, J,Soares, JC,Brambilla, P,Strakowski, SM,Fleck, DE,Kieseppa, T,Altshuler, LL,Fornito, A,Malhi, GS,McIntosh, AM,Yurgelun-Todd, DA,Labar, KS,Sharma, V,MacQueen, GM,Murray, RM,McDonald, C (2011) BIOLOGICAL PSYCHIATRY Structural Magnetic Resonance Imaging in Bipolar Disorder: An International Collaborative MegaAnalysis of Individual Adult Patient Data , pp.326-335 [DOI] [Details]

Abstract

  Year Publication
(2009) Structural MRI in bipolar disorder: An international collaborative mega-analysis of individual patient data.
Hallahan, B,Newell, J,Soares, JC,Brambilla, P,Strakowski, SM,Fleck, DE,Kieseppa, T,Altshuler, LL,Fornito, A,Malhi, GS,McIntosh, AM,Yurgelun-Todd, DA,Labar, KS,Densmore, M,MacQueen, GM,Murray, RM,McDonald, C (2009) Structural MRI in bipolar disorder: An international collaborative mega-analysis of individual patient data. Abstract [Details]

Letter

  Year Publication
(2008) Meta-analysis of brain volumes in unaffected first-degree relatives of patients with schizophrenia overemphasizes hippocampal deficits.
McDonald, C,Dineen, B,Hallahan, B (2008) Meta-analysis of brain volumes in unaffected first-degree relatives of patients with schizophrenia overemphasizes hippocampal deficits. Letter [Details]

Reviews

  Year Publication
(2012) Fragile X-associated disorders: a clinical overview.
Gallagher, A,Hallahan, B (2012) Fragile X-associated disorders: a clinical overview. Reviews [DOI] [Details]

Teaching Interests

I have maintained throughout my career an interest in education and training at both under-graduate and post-graduate level and I have completed a post-graduate diploma in clinical teaching. I convene the Western Post-Graduate Training Scheme in psychiatry. As a member of the curriculum group of the College of Psychiatry of Ireland, I was involved in designing the curriculum for basic specialist trainees, with the year one curriculum now launched. In 2007, I was involved in setting up and was editor of the Video Journals in Psychiatry, (www.vjpsych.ie) an electronic based teaching programme with approximately 100 e-based learning modules for psychiatry trainees and consultant psychiatrists. As senior lecturer in psychiatry in NUI Galway, I am involved in designing the curriculum, organising, delivering, examining and supervising the teaching of medical students in Galway and the three medical academies in Letterkenny, Castlebar and Sligo. I organise and deliver teaching to a range of health disciplines (i.e. the mental health module of the post-gradate diploma in clinical primary care). I lecture and examine for the University of Surrey in Guildford for their Masters in Nutrition.