E. O’Callaghan

4.8k citations

80 papers · 3.6k · h-index 31

Impact in

Psychiatry and Mental health top 0.5%
- Schizophrenia research and treatment
- Bipolar Disorder and Treatment
- Psychosomatic Disorders and Their Treatments
Biological Psychiatry top 1%
- Tryptophan and brain disorders

Papers in

Psychiatry and Mental health 40
- Schizophrenia research and treatment 38
Clinical Psychology 12
- Family Caregiving in Mental Illness 4

Co-authors: Robin Murray (18 shared papers)C. Larkin (36 shared papers)N Takei (12 shared papers)A. Kinsella (29 shared papers)Abbie Lane (17 shared papers)S. Browne (18 shared papers)Pak C. Sham (11 shared papers)Gyles Glover (6 shared papers)
Journals: Schizophrenia Research (28 papers)European Psychiatry (14 papers)Psychological Medicine (6 papers)Acta Psychiatrica Scandinavica (6 papers)The British Journal of Psychiatry (4 papers)
Partner nations: Ireland United Kingdom United States

In The Last Decade

E. O’Callaghan

75 papers receiving 3.4k citations

Peers

Countries citing papers authored by E. O’Callaghan

Since Specialization

Citations

This map shows the geographic impact of E. O’Callaghan's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by E. O’Callaghan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites E. O’Callaghan more than expected).

Fields of papers citing papers by E. O’Callaghan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by E. O’Callaghan. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by E. O’Callaghan. The network helps show where E. O’Callaghan may publish in the future.

Co-authors

The 25 scholars most cited alongside E. O’Callaghan, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with E. O’Callaghan Line = papers co-authored together E. O’Callaghan links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 80 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	A Neurodevelopmental Approach to the Classification of Schizophrenia Schizophrenia Bulletin ·Robin Murray, E. O’Callaghan, David Castle, Shôn Lewis	1992	373
2	Schizophrenia after prenatal exposure to 1957 A2 influenza epidemic The Lancet ·E. O’Callaghan, Pak C. Sham, N Takei, Robin Murray, Gyles Glover	1991	308
3	Quality of life in schizophrenia: relationship to sociodemographic factors, symptomatology and tardive dyskinesia Acta Psychiatrica Scandinavica ·S. Browne, Mark J. Roe, Abbie Lane, M. Gervin, Margaret J. Morris, A. Kinsella, C. Larkin, E. O’Callaghan	1996	277
4	Obstetric complications and age at onset in schizophrenia: an international collaborative meta-analysis of individual patient data American Journal of Psychiatry ·Hélène Verdoux, John Geddes, N Takei, Stephen M. Lawrie, Pascal Bovet, John Eagles, Reinhard Heun, Robin G. McCreadie, T. F. McNeil, E. O’Callaghan, G. Stöber, Marian Willinger, Pádraig Wright, Robin Murray	1997	209
5	Schizophrenia and Complications of Pregnancy and Labor: An Individual Patient Data Meta-analysis Schizophrenia Bulletin ·John Geddes, Hélène Verdoux, N Takei, Stephen M. Lawrie, Pascal Bovet, John Eagles, Reinhard Heun, Robin G. McCreadie, T. F. McNeil, E. O’Callaghan, G. Stöber, Ulrike Willinger, Robin Murray	1999	190
6	The anthropometric assessment of dysmorphic features in schizophrenia as an index of its developmental origins Psychological Medicine ·Abbie Lane, A. Kinsella, P. Murphy, Majella Byrne, Julian Paul Keenan, Karen Colgan, Brendan Cassidy, Noel Sheppard, Richard Horgan, John L. Waddington, C. Larkin, E. O’Callaghan	1997	158
7	Early insight predicts depression and attempted suicide after 4 years in first‐episode schizophrenia and schizophreniform disorder Acta Psychiatrica Scandinavica ·Niall Crumlish, Peter Whitty, M. Kamali, Mary Clarke, S. Browne, Orfhlaith McTigue, Abbie Lane, A. Kinsella, C. Larkin, E. O’Callaghan	2005	154
8	Risk of schizophrenia in adults born after obstetric complications and their association with early onset of illness: a controlled study. BMJ ·E. O’Callaghan, Terri Gibson, Hubert A. Colohan, P.F. Buckley, David Walshe, C. Larkin, John L. Waddington	1992	144
9	Unawareness of illness and its relationship with depression and self-deception in schizophrenia European Psychiatry ·Orla Moore, Eugene Cassidy, Alan Carr, E. O’Callaghan	1999	107
10	Predictors of compliance with neuroleptic medication among inpatients with schizophrenia: a discriminant function analysis European Psychiatry ·Gary Donohoe, Nicholas Owens, Colin O’Donnell, Teresa Burke, L. Moore, Arnold Tobin, E. O’Callaghan	2001	97
11	A prospective evaluation of adherence to medication in first episode schizophrenia European Psychiatry ·M. Kamali, Brendan D. Kelly, Mary Clarke, S. Browne, M. Gervin, A. Kinsella, Abbie Lane, C. Larkin, E. O’Callaghan	2006	96
12	Determinants of neurological dysfunction in first episode schizophrenia Psychological Medicine ·S. Browne, Mary Clarke, M. Gervin, Abbie Lane, John L. Waddington, C. Larkin, E. O’Callaghan	2000	91
13	Subjective and external assessments of quality of life in schizophrenia: relationship to insight Acta Psychiatrica Scandinavica ·Mairead Doyle, S. Flanagan, S. Browne, Mary Clarke, David M. Lydon‐Staley, C. Larkin, E. O’Callaghan	1999	86
14	The Relationship of Schizophrenic Births to 16 Infectious Diseases The British Journal of Psychiatry ·E. O’Callaghan, Pak C. Sham, N Takei, Graham K. Murray, Gyles Glover, Edward Hare, Robin Murray	1994	86
15	Prenatal Exposure to the 1957 Influenza Epidemic and Adult Schizophrenia: A Follow-Up Study The British Journal of Psychiatry ·Mary Cannon, David Cotter, Victoria P. Coffey, Pak C. Sham, N Takei, C. Larkin, Robin Murray, E. O’Callaghan	1996	83
16	Compliance with neuroleptic medication in outpatients with schizophrenia; relationship to subjective response to neuroleptics; attitudes to medication and insight Comprehensive Psychiatry ·J. Garavan, S. Browne, M. Gervin, Abbie Lane, C. Larkin, E. O’Callaghan	1998	81
17	Prenatal exposure to influenza and the development of schizophrenia: is the effect confined to females? American Journal of Psychiatry ·N Takei, Pak Sham, E. O’Callaghan, Graham K. Murray, Gyles Glover, Robin Murray	1994	66
18	Clinical predictors of admission status in first episode schizophrenia European Psychiatry ·Brendan D. Kelly, Mary Clarke, S. Browne, Orfhlaith McTigue, M. Kamali, M. Gervin, A. Kinsella, Abbie Lane, C. Larkin, E. O’Callaghan	2004	63
19	Efficacy of a psychoeducational intervention in improving relatives’ knowledge about schizophrenia and reducing rehospitalisation European Psychiatry ·Eugene Cassidy, Sarah Hill, E. O’Callaghan	2001	62
20	Prospective evaluation of neurological soft signs in first-episode schizophrenia in relation to psychopathology: state versus trait phenomena Psychological Medicine ·Peter Whitty, Mary Clarke, S. Browne, Orfhlaith McTigue, M. Kamali, L. Feeney, Abbie Lane, A. Kinsella, John L. Waddington, C. Larkin, E. O’Callaghan	2003	60

About E. O’Callaghan

E. O’Callaghan is a scholar working on Psychiatry and Mental health, Clinical Psychology, Philosophy, Social Psychology and Pediatrics, Perinatology and Child Health, having authored 80 papers that have together received 3.6k indexed citations. Recurring topics across this work include Schizophrenia research and treatment (38 papers), Mental Health and Psychiatry (10 papers), Mental Health Treatment and Access (9 papers), Influenza Virus Research Studies (5 papers), Functional Brain Connectivity Studies (4 papers), Family Caregiving in Mental Illness (4 papers), Birth, Development, and Health (4 papers) and Maternal Mental Health During Pregnancy and Postpartum (3 papers). The work is most often cited by research in Psychiatry and Mental health (2.0k citations), Biological Psychiatry (236 citations), Philosophy (474 citations), Clinical Psychology (700 citations) and Behavioral Neuroscience (75 citations). E. O’Callaghan has collaborated with scholars based in Ireland, United Kingdom and United States. Frequent co-authors include Robin Murray, C. Larkin, N Takei, A. Kinsella, Abbie Lane, S. Browne, Pak C. Sham, Gyles Glover, David Castle and Shôn Lewis. Their work appears in journals such as Schizophrenia Research, European Psychiatry, Psychological Medicine, Acta Psychiatrica Scandinavica and The British Journal of Psychiatry.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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E. O’Callaghan

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