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M. Schäfer · SciRah

Researcher profile · Semantic Scholar

M. Schäfer

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M. Schäfer — researcher profile on SciRah

h-index: 31
Works: 89
Citations: 3,881

Most-cited papers

Long-chain omega-3 fatty acids for indicated prevention of psychotic disorders: a randomized, placebo-controlled trial.
G. Amminger, M. Schäfer, K. Papageorgiou, C. Klier +5 more
2010Archives of General Psychiatry890 citations Open access
Semantic Scholar
Omega-3 fatty acids supplementation in children with autism: a double-blind randomized, placebo-controlled pilot study.
G. Amminger, G. Berger, M. Schäfer, C. Klier +2 more
2007Biological Psychiatry350 citations
Semantic Scholar
Effect of &ohgr;-3 Polyunsaturated Fatty Acids in Young People at Ultrahigh Risk for Psychotic Disorders: The NEURAPRO Randomized Clinical Trial
P. McGorry, B. Nelson, C. Markulev, Hok P. Yuen +15 more
2017JAMA psychiatry205 citations Open access
Semantic Scholar
Emotion recognition in individuals at clinical high-risk for schizophrenia.
G. Amminger, M. Schäfer, K. Papageorgiou, C. Klier +5 more
2012Schizophrenia bulletin194 citations Open access
Semantic Scholar
Longer-term outcome in the prevention of psychotic disorders by the Vienna omega-3 study
G. Amminger, M. Schäfer, M. Schlögelhofer, C. Klier +1 more
2015Nature Communications188 citations Open access
Semantic Scholar
Decreased nervonic acid levels in erythrocyte membranes predict psychosis in help-seeking ultra-high-risk individuals
G. Amminger, M. Schäfer, C. Klier, J. Slavik +6 more
2012Molecular Psychiatry134 citations Open access
Semantic Scholar
Paternal age, de novo mutations and schizophrenia
S. Smesny, B. Milleit, U. Hipler, Christine Milleit +11 more
2013Molecular Psychiatry98 citations Open access
Semantic Scholar
St. John's wort (Hypericum perforatum) and breastfeeding: plasma and breast milk concentrations of hyperforin for 5 mothers and 2 infants.
C. Klier, B. Schmid-Siegel, M. Schäfer, G. Lenz +3 more
2006Journal of Clinical Psychiatry81 citations
Semantic Scholar
Facial and vocal affect perception in people at ultra‐high risk of psychosis, first‐episode schizophrenia and healthy controls
G. Amminger, M. Schäfer, C. Klier, M. Schlögelhofer +6 more
2012Early Intervention in Psychiatry80 citations
Semantic Scholar
Long-Chain -3 Fatty Acids for Indicated Prevention of Psychotic Disorders A Randomized, Placebo-Controlled Trial
G. Amminger, M. Schäfer, K. Papageorgiou, C. Klier +5 more
201079 citations
Semantic Scholar
Usefulness of the CAPE-P15 for detecting people at ultra-high risk for psychosis: Psychometric properties and cut-off values.
Akvile Bukenaite, J. Stochl, N. Mossaheb, M. Schäfer +9 more
2017Schizophrenia Research73 citations Open access
Semantic Scholar
Emotion recognition as a predictor of transition to a psychotic disorder in ultra-high risk participants.
K. Allott, M. Schäfer, A. Thompson, B. Nelson +7 more
2014Schizophrenia Research70 citations
Semantic Scholar
Omega-3 Fatty Acid Supplementation in Adolescents with Borderline Personality Disorder and Ultra-High Risk Criteria for Psychosis: A Post Hoc Subgroup Analysis of a Double—Blind, Randomized Controlled Trial
G. Amminger, A. Chanen, S. Ohmann, C. Klier +7 more
2013Canadian journal of psychiatry. Revue canadienne de psychiatrie69 citations Open access
Semantic Scholar
Youth Depression Alleviation with Anti-inflammatory Agents (YoDA-A): a randomised clinical trial of rosuvastatin and aspirin
M. Berk, M. Mohebbi, Olivia M. Dean, S. Cotton +22 more
2020BMC Medicine68 citations Open access
Semantic Scholar
Emotion recognition in unaffected first-degree relatives of individuals with first-episode schizophrenia.
K. Allott, S. Rice, C. Bartholomeusz, C. Klier +3 more
2015Schizophrenia Research64 citations
Semantic Scholar
Neurocognition as a predictor of transition to psychotic disorder and functional outcomes in ultra-high risk participants: Findings from the NEURAPRO randomized clinical trial.
Luke K. Bolt, G. Amminger, J. Farhall, P. McGorry +18 more
2019Schizophrenia Research62 citations Open access
Semantic Scholar
Prediction of transition from ultra-high risk to first-episode psychosis using a probabilistic model combining history, clinical assessment and fatty-acid biomarkers
S. Clark, B. Baune, K. Schubert, S. Lavoie +8 more
2016Translational Psychiatry61 citations Open access
Semantic Scholar
The NEURAPRO Biomarker Analysis: Long-Chain Omega-3 Fatty Acids Improve 6-Month and 12-Month Outcomes in Youths at Ultra-High Risk for Psychosis.
G. Amminger, B. Nelson, C. Markulev, Hok P. Yuen +16 more
2020Biological Psychiatry59 citations Open access
Semantic Scholar
NEURAPRO: a multi-centre RCT of omega-3 polyunsaturated fatty acids versus placebo in young people at ultra-high risk of psychotic disorders—medium-term follow-up and clinical course
B. Nelson, G. Amminger, Hok P. Yuen, C. Markulev +17 more
2018npj Schizophrenia53 citations Open access
Semantic Scholar
Adolescents at ultra-high risk for psychosis with and without 22q11 deletion syndrome: a comparison of prodromal psychotic symptoms and general functioning.
M. Armando, P. Girardi, S. Vicari, D. Menghini +8 more
2012Schizophrenia Research51 citations Open access
Semantic Scholar
St. John's wort (Hypericum perforatum)--is it safe during breastfeeding?
C. Klier, M. Schäfer, B. Schmid-Siegel, G. Lenz +1 more
2002Pharmacopsychiatry51 citations
Semantic Scholar
Predictors of treatment response in young people at ultra-high risk for psychosis who received long-chain omega-3 fatty acids
G. Amminger, Andrea Mechelli, S. Rice, S.-W. Kim +5 more
2015Translational Psychiatry49 citations Open access
Semantic Scholar
Differential expression of the inflammation marker IL12p40 in the at-risk mental state for psychosis: a predictor of transition to psychotic disorder?
M. Föcking, P. Dicker, L. Lopez, M. Cannon +5 more
2016BMC Psychiatry46 citations Open access
Semantic Scholar
White matter integrity in individuals at ultra-high risk for psychosis: a systematic review and discussion of the role of polyunsaturated fatty acids
N. Vijayakumar, C. Bartholomeusz, T. Whitford, D. Hermens +7 more
2016BMC Psychiatry45 citations Open access
Semantic Scholar
Comparison of erythrocyte omega-3 index, fatty acids and molecular phospholipid species in people at ultra-high risk of developing psychosis and healthy people.
Ayedh Alqarni, T. Mitchell, P. McGorry, B. Nelson +19 more
2020Schizophrenia Research44 citations Open access
Semantic Scholar
Erythrocyte polyunsaturated fatty acid levels in young people at ultra-high risk for psychotic disorder and healthy adolescent controls.
S. Rice, M. Schäfer, C. Klier, N. Mossaheb +2 more
2015Psychiatry Research43 citations
Semantic Scholar
Niacin Skin Sensitivity Is Increased in Adolescents at Ultra-High Risk for Psychosis
G. Berger, S. Smesny, M. Schäfer, B. Milleit +11 more
2016PLoS ONE39 citations Open access
Semantic Scholar
Relationship between Erythrocyte Fatty Acid Composition and Psychopathology in the Vienna Omega-3 Study
Sung-Wan Kim, M. Jhon, Jae-Min Kim, S. Smesny +6 more
2016PLoS ONE39 citations Open access
Semantic Scholar
Effect of omega-3 fatty acids for indicated prevention of young patients at risk for psychosis: when do they begin to be effective?
N. Mossaheb, M. Schäfer, M. Schlögelhofer, C. Klier +3 more
2013Schizophrenia Research38 citations
Semantic Scholar
Erythrocyte glutathione levels as long-term predictor of transition to psychosis
S. Lavoie, Maximus Berger, M. Schlögelhofer, M. Schäfer +6 more
2017Translational Psychiatry36 citations Open access
Semantic Scholar
Frontal delta power associated with negative symptoms in ultra-high risk individuals who transitioned to psychosis.
S. Lavoie, M. Schäfer, T. Whitford, F. Benninger +6 more
2012Schizophrenia Research34 citations
Semantic Scholar
Relationship Between Polyunsaturated Fatty Acids and Psychopathology in the NEURAPRO Clinical Trial
Maximus Berger, B. Nelson, C. Markulev, Hok P. Yuen +18 more
2019Frontiers in Psychiatry29 citations Open access
Semantic Scholar
Metabolic changes in first‐episode early‐onset schizophrenia with second‐generation antipsychotics
B. O'Donoghue, M. Schäfer, J. Becker, K. Papageorgiou +1 more
2014Early Intervention in Psychiatry28 citations
Semantic Scholar
Trajectories of symptom severity and functioning over a three-year period in a psychosis high-risk sample: A secondary analysis of the Neurapro trial.
J. Hartmann, S. Schmidt, P. McGorry, Maximus Berger +20 more
2019Behaviour Research and Therapy27 citations Open access
Semantic Scholar
Relationship between membrane fatty acids and cognitive symptoms and information processing in individuals at ultra-high risk for psychosis.
Sung-Wan Kim, M. Schäfer, C. Klier, M. Berk +8 more
2014Schizophrenia Research27 citations Open access
Semantic Scholar
Dynamic prediction of transition to psychosis using joint modelling.
Hok P. Yuen, A. Mackinnon, J. Hartmann, G. Amminger +19 more
2018Schizophrenia Research24 citations Open access
Semantic Scholar
Youth depression alleviation: the Fish Oil Youth Depression Study (YoDA‐F): A randomized, double‐blind, placebo‐controlled treatment trial
S. Rice, I. Hickie, A. Yung, A. Mackinnon +8 more
2016Early Intervention in Psychiatry24 citations Open access
Semantic Scholar
Development and temporal validation of a clinical prediction model of transition to psychosis in individuals at ultra‐high risk in the UHR 1000+ cohort
Simon Hartmann, Dominic B. Dwyer, B. Cavve, E. Byrne +28 more
2024World Psychiatry23 citations Open access
Semantic Scholar
Youth Depression Alleviation‐Augmentation with an anti‐inflammatory agent (YoDA‐A): protocol and rationale for a placebo‐controlled randomized trial of rosuvastatin and aspirin
Amelia Quinn, Olivia M. Dean, C. Davey, Melissa J. Kerr +18 more
2018Early Intervention in Psychiatry19 citations Open access
Semantic Scholar
Opening the Black Box of Cognitive-Behavioural Case Management in Clients with Ultra-High Risk for Psychosis
J. Hartmann, P. McGorry, S. J. Schmidt, G. Amminger +19 more
2017Psychotherapy and Psychosomatics19 citations Open access
Semantic Scholar
Basic symptoms in young people at ultra-high risk of psychosis: Association with clinical characteristics and outcomes.
S. Youn, L. Phillips, G. Amminger, G. Berger +19 more
2019Schizophrenia Research18 citations Open access
Semantic Scholar
T49. THE NEURAPRO STUDY: ADHERENCE TO STUDY MEDICATION
M. Schlögelhofer, P. McGorry, Barnaby Nelson, C. Markulev +15 more
2018Schizophrenia bulletin16 citations Open access
Semantic Scholar
Novel biotherapies are needed in youth mental health
G. Amminger, Maximus Berger, S. Rice, Christopher G. Davey +2 more
2017Australasian Psychiatry16 citations
Semantic Scholar
Distress Related to Attenuated Psychotic Symptoms: Static and Dynamic Association With Transition to Psychosis, Nonremission, and Transdiagnostic Symptomatology in Clinical High-Risk Patients in an International Intervention Trial
Barnaby Nelson, Hok P. Yuen, G. Amminger, G. Berger +19 more
2020Schizophrenia bulletin15 citations Open access
Semantic Scholar
Relationship between amygdala volume and emotion recognition in adolescents at ultra-high risk for psychosis.
C. Bartholomeusz, S. Whittle, Eleanor Pilioussis, K. Allott +4 more
2014Psychiatry Research15 citations
Semantic Scholar
The addition of fluoxetine to cognitive behavioural therapy for youth depression (YoDA-C): study protocol for a randomised control trial
C. Davey, A. Chanen, S. Cotton, S. Hetrick +14 more
2014Trials15 citations Open access
Semantic Scholar
Supplementation with the omega-3 long chain polyunsaturated fatty acids: Changes in the concentrations of omega-3 index, fatty acids and molecular phospholipids of people at ultra high risk of developing psychosis.
Ayedh Alqarni, T. Mitchell, P. McGorry, B. Nelson +19 more
2020Schizophrenia Research14 citations Open access
Semantic Scholar
Omega‐3 fatty acids and neurocognitive ability in young people at ultra‐high risk for psychosis
Alison McLaverty, K. Allott, Maximus Berger, R. Hester +19 more
2020Early Intervention in Psychiatry13 citations Open access
Semantic Scholar
[Early detection of psychotic disorders].
M. Schäfer, C. Klier, K. Papageorgiou, Max Friedrich +1 more
2007Neuropsychiatrie (Deisenhofen)11 citations
Semantic Scholar
The association of plasma inflammatory markers with omega-3 fatty acids and their mediating role in psychotic symptoms and functioning: an analysis of the NEURAPRO clinical trial.
S. Susai, D. Mongan, C. Healy, M. Cannon +21 more
2021Brain, behavior, and immunity10 citations Open access
Semantic Scholar

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