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Alex Gamma

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Switzerland

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TOP 3
Dominique Eich; Anja Frei; vladeta ajdacic-gross; Jules Angst; Wulf Rössler; Alex Gamma
A new rating scale for adult ADHD based on the Symptom Checklist 90 (SCL-90-R).
Jean-Michel Azorin; Charles L Bowden; Alex Gamma; Giulio Perugi; Eduard Vieta; Jules Angst; Allan Young
Identifying features of bipolarity in patients with first-episode postpartum depression: findings from the international BRIDGE study.
Jules Angst; J M Azorin; Charles L Bowden; Alex Gamma; G Perugi; E Vieta; A H Young
Diagnostic criteria for bipolarity based on an international sample of 5,635 patients with DSM-IV major depressive episodes.

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All Publications

2012: Dominique Eich; Anja Frei; vladeta ajdacic-gross; Jules Angst; Wulf Rössler; Alex Gamma
A new rating scale for adult ADHD based on the Symptom Checklist 90 (SCL-90-R).
European archives of psychiatry and clinical neuroscience 2012;262(6):519-28.
2012: Jean-Michel Azorin; Charles L Bowden; Alex Gamma; Giulio Perugi; Eduard Vieta; Jules Angst; Allan Young
Identifying features of bipolarity in patients with first-episode postpartum depression: findings from the international BRIDGE study.
Journal of affective disorders 2012;136(3):710-5.
2012: Jules Angst; J M Azorin; Charles L Bowden; Alex Gamma; G Perugi; E Vieta; A H Young
Diagnostic criteria for bipolarity based on an international sample of 5,635 patients with DSM-IV major depressive episodes.
European archives of psychiatry and clinical neuroscience 2012;262(1):3-11.
2012: Erich Studerus; Alex Gamma; Michael Kometer; Franz Vollenweider
Prediction of psilocybin response in healthy volunteers.
PloS one 2012;7(2):e30800.
2011: Wulf Rössler; vladeta ajdacic-gross; Alex Gamma; Helene Haker; Michael P Hengartner; Jules Angst
Sub-clinical psychosis symptoms in young adults are risk factors for subsequent common mental disorders.
Schizophrenia research 2011;131(1-3):18-23.
2011: Jules Angst; Jean-Michel Azorin; Charles L Bowden; Alex Gamma; Giulio Perugi; Eduard Vieta; Allan H Young
Prevalence and characteristics of undiagnosed bipolar disorders in patients with a major depressive episode: the BRIDGE study.
Archives of general psychiatry 2011;68(8):791-8.
2011: Wulf Rössler; Jules Angst; Alex Gamma; Helene Haker; Niklaus Stulz; Kathleen Ries Merikangas; vladeta ajdacic-gross
Reappraisal of the interplay between psychosis and depression symptoms in the pathogenesis of psychotic syndromes: results from a twenty-year prospective community study.
European archives of psychiatry and clinical neuroscience 2011;261(1):11-9.
2011: Jules Angst; Alex Gamma; Wulf Rössler; vladeta ajdacic-gross; Daniel N Klein
Childhood adversity and chronicity of mood disorders.
European archives of psychiatry and clinical neuroscience 2011;261(1):21-7.
2011: Kathleen Ries Merikangas; Erin Nakamura; Amanda Kalaydjian Richardson; Wulf Rössler; Lihong Cui; Alex Gamma; Hansruedi Isler; Suzan Khoromi; Femke Lamers; vladeta ajdacic-gross; Jules Angst
Magnitude, impact, and stability of primary headache subtypes: 30 year prospective Swiss cohort study.
BMJ (Clinical research ed.) 2011;343():d5076.
2010: Jules Angst; Alex Gamma; D Clarke; vladeta ajdacic-gross; Wulf Rössler; D Regier
Subjective distress predicts treatment seeking for depression, bipolar, anxiety, panic, neurasthenia and insomnia severity spectra.
Acta psychiatrica Scandinavica 2010;122(6):488-98.
2010: Karin Landolt; vladeta ajdacic-gross; Jules Angst; Kathleen Ries Merikangas; Alex Gamma; Felix Gutzwiller; Wulf Rössler
Smoking and psychiatric disorders: have subthreshold disorders been overlooked?
Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco 2010;12(5):516-20.
2010: Jules Angst; Thomas D Meyer; Rolf Adolfsson; Peter Skeppar; Mauro Giovanni Carta; Franco Benazzi; Ru-Band Lu; Yi-Hsuan Wu; Hai-Chen Yang; Cheng-Mei Yuan; Paolo Morselli; Peter Brieger; Judith Katzmann; Ines Alice Teixeira Leão; José Alberto Del Porto; Doris Hupfeld Moreno; Ricardo A Moreno; Odeilton T Soares; Eduard Vieta; Alex Gamma
Hypomania: a transcultural perspective.
World psychiatry : official journal of the World Psychiatric Association (WPA) 2010;9(1):41-9.
2010: Erich Studerus; Alex Gamma; Franz Vollenweider
Psychometric evaluation of the altered states of consciousness rating scale (OAV).
PloS one 2010;5(8):e12412.
2009: vladeta ajdacic-gross; Karin Landolt; Jules Angst; Alex Gamma; Kathleen Ries Merikangas; Felix Gutzwiller; Wulf Rössler
Adult versus adolescent onset of smoking: how are mood disorders and other risk factors involved?
Addiction (Abingdon, England) 2009;104(8):1411-9.
2009: Jules Angst; Alex Gamma; Wulf Rössler; vladeta ajdacic-gross; Daniel N Klein
Long-term depression versus episodic major depression: results from the prospective Zurich study of a community sample.
Journal of affective disorders 2009;115(1-2):112-21.
2009: Jules Angst; Alex Gamma; Franco Benazzi; vladeta ajdacic-gross; Wulf Rössler
Does psychomotor agitation in major depressive episodes indicate bipolarity? Evidence from the Zurich Study.
European archives of psychiatry and clinical neuroscience 2009;259(1):55-63.
2009: Jules Angst; Alex Gamma; David S Baldwin; vladeta ajdacic-gross; Wulf Rössler
The generalized anxiety spectrum: prevalence, onset, course and outcome.
European archives of psychiatry and clinical neuroscience 2009;259(1):37-45.
2008: Alex Gamma; Jules Angst; vladeta ajdacic-gross; Wulf Rössler
Are hypomanics the happier normals?
Journal of affective disorders 2008;111(2-3):235-43.
2008: Jules Angst; Alex Gamma
Diagnosis and course of affective psychoses: was Kraepelin right?
European archives of psychiatry and clinical neuroscience 2008;258 Suppl 2():107-10.
2008: Daniel J Buysse; Jules Angst; Alex Gamma; vladeta ajdacic-gross; Dominique Eich; Wulf Rössler
Prevalence, course, and comorbidity of insomnia and depression in young adults.
Sleep 2008;31(4):473-80.
2007: Dominique Eich; Christoph Neuhaus; Alex Gamma; Jules Angst; Wulf Rössler; vladeta ajdacic-gross; Milos Opravil
Is depression a risk factor for heart complaints? Longitudinal aspects in the Zurich study.
European archives of psychiatry and clinical neuroscience 2007;257(7):396-401.
2007: Jérôme Endrass; Stefan Vetter; Alex Gamma; William T Gallo; Astrid Rossegger; Frank Urbaniok; Jules Angst
Are behavioral problems in childhood and adolescence associated with bipolar disorder in early adulthood?
European archives of psychiatry and clinical neuroscience 2007;257(4):217-21.
2007: Wulf Rössler; Anita Riecher-Rössler; Jules Angst; Robin Murray; Alex Gamma; Dominique Eich; Jim van Os; Vladeta Ajdacic Gross
Psychotic experiences in the general population: a twenty-year prospective community study.
Schizophrenia research 2007;92(1-3):1-14.
2007: Jules Angst; Alex Gamma; Lukas Pezawas; vladeta ajdacic-gross; Dominique Eich; Wulf Rössler; C Altamura
Parsing the clinical phenotype of depression: the need to integrate brief depressive episodes.
Acta psychiatrica Scandinavica 2007;115(3):221-8.
2007: Alex Gamma; Jules Angst; vladeta ajdacic-gross; Dominique Eich; Wulf Rössler
The spectra of neurasthenia and depression: course, stability and transitions.
European archives of psychiatry and clinical neuroscience 2007;257(2):120-7.
2007: Jules Angst; Alex Gamma; Franco Benazzi; vladeta ajdacic-gross; Wulf Rössler
Melancholia and atypical depression in the Zurich study: epidemiology, clinical characteristics, course, comorbidity and personality.
Acta psychiatrica Scandinavica. Supplementum 2007;(433):72-84.
2007: Wulf Rössler; Christoph Lauber; Jules Angst; Helene Haker; Alex Gamma; Dominique Eich; Ronald C Kessler; vladeta ajdacic-gross
The use of complementary and alternative medicine in the general population: results from a longitudinal community study.
Psychological medicine 2007;37(1):73-84.
2006: vladeta ajdacic-gross; Stephan Horvath; Mirjana Canjuga; Alex Gamma; Jules Angst; Wulf Rössler; Dominique Eich
How ubiquitous are physical and psychological complaints in young and middle adulthood? A longitudinal perspective.
Social psychiatry and psychiatric epidemiology 2006;41(11):881-8.
2006: Jules Angst; Alex Gamma; Jérôme Endrass; Wulf Rössler; vladeta ajdacic-gross; Dominique Eich; Richard Herrell; Kathleen Ries Merikangas
Is the association of alcohol use disorders with major depressive disorder a consequence of undiagnosed bipolar-II disorder?
European archives of psychiatry and clinical neuroscience 2006;256(7):452-7.
2006: Jules Angst; Alex Gamma; O Joseph Bienvenu; William W Eaton; vladeta ajdacic-gross; Dominique Eich; Wulf Rössler
Varying temporal criteria for generalized anxiety disorder: prevalence and clinical characteristics in a young age cohort.
Psychological medicine 2006;36(9):1283-92.
2006: Gregor Hasler; P J Gergen; vladeta ajdacic-gross; Alex Gamma; Dominique Eich; Wulf Rössler; Jules Angst
Asthma and body weight change: a 20-year prospective community study of young adults.
International journal of obesity (2005) 2006;30(7):1111-8.
2006: Urs Hepp; Alex Gamma; Gabriella Milos; Dominique Eich; vladeta ajdacic-gross; Wulf Rössler; Jules Angst; Ulrich Schnyder
Prevalence of exposure to potentially traumatic events and PTSD. The Zurich Cohort Study.
European archives of psychiatry and clinical neuroscience 2006;256(3):151-8.
2006: Urs Hepp; Alex Gamma; Gabriella Milos; Dominique Eich; vladeta ajdacic-gross; Wulf Rössler; Jules Angst; Ulrich Schnyder
Inconsistency in reporting potentially traumatic events.
The British journal of psychiatry : the journal of mental science 2006;188():278-83.
2006: Jules Angst; Alex Gamma; Franco Benazzi; Brett Silverstein; vladeta ajdacic-gross; Dominique Eich; Wulf Rössler
Atypical depressive syndromes in varying definitions.
European archives of psychiatry and clinical neuroscience 2006;256(1):44-54.
2006: Mauro Giovanni Carta; maria carolina hardoy; Mariangela Cadeddu; Andrea Murru; Andrea Campus; Pier Luigi Morosini; Alex Gamma; Jules Angst
The accuracy of the Italian version of the Hypomania Checklist (HCL-32) for the screening of bipolar disorders and comparison with the Mood Disorder Questionnaire (MDQ) in a clinical sample.
Clinical practice and epidemiology in mental health : CP & EMH 2006;2():2.
2005: Gregor Hasler; Shmuel Lissek; vladeta ajdacic-gross; Gabriella Milos; Alex Gamma; Dominique Eich; Wulf Rössler; Jules Angst
Major depression predicts an increase in long-term body weight variability in young adults.
Obesity research 2005;13(11):1991-8.
2005: Jules Angst; Rolf Adolfsson; Franco Benazzi; Alex Gamma; Elie G Hantouche; Thomas D Meyer; Peter Skeppar; Eduard Vieta; Jan Scott
The HCL-32: towards a self-assessment tool for hypomanic symptoms in outpatients.
Journal of affective disorders 2005;88(2):217-33.
2005: Alex Gamma; Daniel Brandeis; Ruven Brandeis; Franz Vollenweider
The P3 in 'ecstasy' polydrug users during response inhibition and execution.
Journal of psychopharmacology (Oxford, England) 2005;19(5):504-12.
2005: Gregor Hasler; Daniel S Pine; David G Kleinbaum; Alex Gamma; David Luckenbaugh; vladeta ajdacic-gross; Dominique Eich; Wulf Rössler; Jules Angst
Depressive symptoms during childhood and adult obesity: the Zurich Cohort Study.
Molecular psychiatry 2005;10(9):842-50.
2005: Stanislaw Kozak; Andreas R Gantenbein; Hansruedi Isler; Kathleen Ries Merikangas; Jules Angst; Alex Gamma; Reto M Agosti
Nosology and treatment of primary headache in a Swiss headache clinic.
The journal of headache and pain 2005;6(3):121-7.
2005: Gregor Hasler; Peter J Gergen; David G Kleinbaum; vladeta ajdacic-gross; Alex Gamma; Dominique Eich; Wulf Rössler; Jules Angst
Asthma and panic in young adults: a 20-year prospective community study.
American journal of respiratory and critical care medicine 2005;171(11):1224-30.
2005: Jules Angst; Alex Gamma; Martin Neuenschwander; vladeta ajdacic-gross; Dominique Eich; Wulf Rössler; Kathleen Ries Merikangas
Prevalence of mental disorders in the Zurich Cohort Study: a twenty year prospective study.
Epidemiologia e psichiatria sociale 2005;14(2):68-76.
2005: Gregor Hasler; Daniel J Buysse; Alex Gamma; vladeta ajdacic-gross; Dominique Eich; Wulf Rössler; Jules Angst
Excessive daytime sleepiness in young adults: a 20-year prospective community study.
The Journal of clinical psychiatry 2005;66(4):521-9.
2005: Francis Lavergne; Ivan Berlin; Alex Gamma; Hans Stassen; Jules Angst
Onset of improvement and response to mirtazapine in depression: a multicenter naturalistic study of 4771 patients.
Neuropsychiatric disease and treatment 2005;1(1):59-68.
2005: Alex Gamma; Lisa Jerome; Matthias E Liechti; Harry Sumnall
Is ecstasy perceived to be safe? A critical survey.
Drug and alcohol dependence 2005;77(2):185-93.
2005: Jules Angst; Alex Gamma; Jérôme Endrass; Elie G Hantouche; Renée Goodwin; vladeta ajdacic-gross; Dominique Eich; Wulf Rössler
Obsessive-compulsive syndromes and disorders: significance of comorbidity with bipolar and anxiety syndromes.
European archives of psychiatry and clinical neuroscience 2005;255(1):65-71.
2005: Jules Angst; Robert Sellaro; Hans H Stassen; Alex Gamma
Diagnostic conversion from depression to bipolar disorders: results of a long-term prospective study of hospital admissions.
Journal of affective disorders 2005;84(2-3):149-57.
2005: Jules Angst; Felix Angst; Regina Gerber-Werder; Alex Gamma
Suicide in 406 mood-disorder patients with and without long-term medication: a 40 to 44 years' follow-up.
Archives of suicide research : official journal of the International Academy for Suicide Research 2005;9(3):279-300.
2004: Gregor Hasler; Daniel S Pine; Alex Gamma; Gabriella Milos; vladeta ajdacic-gross; Dominique Eich; Wulf Rössler; Jules Angst
The associations between psychopathology and being overweight: a 20-year prospective study.
Psychological medicine 2004;34(6):1047-57.
2004: Alex Gamma
Keeping a clear head on effects of illicit drugs.
Nature 2004;430(6998):399.
2004: Gregor Hasler; Daniel J Buysse; Richard Klaghofer; Alex Gamma; vladeta ajdacic-gross; Dominique Eich; Wulf Rössler; Jules Angst
The association between short sleep duration and obesity in young adults: a 13-year prospective study.
Sleep 2004;27(4):661-6.
2004: Jules Angst; Alex Gamma; Jérôme Endrass; Renee Goodwin; vladeta ajdacic-gross; Dominique Eich; Wulf Rössler
Obsessive-compulsive severity spectrum in the community: prevalence, comorbidity, and course.
European archives of psychiatry and clinical neuroscience 2004;254(3):156-64.
2004: Alex Gamma; Dietrich Lehmann; Edi Frei; Kazuki Iwata; Roberto D Pascual-Marqui; Franz Vollenweider
Comparison of simultaneously recorded [H2(15)O]-PET and LORETA during cognitive and pharmacological activation.
Human brain mapping 2004;22(2):83-96.
2004: Jules Angst; Regina Gerber-Werder; Hans-Ulrich Zuberbühler; Alex Gamma
Is bipolar I disorder heterogeneous?
European archives of psychiatry and clinical neuroscience 2004;254(2):82-91.
2003: Jules Angst; Alex Gamma; Robert Sellaro; Philip W Lavori; Heping Zhang
Recurrence of bipolar disorders and major depression. A life-long perspective.
European archives of psychiatry and clinical neuroscience 2003;253(5):236-40.
2003: Jules Angst; Alex Gamma; Franco Benazzi; vladeta ajdacic-gross; Dominique Eich; Wulf Rössler
Diagnostic issues in bipolar disorder.
European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology 2003;13 Suppl 2():S43-50.
2003: Lukas Pezawas; Jules Angst; Alex Gamma; vladeta ajdacic-gross; Dominique Eich; Wulf Rössler
Recurrent brief depression--past and future.
Progress in neuro-psychopharmacology & biological psychiatry 2003;27(1):75-83.
2003: Alex Gamma
"Ecstasy" and neurotoxic effects on the brain.
Toxicology letters 2003;136(3):229-30; author reply 231-2.
2003: Jules Angst; Alex Gamma; Jérôme Endrass
Risk factors for the bipolar and depression spectra.
Acta psychiatrica Scandinavica. Supplementum 2003;(418):15-9.
2003: Dominique Eich; vladeta ajdacic-gross; M Condrau; H Huber; Alex Gamma; Jules Angst; Wulf Rössler
The Zurich Study: participation patterns and Symptom Checklist 90-R scores in six interviews, 1979-99.
Acta psychiatrica Scandinavica. Supplementum 2003;(418):11-4.
2003: Jules Angst; Alex Gamma; Franco Benazzi; vladeta ajdacic-gross; Dominique Eich; Wulf Rössler
Toward a re-definition of subthreshold bipolarity: epidemiology and proposed criteria for bipolar-II, minor bipolar disorders and hypomania.
Journal of affective disorders 2003;73(1-2):133-46.
2002: Jules Angst; Alex Gamma; Robert Sellaro; Heping Zhang; Kathleen Ries Merikangas
Toward validation of atypical depression in the community: results of the Zurich cohort study.
Journal of affective disorders 2002;72(2):125-38.
2002: Jules Angst; Alex Gamma; Peter Lewinsohn
The evolving epidemiology of bipolar disorder.
World psychiatry : official journal of the World Psychiatric Association (WPA) 2002;1(3):146-8.
2002: Jules Angst; Alex Gamma; M Gastpar; J-P Lépine; J Mendlewicz; Andre Tylee
Gender differences in depression. Epidemiological findings from the European DEPRES I and II studies.
European archives of psychiatry and clinical neuroscience 2002;252(5):201-9.
2002: Franz Vollenweider; Matthias E Liechti; Alex Gamma; George Greer; Mark A Geyer
Acute psychological and neurophysiological effects of MDMA in humans.
Journal of psychoactive drugs 2002;34(2):171-84.
2002: Jules Angst; Alex Gamma
A new bipolar spectrum concept: a brief review.
Bipolar disorders 2002;4 Suppl 1():11-4.
2001: E Frei; Alex Gamma; Roberto D Pascual-Marqui; Dietrich Lehmann; D Hell; Franz Vollenweider
Localization of MDMA-induced brain activity in healthy volunteers using low resolution brain electromagnetic tomography (LORETA).
Human brain mapping 2001;14(3):152-65.
2001: Matthias E Liechti; Alex Gamma; Franz Vollenweider
Gender differences in the subjective effects of MDMA.
Psychopharmacology 2001;154(2):161-8.
2001: Alex Gamma; Alfred Buck; Thomas Berthold; Franz Vollenweider
No difference in brain activation during cognitive performance between ecstasy (3,4-methylenedioxymethamphetamine) users and control subjects: a [H2(15)O]-positron emission tomography study.
Journal of clinical psychopharmacology 2001;21(1):66-71.
2001: Alex Gamma; Jules Angst
Concurrent psychiatric comorbidity and multimorbidity in a community study: gender differences and quality of life.
European archives of psychiatry and clinical neuroscience 2001;251 Suppl 2():II43-6.
2000: Matthias E Liechti; M R Saur; Alex Gamma; Daniel Hell; Franz Vollenweider
Psychological and physiological effects of MDMA ("Ecstasy") after pretreatment with the 5-HT(2) antagonist ketanserin in healthy humans.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology 2000;23(4):396-404.
2000: Alex Gamma; Alfred Buck; Thomas Berthold; Matthias E Liechti; Franz Vollenweider; D Hell
3,4-Methylenedioxymethamphetamine (MDMA) modulates cortical and limbic brain activity as measured by [H(2)(15)O]-PET in healthy humans.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology 2000;23(4):388-95.
2000: Matthias E Liechti; C Baumann; Alex Gamma; Franz Vollenweider
Acute psychological effects of 3,4-methylenedioxymethamphetamine (MDMA, "Ecstasy") are attenuated by the serotonin uptake inhibitor citalopram.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology 2000;22(5):513-21.
2000: Alex Gamma; E Frei; Dietrich Lehmann; Roberto D Pascual-Marqui; D Hell; Franz Vollenweider
Mood state and brain electric activity in ecstasy users.
Neuroreport 2000;11(1):157-62.
1999: Franz Vollenweider; Alex Gamma; Matthias E Liechti; T Huber
Is a single dose of MDMA harmless?
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology 1999;21(4):598-600.
1998: Franz Vollenweider; Alex Gamma; Matthias E Liechti; T Huber
Psychological and cardiovascular effects and short-term sequelae of MDMA ("ecstasy") in MDMA-naïve healthy volunteers.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology 1998;19(4):241-51.