Dr. Steffen Landgraf

Research interests

1. Cognitive Effectiveness and Efficiency
2. Cognitive Deficits and there Compension
3. Topics: Psychopathology (schizophrenia, pedophilia, psychopathy), intelligence, arithmetic cognition, knowledge representation
4. Methods: Neuropsychology, occulometry (eye movement analyses), pupilometry, function imaging (fMRI)

Since 04/2012
Researcher, Department of Forensic Psychiatry and Psychotherapy, University of Regensburg, Germany.

Since 08/2010    
Associate Researcher, Berlin School of Mind and Brain, Humblodt-Universität zu Berlin, Germany.

08/2010 – 04/2012
Postdoctoral Fellow, Humboldt-Universität zu Berlin, Institute of Psychology, Berlin, Germany.

2007 - 2010    
Cotutored Ph.D., Sorbonne Université (UPMC, Paris VI) France & Humboldt-Universität zu Berlin, Germany.
Topic:    Cognitive markers in early psychosis: reference frames in spatial cognition and visual scanning-strategies as stage markers in schizophrenia.
Supervisors:    Prof. E. van der Meer, Humboldt-Universität Berlin, Germany.
Prof. J.P. Olié, Sainte Anne Hôpital, Paris, France.

Grade:         Summa Cum Laude

2004 - 2007     M.A., Psychology, Humboldt-Universität zu Berlin, Germany.
Concentrations:  cognitive psychology, psychiatric research, oculometry.
Thesis:  Eye movement patterns during script analysis.

2001 - 2004      B.A., Psychology and Spanish, Honors program, University of Minnesota, Minneapolis, USA.
Concentrations: clinical psychology, EEG, South American literature.
Thesis: Paternal psychopathology and P3 amplitude reduction in the offspring of fathers with substance use disorders.

2000    Abitur (high school diploma), Pierre-de-Coubertin Gymnasium Berlin, Germany.

Grants/Scholarships:

2011      DAAD fellow (mobility grant)
Poster at the 41st Annual Meeting of the Society for Neuroscience, Washington D.C., USA.

2010      Center for Integrative Life Science (Berlin School of Mind and Brain) post-doc position

2010      Societé des Neurosciences (mobility grant)
Poster at the 7th Forum of European Neuroscience (FENS) in Amsterdam, Netherlands.

2010      Elsa-Neumann fellow
Federal young researcher support by the state (Bundesland) of Berlin.

2009     DAAD fellow (mobility grant
Talk at the 44th Australian Psychological Society Annual Conference in Darwin, Australia.

2008      DFG fellow (mobility grant)
Poster at the 38th Annual Meeting of the Society for Neuroscience in Washington D.C., USA.

2008      French-German University fellow
Cotutored Ph.D. at the Sainte Anne Hôpital Paris and the Humboldt-Universität zu Berlin.

2008      KKGS-Stiftung fellow (Konsul-Karl-und-Dr.-Gabriele-Sandmann-Stiftung, Ph.D. scholarship, 2 years)

2007      DAAD fellow (Ph.D. scholarship, 6 months)

2006      ‚Leonardo da Vinci’ & ‚Sokrates’ programs
Université Paris V & Hôpital Sainte Anne, Paris, France.

2004          Undergraduate Research Opportunity Program
University of Minnesota, Minneapolis, USA.

2001    Athletic Scholarship (3 years)
Track and Field Team, University of Minnesota, Minneapolis, USA.

Awards/Honors:

2012      Winner of the 15th Berlin Science Slam SO36, Berlin, Germany

2012      Nomineé for the Adlershof Dissertation Price, Humboldt-University (Berlin, Germany).

2011      Young Investigator Award
Bounded Rationality Summer Institute (Berlin, Germany).

2010      Einstein Young Scholar Award ‘Falling Walls’ conference (Berlin, Germany).

2010      Trainee Abstract Award
Organization for Human Brain Mapping (Barcelona, Spain).

2010      Young Scientist Award
VIII International Symposium on Schizophrenia (Berne, Switzerland).

2010      Young Investigator Award
‘Changing People, Changing Brains’ conference (Konstanz, Germany).

2009      Young Scientist Award
World Federation of Societies of Biological Psychiatry (Paris, France).

Member of:     Society for Cognitive Neuroscience (USA)
Society for Neuroscience (USA)
Deutsche Gesellschaft für Psychologie (GER)
Societé des Neurosciences (F)

Reviewer for:    Schizophrenia Research (impact factor: 5.1)
Brain and Cognition (IF: 3.0)

2007        Research Assistant, NIH, Washington D.C., USA (3 months).

2006        Psychiatric Research Assistant, Hôpital Sainte Anne,Paris,France (9 months).

2004         Student Assistant, University of Minnesota, USA (6 months).

2003          Sutdent Assistant, VA Medical Center, Minneapolis, USA (12 months).

WS 2011/12        Seminar „Scientific Working Methods“ (HU Berlin)

WS 2011/12        Seminar „Topics in Perception“ (HU Berlin)

SS 2011            Seminar „visual spatiality“ (HU Berlin)

SS 2011            Lecture „Perception and attention“ (HU Berlin)

WS 2009/10        Seminar „visual spatiality“ (Humboldt-Universität zu Berlin)

Publikations:

2011

In Revision

Landgraf, S.; Steingen, J.; Eppert, Y.; Niedermeyer, U.; van der Meer, E.; Krueger, F. (2011). Temporal information processing in short- and long-term memory of patients with schizophrenia. PLoS One, 6(10).

Landgraf, S.; Beyer, R.; Pannekamp, A.; Schaadt, G.; Koch, D.; Foth, M.; van der Meer, E. (2011). Dissociating improvement of attention and intelligence during written language acquisition in adults. International Journal of Intelligence Science, 1(2), 17-24.

Landgraf, S.; Amado, I.; Brucks, M.; Krueger, F.; Krebs, M.-O.; van der Meer, E.; (2011). Inflexible information acquisition strategies mediate visuo-spatial reasoning in stabilized schizophrenia patients. The World Journal of Biological Psychiatry, 12(8), 608-619.

Landgraf, S.; Amado, I.; Ries, J.; Purkhardt, R.; Olié, J.-P. ; van der Meer, E. (2011). Visuo-spatial cognition in schizophrenia: Confirmation of a preference for local information processing. Schizophrenia Research, 127 (1-3), 163-170.

Amado I.; Lupianez, J.; Chirio M.; Landgraf, S.; Willard, D.; Olié, J.P.; Krebs, M.-O. (2011). Alertness can be improved by an interaction between orienting attention and alerting attention in schizophrenia. Behavioral and Brain Functions, 7(1).

2010

Landgraf, S.; Krebs, M.-O.; Olié, J.-P.; van der Meer, E.; Berthoz, A.; Amado, I. (2010). Real world referencing and schizophrenia: are we experiencing the same reality? Neuropsychologia, 48(10), 2922-2930.

Krueger, F.*; Landgraf, S.*; van der Meer, E.; Desphande, G.; Hu, X. (2010). Effective connectivity of the multiplication network: A functional MRI and multivariate Granger causality mapping study. Human Brain Mapping, 32(9), 1419-1431. * the authors contributed equally to this work.

Landgraf, S.; van der Meer, E.; Krueger, F. (2010). Cognitive resource allocation dissociates task-general and task-specific neuronal activity underlying mathematical cognition: A Multi-Method Study. International Journal of Mathematical Education, 42 (6), 579-590.

2009

Picard, H.J.; Amado, I.; Bourdel, M.-C.; Landgraf, S.; Olié, J.-P.; Krebs, M.-O. (2009). Correlates between neurological soft signs and saccadic parameters in schizophrenia. Prog Neuropsychopharmacol Biol Psychiatry, 33 (4), 676-81.

2008

Landgraf, S.; Amado, I.; Bourdel, M.-C.; Leonardi, S.; Krebs, M.O. (2008). Memory-guided saccade abnormalities in schizophrenic patients and their full biological siblings. Psychological Medicine, 38(6), 861-870.

Amado, I.; Landgraf, S.; Bourdel, M.-C.; Leonardi, S.; Krebs, M.O. (2008). Predictive saccades are impaired in schizophrenics and their full biological siblings. Journal of Neuroscience and Psychiatry, 33(1), 17-22.

Krueger, F.; Spampinato, M.V.; Pardini, M.; Pajevic, S.; Wood, J.N.; Weiss, G.H.; Landgraf, S.; Grafman, J. (2008). Integral calculus problem solving: An fMRI investigation. Neuroreport, 19(11), 1095-9.

2010

2007

Landgraf, S.; Hagendorf, H.; van der Meer, E. (2007). Augenbewegungsmuster bei der Verarbeitung von Skripten. [Eye movement patterns during script processing]. Unpublished Master’s Thesis. Humboldt University Berlin

2012

2011

Landgraf, S. (2011). Expectancy during temporal judgements of scripts. A pupillary and eye movement study. 29th Pupil Colloquium. 25.-29.09.2011 in Tübingen

Preusse, P.; Wartenburger, I.; van der Meer, E.; Landgraf, S. (2010). Der richtige Moment entscheidet. Schüler mit hoher fluider Intelligenz nutzen effizientere Blickbewegungsstrategien. 37. Tagung “Psychologie und Gehirn”. 23.-25.06.2011 in Heidelberg, Deutschland.

Landgraf, S.. Resource Allocation in Mathematical Cognition: Evidence from Pupillometry and fMRI. 10th Conference of the German Society for Cognitive Science. 03.-06.10.2010 in Potsdam

Landgraf, S.; Amado, I.; van der Meer, E. (2010). Strategic information acquisition mediates visuo-spatial reasoning in chronic patients with schizophrenia. 8th International Symposium on Schizophrenia (ISSB). Young Scientist Award. 15./16.04.2010 in Bern, Schweiz.

Landgraf, S.; Amado, I.; van der Meer, E. (2010). New task, new strategy? Inflexible information acquisition mediates visuo-spatial task  performance in chronic schizophrenia patients. ‘Changing people, changing brains’ conference. Young Investigator Award. 08.04.-10.04.2010 in Konstanz

Landgraf, S.; Amado, I.; Picard, H.; Olié, J.-P.; van der Meer, E.; Berthoz, A. (2009). Visual-spatial perspective taking in chronic schizophrenia patients. 44th Australian Pscyhological Society Annual Conference. 30.09.-04.10.2009 in Darwin, Australien.

Landgraf, S.; Amado, I.; Krebs, M.-O.; Olié, J.-P.; van der Meer, E.; Berthoz, A. (2009). Visual-spatial perspective taking in schizophrenia. 2nd European Conference on Schizophrenia Research. 21.09.-23.09.2009 Berlin

Landgraf, S.; Amado, I.; Preusse, F.; Purkhardt, R.; Krebs, M.-O.; Olié, J.-P.; van der Meer, E. (2009). Different task, different strategy? Inflexible information acquisition mediates visuo-spatial task performance in chronic schizophrenia patients. 15th European Conference on Eye Movements. 24.08.-27.08.2009 in Southampton, Grossbritannien.

Landgraf, S.; Amado, I.; Picard, H.; Olié, J.-P.; van der Meer, E.; Berthoz, A. (2009). Spatial Reference in Schizophrenia. 10th World Congress of Biological Psychiatry. Young Scientist Award, 28.06.-02.07.2009 in Paris, Frankreich.

Landgraf, S.; van der Meer, E.; Krueger, F. (2011). Temporal information processing in schizophrenia. 41. Annual Meeting of the Society for Neuroscience 12.-16.11.2011 in Washington, D.C., USA.

Landgraf, S.. Time distortions in schizophrenia. Hanse-Wissenschaftskolleg (HWK), 31.10.-2.11.2011 in Delmenhorst

Landgraf, S.; Preusse, F.; Wartenburger, I., van der Meer, E.. Analogical reasoning in individuals with high fluid intelligence is mediated by eye movement strategies. 16. European Conference on Eye Movements, 21.-25.08.2011 in Marseille, Frankreich.

Landgraf, S. (2011). Strategic inefficiency in schizophrenia. Summer Institute on Bounded Rationality. Young Investigator Award, Max Planck Institute for Human Development, 21.-28.07.2011 in Berlin

Landgraf, S., Raisig, S.; van der Meer, E. (2011). Expectancy during temporal judgments of scripts: A pupillary and eye movement study. 8th International  Brain Research Organisation (IBRO), 14.-18.07.2011 in Florenz, Italien.

Landgraf, S.; Gadel, R.; Krebs, M.-O.; Amado, I.; (2010). Partial preservation of executive function development in schizophrenia: Evidence from task shifting and inhibition. 7th Forum of European Neuroscience, 3.-7.07.2010 in Amsterdam, Niederlande.

Landgraf, S.; van der Meer, E.; Krueger, F. (2010). Resource Allocation in Mathematical Cognition: Evidence from fMRI and Pupillometry. 16th Annual Meeting of the Organization for Human Brain Mapping. Trainee Abstract Award. 6.-10.06.2010 in Barcelona, Spanien.

Preusse, F., Landgraf, S., van der Meer, E., Wartenburger, I. (2009). LOOK AT THIS! High-school students with high fluid intelligence use shorter fixation durations in a geometric reasoning task. 15th European Conference on Eye Movements (ECEM), 23-27.08.2009 in Southampton, UK.

Willard, D.; Chayet, M.; Johais, M.; Bendjemaa, N.; Todd, A.; Languerand, E.; Landgraf, S.; Morvan, Y.; De Vigneral, N.; Magaud, E.; Krebs, M.-O. (2009). Le rôle et les missions du psychologue clinicien dans une unité de recherche. [The psychologist’s role and mission in a clinical research setting]. 7ème Congres de l’Encéphale, 22.-24.01.2009 in Paris, Frankreich.

Picard, H.; Amado, I.; Bourdel, M.C.; Landgraf, S.; Olie, J.P.; Krebs, M.-O. (2009) Corrélations entre les signes neurologiques mineurs et des paramètres saccadiques dans la schizophrénie. [Correlations between neurological soft signs and saccadic parameters in schizophrenia]. 7ème Congres de l’Encéphale, 22.-24.01.2009 in Paris, Frankreich.

Magaud, E.; Willard, D.; Chauchot, F.; Gut, A.; Canceil, O.; Landgraf, S.; Kazes, M.; Krebs, M.-O. (2009) Fluence verbale et sujets a risque de psychose: un potentiel marqueur trait? [Verbal fluency and subjects at high-risk for developing psychosis: a potential trait marker?]. 7ème Congres de l’Encéphale, 22.-24.01.2009 in Paris, Frankreich.

Landgraf, S.; Amado, I.; Bourdel, M.C.; Leonardi, S.; Picard, H.; Olie, J.P.; Krebs, M.O. Anomalies aux saccades mémorisées retrouvées chez des patients schizophrènes et leurs apparentés sains. [Memory-guided saccades are impaired in schizophrenic patients and their healthy relatives]. 6ème Congres de l’Encéphale, 24.-26.01.2008 in Paris, Frankreich.

Landgraf, S.; Kebir, O.; Tabbane, K.; Lupianez, J.; Krebs, M.O.; Olié, J.P.; Amado, I. Attention Networks in Schizophrenia. Modulation of cognitive control by disease duration, intellectual functioning, and genetic risk. 50th Collegium Internationale Neuro-Psychophamacologicum (CINP) 13-17.07.2008 in München

Landgraf, S.; Desphande, G.; van der Meer, E.; Krueger, F. (2008). Functional Connectivity during Multiplication: A functional magnetic resonance resonance imaging (fMRI) and Granger causality mapping (GCM) analysis. 38th Annual Meeting of the Society for Neuroscience, 15-19.11.2008, Washington D.C., USA.

Chirio, M.; Landgraf, S.; Luipianez, J.; Willard, D.; Bourdel, M.C.; Olie, J.P.; Krebs, M.O.; Vanelle, J.M.; Amado, I. Modulation du contrôle exécutif par l’alerte et l’orientation attentionnelle chez des schizophrènes  stabilisés et des fratries. Perspectives pour la remediation cognitive. [Modulation of executive control by the alerting and orienting attentional network in stabilized schizophrenic patients and their siblings]. 6ème Congres de l’Encéphale, 24.-26.01.2008 in Paris, Frankreich.

Raisig, S.; Welke, T.; Hagendorf, H.; Landgraf, S.; van der Meer, E. Mental representation of temporal information in event sequences. XXIX International Congress of Psychology (ICP) 20.-25.07.2008 in Berlin

Landgraf, S.; Amado, I.; Bourdel, M.-C.; Leonardi, S.; Krebs, M.O. Memory-guided saccade abnormalities in schizophrenic patients and their full biological siblings. European Conference on Eye Movements 19.-23.08.2007 in Potsdam

Van der Meer, E.; Kramer, J.; Wartenburger, I.; Beyer, R.; Warmuth, E.; Heekeren, H.R.; Foth, M.; Brucks, M.; Horn, J.; Bornemann, B.; Ries, J.; Christian, J.-O.; Purkhardt, R.; Landgraf, S.; Ernst, K.; Bublitz, S.; Ullwer, D.; Preusse, F. Short-term vs. long-term learning in mathematical cognition: cerebral correlates, domain impacts, & sources of individual differences. Neuroscience Instruction Learning Conference, 21./22.11.2007 in Berlin

2010