Dr. rer. nat. Sven Hoffmann

• Psychophysiology
• Journal of Social Neuroscience
• Brain Research
• Journal of Psychophysiology
• Journal of Neurology

Academic background

• since 2009 Post-doc researcher at the IfADo (Perceptional cybernetics, Prof. E. Wascher)
• 2009 PhD, Doctoral thesis: "Independent Component Analysis of Ocular Artifacts", University of Bochum (PD Dr. B. Suchan & Prof. Dr. M. Falkenstein)
• 2008-2009 research associate at the University of Wuppertal; Section G (Psychology); Methods and Psychological Diagnostics (Prof. Dr. R. Schulze)
• 2007-2009 PhD student at the IfADo research group "Ageing and CNS alterations". DFG-project ( DFG FA 211/13-1): "The relation between error related potentials and response monitoring and their dependency on ageing".
• 2007-2008, junior researcher at the IfADo research group "Ageing and CNS alterations". Project "Neurophysiological and educational aspects of second language acquisition", part of the program: "NIL: Neuroscience, Instruction, Learning", founded by the Federal Ministry of Education and Research within the framework program "Das Denken verstehen"
• 2006-2007 junior researcher, IfADo research group "Modern Human-Machine-Systems" (PD Dr. G. Rinkenauer)
• 2006 Diploma degree in Psychology (Wuppertal University). Major subjects: Clinical Psychology and Occupational- and Organizational Psychology. Diploma thesis: "The psychophysiology of eye blinks: Evaluation of two procedures to correct the EEG for ocular artefacts" (in german). Tutors: Prof. Dr. G. Sartory (Wuppertal University) and Prof. Dr. M. Falkenstein

Research interests

• executive functions
• error monitoring
• visual awareness
• ocular artefacts
• psychophysiological methods
• learning and ageing
• event-related potentials
• multivariate analysis

Current research

research group "Ageing and CNS alterations"

• error processing and detection
• executive functions and learning

Teaching

• Seminar: Introduction to SPSS, University of Dortmund
• Seminar: Multivariate analysis, University of Wuppertal
• Seminar: Non-parametric methods, University of Wuppertal
• Psychological tests, University of Wuppertal
• Seminar: Methods and application , University of Wuppertal
• Seminar: Fundamentals of experimental designs, University of Wuppertal

Selected publications

• Beste, C.; Otto, T. & Hoffmann, S. The Biopsychology-Nonlinear Analysis Toolbox: A Free, Open-Source Matlab-Toolbox for the Non-linear Analysis of Time Series Data. Neuroinformatics, 2010, in press

• Hoffmann, S. & Falkenstein, M. Independent component analysis of erroneous and correct responses suggests online response control. Human Brain Mapping,  2010, in press

Additional Information

Useful Links:

EEGLAB: http://sccn.ucsd.edu/eeglab/
Matlab-Toolbox for EEG/MEG-analysis

Biopsychology-Nonlinear Analysis Toolbox (Beste, Otto & Hoffmann): http://biopsynltoolbox.sourceforge.net/
A Matlab toolbox for nonlinear analysis of time series.

GNU R: http://www.r-project.org/
Statistics environment

Anleitung um Repeated Measures ANOVAs mit GNU R zu berechnen: http://gribblelab.org/2009/03/09/repeated-measures-anova-using-r/
Quite useful overview how to conduct repeated measures ANOVA with R (including estimation of sphericity violation)