Processing of prior probability: combined evidence from EEG and fMRI data [Elektronische Ressource] / Christina Scheibe

Dissertation Processing of prior probability: combined evidence from EEG and fMRI data Zur Erlangung des akademischen Grades Doctor rerum naturalium (Dr. rer. nat.) Mathematisch-Naturwissenschaftliche Fakultät II der Humboldt-Universität zu Berlin Dekan: Prof. Dr. Peter Frensch Dipl.-Psych. Christina Scheibe Gutachter: 1. Prof. Dr. Werner Sommer 2. Prof. Dr. Hauke Heekeren 3. Prof. Dr. Isabell Wartenburger eingereicht: 15.8.2009 Datum der Disputation: 17.6.2010 Table of contents Abstract 1 Zusammenfassung 2 List of original publications 3 List of abbreviations 5 1 Theoretical background 6 1.1 Introduction 6 1.2 Prior probability and response preparation 6 1.3 Neural correlates of prior probability processing 8 1.4 Trial-to-trial fluctuations in prior probability processing 10 2 Research questions 10 3 Methodological background 11 3.1 Number comparison task 3.2 Electroencephalography (EEG) 12 3.3 Functional magnetic resonance imaging (fMRI) 13 3.4 Simultaneous EEG/fMRI recording 14 4 Conducted studies 15 4.1 Study 1: Modulation of response times by prior probability 15 4.2 Study 2: Effect of prior probability on response preparation 17 4.3 Study 3a: Neural correlates of prior probability processing 18 4.