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Publié par | universitat_bremen |
Publié le | 01 janvier 2008 |
Nombre de lectures | 280 |
Langue | Deutsch |
Poids de l'ouvrage | 9 Mo |
Extrait
Aus der
Abteilung für Neuropsychologie und Verhaltensneurobiologie
Zentrum für Kognitionswissenschaften (ZKW)
Emotions in Motion:
Processing of Dynamic and Static Facial Expressions
of Happiness and Disgust Investigated
d EEG RI anMFby
Dissertation zur Erlangung der Doktorwürde
durch den
ss Dr. phil. uotionsausschmPro
der Universität Bremen
gelegt von vor
Dipl.-Psych. Sina Alexa Trautmann
n 15eBremen, d 2008 . Juli
1. Gutachter: Prof. Dr. Dr. Manfred Herrmann
2. Gutachterin: Prof. Dr. Canan Basar-Eroglu
Tag des öffentlichen Kolloqiums: 5. November 2008
Sina Alexa Trautmann
“Wenn wir an u
glauben, sere Stärkenn
werden wir
täglich stärker.”
(Mahatma Gandhi)
I
Sina Alexa Trautmann
ntentsCoAcknowledgments.....................................................................................................................V
Zusammenfassung....................................................................................................................VI
Abstract....................................................................................................................................IX
Keywords.................................................................................................................................XI
Abbreviations..........................................................................................................................XII
List of Tables.........................................................................................................................XIV
List of Figures........................................................................................................................XV
1 General introduction...........................................................................................................1
1.1 Structure of the present thesis....................................................................................1
1 .................................................................................................Definition of emotion1.2 1.2.1 Psychological concepts of emotion....................................................................2
1.2.2 Excursion: folk concepts versus scientific concepts of emotion........................3
1.3 The fascination of facial expressions.........................................................................4
1.4 General models of face and emotional face perception.............................................6
1.4.1 The modified face perception model by Haxby and colleagues (2000).............7
1.4.2 The emotional face perception model by Adolphs (2002).................................8
1.5 Emotional face processing in static versus dynamic stimuli....................................10
1.6 A brief overview of applied methods.......................................................................11
1.6.1 FMRI and BOLD signal...................................................................................11
1.6.2 EEG, ERPs, source analysis.............................................................................11
1.7 Aims and scope of the present studies.....................................................................13
2 Study 1: fMRI study of dynamic and static facial expression processing of happiness and
15 .......................................................................................................................................ustdisg2.1 Introduction: evidence from fMRI studies investigating emotion processing.........15
2.1.1 Distinct networks of emotion processing revealed by fMRI............................15
2.1.2 The use of dynamic stimulus material in emotion perception.........................15
2.1.3 Goals and hypotheses of the present fMRI study.............................................17
2.2 Material and methods: fMRI study..........................................................................17
17 .......................................................................................................2.2.1 Participants2.2.2 Data protection, data security and legal framework.........................................18
2.2.3 Experimental procedure: study design and strategies of data analyses............19
2.2.4 Behavioral measures: rating of stimulus material............................................21
2.2.5 Evaluation study of stimulus material..............................................................22
II
Sina Alexa Trautmann
2.2.6 Functional magnetic resonance imaging (fMRI).............................................22
24 ......................................................................................................................2.3 Results2.3.1 Behavioral data.................................................................................................24
2.3.2 FMRI data........................................................................................................25
2.4 General discussion of imaging data.........................................................................29
30 .........................................................................essingEmotional stimulus proc2.4.1 2.4.2 Possible reasons for the lack of insula activation in disgust............................33
2.4.3 Validity of dynamic compared to static facial expressions..............................34
2.4.4 BOLD activation in static emotional facial expressions..................................35
2.4.5 Network complexity.........................................................................................36
2.5 Preliminary conclusions of the fMRI study.............................................................37
3 Study 2: EEG study of static and dynamic facial expression processing of happiness and
disgust.......................................................................................................................................38
3.1 Introduction: evidence from ERP and source analysis studies examining emotion
38 .............................................................................................................................gprocessin39 ..................................................................................................................3.1.1 P10040 .................................................................................................................3.1.2 N1703.1.3 EPN (Early Posterior Negativity).....................................................................43
3.1.4 LPP (Late Positive Potential)...........................................................................45
3.1.5 Source analysis approaches in emotion processing studies.............................47
3.1.6 Dynamic facial expressions and ERPs.............................................................49
3.1.7 Hypotheses and goals of the present EEG study..............................................49
3.2 Material and methods: EEG study...........................................................................51
51 .......................................................................................................3.2.1 Participants3.2.2 Data protection, data security and legal framework.........................................51
3.2.3 Experimental procedure: study design and strategies of data analyses............52
3.2.4 Behavioral measures: rating of stimulus material............................................52
53 ..................................................................................ERPs and source models3.2.5 63 ......................................................................................................................3.3 Results3.3.1 Behavioral data.................................................................................................63
64 ...........................................................................................................data3.3.2 ERP 3.3.3 Source analysis data.........................................................................................70
3.4 General Discussion of EEG data..............................................................................78
3.4.1 Behavioral data.................................................................................................78
III
4
Sina Alexa Trautmann
3.4.2 ERP 79 ...........................................................................................................data
3.4.3 Source analysis.................................................................................................92
3.4.4 Ecological validity of dynamic facial expressions.........................................105
General discussion and integration of fMRI and EEG data...........................................109
4.1 Limitations.............................................................................................................109
4.1.1 Limitations of the combination of the two studies of the present thesis........109
4.1.2 Methodological considerations among studies per se....................................111
4.2 Critical review of the integration of fMRI and EEG..............................................112
4.3 Integration of the results of the present thesis with the emotional face perception
117 ...............................................................................................02)m