Testing the sour-grapes effect [Elektronische Ressource] : how food deprivation and reward expectancy change implicit and explicit food-liking and food-wanting / vorgelegt von Philippe Türk Pereira

Philippe T. Pereira

Sujets

• Psychologie

Informations

• Publié par: julius-maximilians-universitat_wurzburg
• Publié le: 01 janvier 2010
• Nombre de lectures: 10
• Langue: English
• Poids de l'ouvrage: 2 Mo

Extrait

Testing the sour-grapes effect -
how food deprivation and reward expectancy change implicit and
explicit food-liking and food-wanting


Inaugural-Dissertation
zur Erlangung der Doktorwürde der
Philosophischen Fakultät II
der
Julius-Maximilians-Universität Würzburg




vorgelegt von
Philippe Türk Pereira
aus Würzburg


Würzburg, 2010





Testing the sour-grapes effect -
how food deprivation and reward expectancy change implicit and
explicit food-liking and food-wanting


Inaugural-Dissertation
zur Erlangung der Doktorwürde der
Philosophischen Fakultät II
der
Julius-Maximilians-Universität Würzburg




vorgelegt von
Philippe Türk Pereira
aus Würzburg


Würzburg, 2010























Erstgutachter: Professor Dr. Fritz Strack
Zweitgutachter: Professor Dr. Roland Deutsch
Tag des Kolloquiums: _____________________


Acknowledgements

First and foremost, I would like to thank my supervisor Fritz Strack! Dear Fritz, I am very
thankful and blessed that I had the chance to work at your department with so many great
colleagues, despite my firm intentions to also follow other interests! Although it might sound
very banal, I am very sure that I learned much more during my PhD than just scientific skills.
I learned for living! And because this was an invaluable gift for me, I once more would like to
express my gratitude to you.

My profound gratitude also goes to Roland Deutsch, with whom I developed and discussed
the ideas and experiments of my dissertation and who helped and trusted me through all my
ups and downs with his endless professionalism, confidence and warmth. Dear Roland, I owe
you very much! Thank you for everything!

To the same extent I would like to thank Michael Häfner, who escorted my academic career
since my first days as a student in Würzburg. The unbelievable enthusiasm he always brought
towards Social Psychology and our scientific projects was actually the reason, why I decided
to start and end my PhD. Micha, you not only inspired me as a mentor, but also as a true
friend. Thank you so much!

Moreover, I would like to dedicate my deepest thankfulness to my colleague and best friend
Sascha Topolinski, who accompanied me not only professionally but also and foremost
humanly throughout the whole endeavor. Dear Topo, to count every mutual thing that helped
me to remain defiant the last years would certainly go beyond any legal scope. I am sure you
know what you mean to me. Thank you! No, THANK YOU!

My heartfelt gratitude also goes to my colleague and roommate Atilla Höfling. Dear Ati,
although you have been a pain in the neck sometimes, I could not imagine a better person to

share every single working day! Thank you so much for your humor, your scientific
competence and support during my PhD and especially during our DFG project and for your
friendship that surrounded me from morning to night.

Dear Petra, the certainty that there is also another person following the same professional
goals gave me the required confidence in my own PhD project. I think that we have done a
great job, and I thank you for being the brave outrider that I could follow.

I would also like to express my gratitude to my student assistants Andreas Weber, Michael
Schmitt, Moritz Schäfer and Michael Schüssler. Working with you was great. Without your
endless help and valuable ideas around the research the present thesis would not have been
completed to the present day.

Dear Rita, for me, you are an adorable person and I would also like to thank you for your
constant help and patience with my shortcomings and for keeping the department running.

Dear Karl-Heinz, believe me or not, but in some or the other way you too has contributed an
essential amount of help to the realization of my dissertation. None of the many computer
problems was unsolvable for you! Our conversations at lunchtime were always very
interesting and regenerative! Thank you very much!

I also would like to thank my colleagues Arnold Keller and Albin Schmitt for their help
around the department and for the warm friendship we share. You both are certainly one of
the few “Bayern” supporters that I like!

My special thanks also go to my colleagues Wilhelm Hofman and Robert Kordts-Freudinger
for helping me on the meta-analysis. Dear Wilhelmo, dear Roberto, muito obrigado!


As a matter of course, I would also like to thank Beate Seibt, Regina Krieglmeyer, Katja
Stork, Jennifer Meyer, Thomas Stemmler, Matthias Michalik and Georg Förster for being
great colleagues, friends and constant sources of inspiration.

Finally, I would like to express my deepest thankfulness to my family, Mom, Dad, Fabi, Eva,
Julia, Steffi, Patty, Luci, Ulla, Otmar, Sabine, Wolfgang, “Omi” and my partner Sandra for
their emotional support, love, joy and confidence during the last years. I love you!


Ancient Aesop fable „the Fox and the Grapes‟ (author unknown) I
Table of Contents
INTRODUCTION ........................................................................................................ 1
THEORETICAL PART ............................................................................................... 8
Facilitation Effects of Food Deprivation on the Processing and Evaluation of Food
Stimuli ...................................................................................................................................9
Negative Immediate Reactions toward Food Cues due to Food Deprivation ................... 13
Frustrative Nonreward....................................................................................................... 14
The Concept of Dual Attitudes ........................................................................................... 18
Liking versus Wanting ....................................................................................................... 20
The Neurobiology of Liking and Wanting ......... 22
Explicit and Implicit Measures of Liking and Wanting .................................................... 25
The Role of Food Deprivation in Relation to Food-Liking and Food-Wanting ............... 28
Overview of the Present Research and Outlook on the Experiments ............................... 30
EMPIRICAL PART ................................................................................................... 35
Experiment 1....................................................................................... 35
Design .............................................................. 35
Method ............................................................................................. 36
Materials .......................................................... 40
Results .............................................................................................. 41
Discussion ........................................................ 45 II
Experiment 2....................................................................................................................... 48
Design .............................. 50
Method ............................................................................................................................. 50
Materials .......................... 52
Results .............................................................................................................................. 53
Discussion ........................ 58
Experiment 3....................................................................................................................... 62
Design .............................. 63
Method ............................................................................................................................. 63
Materials .......................... 65
Results .............................................................................................................................. 65
Discussion ........................ 73
Experiment 4....................................................................................................................... 77
Design .............................. 79
Method ............................................................................................................................. 80
Materials .......................... 81
Results .............................................................................................................................. 81
Discussion ........................ 84
Meta-analysis on the Dissociation of Implicit Food-Liking and Food-Wanting .............. 87
Results .............................................................................................................................. 89
Discussion ........................ 89
GENERAL DISCUSSION ...................