Page 9 - Emotions through the eyes of our closest living relatives- Exploring attentional and behavioral mechanisms

been possible. Thank you, Thomas Bionda, for facilitating the great ape studies at Apenheul, and Wendy Cieremans as well as Apenheul’s volunteers for facilitating the research with visitors. I am grateful for having had the chance to work in such an exciting and beautiful environment.
I thank my participants, ape and human alike, for taking part in my studies, and the many students who helped with collecting all the data. Thank you to the technical support staff: Maureen Meekel, Evert Dekker, Elío Sjak-Shie, and Iris Spruit, for building custom-made devices and scripts to help with data acquisition and analyses. I also thank the doctorate committee for investing their valuable time in reading and evaluating my work, and for providing helpful feedback.
Thank you to my dear friends, Leonie Groeneveld, Sander Geuke, and Samantha Lems, for your never-ending support. You have been there with me all the way, and are truly the best! Jeannot van Berlo, thank you for being my creative, free-spirited brother. Jos van Riet and Thea van Riet-Sprengers, my parents-in-law, thank you for your guidance when I needed it the most. My aunt Mieke Spaetjens-Beerens and uncle Gerard Spaetjens: thank you for reading my Dutch summary and helping me improve it. Thank you to my sweet parents, Corry van Berlo-Beerens and Ger van Berlo, for always believing in me. Thank you for having taught me to never stop asking questions, and to persevere in the face of hardships. Without you, I would not have been where I am now. Finally, I thank you, Martijn van Riet, my fantastic boyfriend. Thank you for your unconditional support, your guidance, love, and trust. You are my beacon and my anchor. I love you.
Evy van Berlo November 19th, 2021, The Hague