Cover Page The handle

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Cover Page

The handle http://hdl.handle.net/1887/80329 holds various files of this Leiden University

dissertation.

Author: Angelidis, A.

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171 milligram hydrocortison acute aandacht controle versterkt en interferentie door

sterk emotionerende informatie vermindert tijdens acute stress in kwetsbare, hoog-angstige vrouwen met hogere trek aandacht controle – effecten die afhingen van trek sociale angst.

Al met al dragen de huidige bevindingen bij aan begrip van de relaties tussen angst, cognitieve controle en executieve cognitieve prestatie, met name aandachtige verwerking van emotionele informatie. We kunnen concluderen dat spontane frontale TBR mogelijk een betrouwbare marker is van trek cognitieve controle, ook over emotionele informatie. Dreiging-niveau en het tijdverloop van aandacht zijn belangrijke aspecten in onderzoek naar cognitieve affect-regulatie en moeten beschouwd worden in toekomstig onderzoek. Cognitieve controle, ook in interactie met trek angst, is een cruciale factor in onderzoek naar dreiging-gerelateerde aandacht bias maar ook in de effecten van acute stress op executieve prestatie. Daarbij lijkt cognitieve belasting een belangrijke rol te spelen in de effecten van stress op dreiging-interferentie tijdens WG prestatie. De huidige bevindingen suggereren ook dat we een adequate methode hebben ontwikkeld (de combinatie van de L-PAST met en de emotionele n-back taak) om effecten van acute faalangst hierbij te onderzoeken. Hydrocortison toediening zou een effectieve interventie kunnen zijn om de negatieve effecten van acute stress op de verwerking van emotionele informatie in hoog-angstige vrouwen te beperken. De huidige bevindingen bieden een beter begrip van de rol van trek aandacht controle en frontale EEG TBR in de relatie tussen angst en

aandachtige verwerking van emotionele informatie. Hoewel we van mening zijn dat we een goede conceptuele en methodologische aanpak hebben ontworpen voor deze constructen en hun relaties, zal toekomstig onderzoek de relaties tussen cognitieve controle, angst en executieve prestatie moeten repliceren en nader onderzoeken.

Acknowledgements

This dissertation would not have been possible without the help and support of many people. I would like to thank everyone who contributed in any possible way. First of all, I would like to thank the reading and opposition committees for taking the time to review this dissertation.

Peter, I am so grateful that you believed in me and gave me the opportunity to work on a PhD position with you. Your sharp insights, deep knowledge, care for my development, and genuine trust trained me to become an independent researcher. Thank you for being there for me and giving me the space to grow in my own way. Willem, your support was invaluable. Your insights as an expert in clinical psychology always helped me see my work from another perspective, while your guidance was essential in helping me find structure, undergo many obstacles, and make this thesis possible.

I would also like to thank my amazing research assistants, Anastasia and Akrivi. Your high motivation, sharpness, commitment, and joyful spirit were very valuable and put me at ease with the progress of the projects. Also many thanks to all my students who helped with data collection. This thesis would not be possible without you.

I would also like to thank all my colleagues in the department of clinical

psychology for creating such a genuinely positive (I would say “gezellig”) working environment. It was a pleasure working with you. Evin, Niki, Sandy, and Anne, I am so grateful that I met you. Thank you for the support and your warmth during these years. Dana, thank you for sharing this PhD experience with all the

obstacles but also the good times. Meriem, my years in Leiden University would not be the same without you. Thank you for bringing so much joy and going through so many good and hard times.

Special thanks to my paranymphs. You have both supported me and inspired me in so many ways. Anke, it was such a pleasure to have you as a colleague and, especially, as a friend. Thank you for all the good times that we had together. Yorgo, I am so lucky that I have met you. Thank you for supporting me and inspiring me to create so much space in my life.

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Acknowledgements

Finally, I would like to thank my family and friends for their unconditional love, support, and inspiration in life. Dear mother and father, thank you for raising me to be an open person and for your trust in me. My dear brother, it is an

inspiration to see you growing up to be such a wonderful man and to have you as a friend. Dear Aleka, Barbora, Christianna, Christina, Dafni, Dina, Efi, Ericka, Katerina, Maria, Martina, Nick, Taylan and Vivian, I am so lucky to have you in my life. Your love and unique support is indispensable.

Curriculum Vitae

Angelos Angelidis was born on December 26 1986 in Thessaloniki, Greece. In 2004, he completed his secondary education at the 1st_{Public High School of}

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Acknowledgements

Finally, I would like to thank my family and friends for their unconditional love, support, and inspiration in life. Dear mother and father, thank you for raising me to be an open person and for your trust in me. My dear brother, it is an

inspiration to see you growing up to be such a wonderful man and to have you as a friend. Dear Aleka, Barbora, Christianna, Christina, Dafni, Dina, Efi, Ericka, Katerina, Maria, Martina, Nick, Taylan and Vivian, I am so lucky to have you in my life. Your love and unique support is indispensable.

Curriculum Vitae

Angelos Angelidis was born on December 26 1986 in Thessaloniki, Greece. In 2004, he completed his secondary education at the 1st_{Public High School of}

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Publications

Angelidis, A., Kyrgiou, A., van der Wee, N., & Putman, P. Hydrocortisone affects

threat-interference during WM performance under acute stress. Manuscript in preparation.

cognitive interference from threatening and erotic stimuli under acute stress. Manuscript submitted for publication.

Angelidis, A., Chalkia, A., van der Does, W., & Putman, P. The role of cognitive

control on the effects of acute stress on threat-interference during cognitive performance: An EEG study. Manuscript submitted for publication.

Angelidis, A., Solis, E., Lautenbach, F., van der Does, W., & Putman, P. (2019).

I’m going to fail! Acute cognitive performance anxiety increases threat-interference and impairs WM performance. PloS one, 14(2), e0210824. van Son, D., De Blasio, F. M., Fogarty, J. S., Angelidis, A., Barry, R. J., &

Putman, P. (2019). Frontal EEG theta/beta ratio during mind wandering episodes. Biological psychology, 140, 19-27.

van Son, D., Angelidis, A., Hagenaars, M. A., van der Does, W., & Putman, P.

(2018). Early and late dot‐probe attentional bias to mild and high threat pictures: Relations with EEG theta/beta ratio, self‐reported trait attentional control, and trait anxiety. Psychophysiology, 55(12), e13274.

van Son, D., Schalbroeck, R., Angelidis, A., van der Wee, N. J., van der Does, W.,

& Putman, P. (2018). Acute effects of caffeine on threat-selective attention: moderation by anxiety and EEG theta/beta ratio. Biological psychology, 136, 100-110.

Angelidis, A., Hagenaars, M., van Son, D., van der Does, W., & Putman, P.

(2018). Do not look away! Spontaneous frontal EEG theta/beta ratio as a marker for cognitive control over attention to mild and high threat. Biological

psychology, 135, 8-17.

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