Dr. Hasse’s Experience & Research

Here are a few of the places at which Dr. Hasse has worked and conducted research:

HELP University

HELP University

I was part of the academic team on the Masters of Clinical Psychology course at HELP University from August 2019 until February 2022. As a lecturer, I taught subjects on Diagnostic Testing, Child Psychopathology and Ethics, provided supervision to trainees doing their internship in Clinical Psychology and was involved in Master theses.

For more information about HELP University click here (https://university.help.edu.my/course/master-of-clinical-psychology/)

Children’s Research Centre – Okinawa Institute of Science and Technology

During my Doctoral Training, I worked for 6 months at the Children’s Research Centre at the Okinawa Institute of Science and Technology in Japan. The Research Centre is an academic evidence-based clinical center specialized on diagnosis and treatment of children with ADHD run by Professor dr. Gail Tripp. The Children’s Research Centre in Japan gave me a unique opportunity to work in a cross-cultural context and experience the cultural differences in working with American and Japanese children with psychopathology.

For more information about OIST click here (https://groups.oist.jp/adhd)


PraxisP is KU Leuven’s academic outpatient mental health clinic where I completed additional training in Psychological Interventions.

Following, I worked for 4 years as a Clinical Psychologist. I provided psychological assessment and treatment for children, adolescents and adults with various mental health difficulties such as:

  • ADHD,
  • Depression
  • Autism
  • Selective Mutism
  • Anxiety

I have also worked intensively with parents as well as schools in order to provide the necessary assessment and treatment. 

I conducted social skills trainings at schools and I have extensive experience with executive functioning training for adolescents. Executive functioning training focused on developing planning and organization using a motivational approach.

For more information about PraxisP you can view the following page https://ppw.kuleuven.be/PraxisP: The page is in Dutch but you can use Google Translate to read it in English.


In addition to my clinical experience, I have also published research articles and presented at conferences.

I have ongoing research collaborations with Belgium (KU Leuven) and Okinawa (OIST) focusing on learning processes in children with ADHD. Further, I investigate the impact of Covid-19 on mental health in Malaysia which is rewarded with a Starters Grant.

Conference Presentations

I have presented my research at a number of international conferences:

  • 7th Asian Cognitive Behaviour Therapy Conference (ACBTA) – Kuala Lumpur (2021)
  • Association of Behavioural and Cognitive Therapy (ABCT) – New York (2016)
  • International Conference on Child and Adolescent Psychiatry (ICCAP) – Malaysia (2018)
  • European Network of ADHD (Eunethydis) – Berlin (2016), Cologne (2017), Edinburgh (2018) and Nijmegen (2019)


My research has been published in esteemed peer reviewed journals.


  • De Meyer, H., Tripp, G., Beckers, T., Van der Oord, S. (2021). Conditional Learning Deficits in Children with ADHD Can Be Reduced Through Reward Optimization and Response-Specific Reinforcement. Research on Child and Adolescent Psychopathology. doi.org/10.1007/s10802-021-00781-5
  • Hulsbosch, A.K., De Meyer, H., Beckers, T., Danckaerts, M., Van Liefferinge, D., Tripp, G. & Van der Oord, S. (2021) Systematic Review: ADHD and Instrumental Learning. Journal of the American Academy of Child and Adolescent Psychiatry. doi.org/10.1016/j.jaac.2021.03.009
  • De Meyer, H., Beckers, T., Tripp, G., & van der Oord, S. (2019). Deficits in Conditional Discrimination Learning in Children with ADHD are Independent from Delay Aversion and Working Memory. Journal of Clinical Medicine, 8(9) 1381.
  • De Meyer, H., Beckers, T., Tripp, G., & van der Oord, S (2019). Reinforcement Contingency Learning In children with ADHD: Back to the basics of Behavior Therapy. Journal of Abnormal Child Psychology, 47(12), 1889-1902.
  • Hornstra, R., Bosmans, G., Van den Hoofdakker, B., De Meyer, H., & van der Oord, S., (2019). Self-reported attachment styles in children with and without attention-deficit/hyperactivity disorder (ADHD). European Child & Adolescent Psychiatry.
  • Van der Oord, S., Boyer, B., Vandyck, L., Seunarine-MacKay, K., De Meyer, H., & Baeyens, D. (2018). A randomized controlled study of a cognitive behavioral planning intervention for college students with ADHD: an effectiveness study in student counseling services in Flanders. Journal of Attention Disorders, 1-14.

For more information about my research click here (https://www.researchgate.net/profile/Hasse_De_Meyer)