Principal Investigator

Lorenza S. Colzato

Lorenza studied cognitive and clinical psychology at the University of Padova, Italy, in 1999. She then moved Leiden University where she obtained her PhD degree (2005) under the supervision of Prof. Lex van der Heijden. Since 2006 she has been Principal Investigator at the Cognitive Psychology Unit of Leiden University.

In 2008, she was awarded with a NWO- Veni grant (250.000 €) to investigate the role of dopamine in cognitive control. In 2013, she won NWO- Vidi grant (800.000 €) to focus on the enhancing effects of tyrosine on cognition.

Since March 2010 she has been Editor in Chief of the open access journal Frontiers in Cognition and since September 2016 of the subscription Journal of Cognitive Enhancement (Springer). She is also a recognized Client-Centered Psychotherapist.

Lab membersLab

Post Doc

Maria-Jesus Maraver

Maria-Jesus: Maria-Jesus completed her PhD in Cognitive Psychology at the University of Granada under the supervision of Prof. Dr. Maria Teresa Bajo and is now working as a postdoc in Lorenza Colzato’s lab. Maria will investigate the link between neurochemistry and behavior using neuro positron emission tomography (PET).

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PhD Students

Bryant Jongkees

Bryant completed his Master’s degree in Cognitive Neuroscience (summa cum laude) at Leiden University and is now working as a PhD student on the role of tyrosine in working memory and its interaction with tDCS.


  • Olga Boer
  • Jennifer M. Becker
  • Alberto de Luca
  • Inga Lück
  • Merve Atli
  • Virginia Cojocaru
  • Roseline van der Houwen
  • Jamy Letzer
  • Cas Teurlings

Emeritus / External Collaborators

Laura Steenbergen

Laura completed her Master’s degree in Cognitive Neuroscience (cum laude) and her PhD at Leiden University. She is currently working as a researcher at Leiden University (Cognitive Psychology), the University of Amsterdam (Clinical Psychology) and the Academic Medical Centre (Medical Psychology), where she investigate how biological processes inside our bodies (brain-gut axis) influence our brain and subsequent behavior. The research she is currently conducting is funded by a Talent Grant I received from Amsterdam Brain and Cogntion (2017), a public-private Enabling Technologies Hotels grant from ZonMw (2017), an a KNAW van der Gaag Scholarschip (2017).