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Prof. H. (Hanan) Marroun, PhD

Assistant professor

Associate professor

  • Department
  • Child psychiatry



I'm an assistant professor with a background in epidemiology and neuroscience. In my research, I combine these two themes. My research area in general is how pregnancy health relates to later neurodevelopment in offspring. In this field, I investigate the short and long term consequences of maternal and foetal health on brain development (structure, function, cognition and behaviour). My studies focus on non-optimal health during this specific period (e.g. substance use, medication, nutrition, stress, urban environment and disease) and show that it may have potential long term consequences. 
Next to this, I also teach at the Erasmus University Rotterdam, at the Department of Psychobiology, Education and Child Studies.

Profile on ResearchGate

Education and career

I have a Bachelor of Science in Biomedical Science and a Master of Science in Neuroscience and Master in Epidemiology.


1: El Marroun H, Bolhuis K, Franken IHA, Jaddoe VWV, Hillegers MH, Lahey BB,
Tiemeier H. Preconception and prenatal cannabis use and the risk of behavioural
and emotional problems in the offspring; a multi-informant prospective
longitudinal study. Int J Epidemiol. 2018 Sep 18. doi: 10.1093/ije/dyy186. [Epub 
ahead of print] PubMed PMID: 30239742.

2: Guxens M, Lubczyńska MJ, Muetzel RL, Dalmau-Bueno A, Jaddoe VWV, Hoek G, van
der Lugt A, Verhulst FC, White T, Brunekreef B, Tiemeier H, El Marroun H. Air
Pollution Exposure During Fetal Life, Brain Morphology, and Cognitive Function in
School-Age Children. Biol Psychiatry. 2018 Aug 15;84(4):295-303. doi:
10.1016/j.biopsych.2018.01.016. Epub 2018 Jan 31. PubMed PMID: 29530279.

3: Bolhuis K, Kushner SA, Yalniz S, Hillegers MHJ, Jaddoe VWV, Tiemeier H, El
Marroun H. Maternal and paternal cannabis use during pregnancy and the risk of
psychotic-like experiences in the offspring. Schizophr Res. 2018 Jul 5. pii:
S0920-9964(18)30411-0. doi: 10.1016/j.schres.2018.06.067. [Epub ahead of print]
PubMed PMID: 29983267.

4: El Marroun H, Schmidt MN, Franken IH, Jaddoe VW, Hofman A, van der Lugt A,
Verhulst FC, Tiemeier H, White T. Prenatal tobacco exposure and brain morphology:
a prospective study in young children. Neuropsychopharmacology. 2014
Mar;39(4):792-800. doi: 10.1038/npp.2013.273. Epub 2013 Oct 7. PubMed PMID:
24096296; PubMed Central PMCID: PMC3924517.

5: El Marroun H, Jaddoe VW, Hudziak JJ, Roza SJ, Steegers EA, Hofman A, Verhulst 
FC, White TJ, Stricker BH, Tiemeier H. Maternal use of selective serotonin
reuptake inhibitors, fetal growth, and risk of adverse birth outcomes. Arch Gen
Psychiatry. 2012 Jul;69(7):706-14. doi: 10.1001/archgenpsychiatry.2011.2333.
PubMed PMID: 22393202.

6: El Marroun H, Tiemeier H, Steegers EA, Jaddoe VW, Hofman A, Verhulst FC, van
den Brink W, Huizink AC. Intrauterine cannabis exposure affects fetal growth
trajectories: the Generation R Study. J Am Acad Child Adolesc Psychiatry. 2009
Dec;48(12):1173-81. doi: 10.1097/CHI.0b013e3181bfa8ee. PubMed PMID: 19858757.