Behavioral genetics of temperament and frontal asymmetry in early childhood

Ilse C van Wijk¹, Renske Huffmeijer², Jizzo R Bosdriesz³, Marian J Bakermans-Kranenburg⁴, Laura Kolijn⁵, Marinus H van IJzendoorn⁶, Claudia I Vrijhof⁷, Bianca G van den Bulk⁸

Affiliations

¹ Leiden Consortium on Individual Development, Leiden University and VU Amsterdam, The Netherlands; Leiden Institute for Brain and Cognition, Leiden University, the Netherlands. Electronic address: i.c.van.wijk@fsw.leidenuniv.nl.
² Leiden Consortium on Individual Development, Leiden University and VU Amsterdam, The Netherlands; Leiden Institute for Brain and Cognition, Leiden University, the Netherlands. Electronic address: rhuffmeijer@fsw.leidenuniv.nl.
³ Leiden Consortium on Individual Development, Leiden University and VU Amsterdam, The Netherlands; Department of Clinical Child and Family Studies, VU University Amsterdam, The Netherlands. Electronic address: j.bosdriesz@vu.nl.
⁴ Leiden Consortium on Individual Development, Leiden University and VU Amsterdam, The Netherlands; Leiden Institute for Brain and Cognition, Leiden University, the Netherlands; Department of Clinical Child and Family Studies, VU University Amsterdam, The Netherlands. Electronic address: m.j.bakermans@vu.nl.
⁵ Leiden Consortium on Individual Development, Leiden University and VU Amsterdam, The Netherlands; Leiden Institute for Brain and Cognition, Leiden University, the Netherlands; Department of Clinical Child and Family Studies, VU University Amsterdam, The Netherlands. Electronic address: l.kolijn@vu.nl.
⁶ Leiden Consortium on Individual Development, Leiden University and VU Amsterdam, The Netherlands; Department of Pedagogical and Educational Sciences, Erasmus University Rotterdam, The Netherlands; Department of Public Health and Primary Care, University of Cambridge, United Kingdom. Electronic address: marinusvanijzendoorn@gmail.com.
⁷ Leiden Institute of Education and Child Studies, Leiden University, the Netherlands. Electronic address: c.i.vrijhof@fsw.leidenuniv.nl.
⁸ Leiden Consortium on Individual Development, Leiden University and VU Amsterdam, The Netherlands; Leiden Institute for Brain and Cognition, Leiden University, the Netherlands. Electronic address: b.g.van.den.bulk@gmail.com.

PMID: 30579248
DOI: 10.1016/j.jecp.2018.11.015

Behavioral genetics of temperament and frontal asymmetry in early childhood

Ilse C van Wijk et al. J Exp Child Psychol. 2019 Mar.

. 2019 Mar:179:348-361.

doi: 10.1016/j.jecp.2018.11.015. Epub 2018 Dec 19.

Authors

Ilse C van Wijk¹, Renske Huffmeijer², Jizzo R Bosdriesz³, Marian J Bakermans-Kranenburg⁴, Laura Kolijn⁵, Marinus H van IJzendoorn⁶, Claudia I Vrijhof⁷, Bianca G van den Bulk⁸

Affiliations

¹ Leiden Consortium on Individual Development, Leiden University and VU Amsterdam, The Netherlands; Leiden Institute for Brain and Cognition, Leiden University, the Netherlands. Electronic address: i.c.van.wijk@fsw.leidenuniv.nl.
² Leiden Consortium on Individual Development, Leiden University and VU Amsterdam, The Netherlands; Leiden Institute for Brain and Cognition, Leiden University, the Netherlands. Electronic address: rhuffmeijer@fsw.leidenuniv.nl.
³ Leiden Consortium on Individual Development, Leiden University and VU Amsterdam, The Netherlands; Department of Clinical Child and Family Studies, VU University Amsterdam, The Netherlands. Electronic address: j.bosdriesz@vu.nl.
⁴ Leiden Consortium on Individual Development, Leiden University and VU Amsterdam, The Netherlands; Leiden Institute for Brain and Cognition, Leiden University, the Netherlands; Department of Clinical Child and Family Studies, VU University Amsterdam, The Netherlands. Electronic address: m.j.bakermans@vu.nl.
⁵ Leiden Consortium on Individual Development, Leiden University and VU Amsterdam, The Netherlands; Leiden Institute for Brain and Cognition, Leiden University, the Netherlands; Department of Clinical Child and Family Studies, VU University Amsterdam, The Netherlands. Electronic address: l.kolijn@vu.nl.
⁶ Leiden Consortium on Individual Development, Leiden University and VU Amsterdam, The Netherlands; Department of Pedagogical and Educational Sciences, Erasmus University Rotterdam, The Netherlands; Department of Public Health and Primary Care, University of Cambridge, United Kingdom. Electronic address: marinusvanijzendoorn@gmail.com.
⁷ Leiden Institute of Education and Child Studies, Leiden University, the Netherlands. Electronic address: c.i.vrijhof@fsw.leidenuniv.nl.
⁸ Leiden Consortium on Individual Development, Leiden University and VU Amsterdam, The Netherlands; Leiden Institute for Brain and Cognition, Leiden University, the Netherlands. Electronic address: b.g.van.den.bulk@gmail.com.

PMID: 30579248
DOI: 10.1016/j.jecp.2018.11.015

Abstract

Temperament has been suggested to be influenced by genetic and environmental factors. The current study examined genetic shared environmental and unique environmental factors accounting for variation in Fear, Effortful Control (EC), and Frontal Asymmetry (FA) in 4- to 6-year-old children using bivariate behavioral genetic modeling. We included a total of 214 same-sex twin pairs: 127 monozygotic (MZ) and 87 dizygotic (DZ) pairs. FA was measured during a rest electroencephalogram (EEG) recording, and Fear and EC were measured using parent report. Results show that differences between twins were best explained by genetic factors (about a quarter of the variance) and unique environmental factors (about three quarters of the variance). However, the cross-trait, within-twin correlations were not significant, implying no overlapping genetic or environmental factors on Fear and EC or on Fear and FA. Future research should try to elucidate the large role of unique environmental factors in explaining variance in these temperament-related traits.

Keywords: Behavioral genetics; Early childhood; Frontal EEG asymmetry; Temperament.

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Behavioral genetics of temperament and frontal asymmetry in early childhood

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Behavioral genetics of temperament and frontal asymmetry in early childhood

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