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From the trajectory of heritability to the heritability of trajectories

Published online by Cambridge University Press:  13 September 2022

Rogier A. Kievit
Affiliation:
Cognitive Neuroscience Department, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6525 EN Nijmegen, The Netherlandsrogier.kievit@radboudumc.nl
Jessica A. Logan
Affiliation:
Department of Educational Studies, The Ohio State University, Columbus, OH 43210, USAlogan.251@osu.edu
Sara A. Hart
Affiliation:
Department of Psychology, Florida State University, Tallahassee, FL 32308, USAsahart@fsu.edu Department of Psychology, Florida Center for Reading Research, Florida State University, Tallahassee, FL 32310, USA.

Abstract

Although compelling and insightful, the proposal by Uchiyama et al. largely neglects within-person change over time, arguably the central topic of interest within their framework. Longitudinal behavioural genetics modelling suggests that the heritability of trajectories is low, in contrast to high and increasing cross-sectional heritability across development. Better understanding of the mechanisms of trajectories remains a crucial outstanding challenge.

Type
Open Peer Commentary
Copyright
Copyright © The Author(s), 2022. Published by Cambridge University Press

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