TY - JOUR
T1 - 'Developmental delay' reconsidered
T2 - The critical role of age-dependent, co-variant development
AU - Levy, Yonata
N1 - Publisher Copyright:
© 2018 Levy.
PY - 2018/4/23
Y1 - 2018/4/23
N2 - In memory of Annette Karmiloff-Smith. This paper reviews recent neurobiological research reporting structural co-variance and temporal dependencies in age-dependent gene expression, parameters of cortical maturation, long range connectivity and interaction of the biological network with the environment. This research suggests that age by size trajectories of brain structures relate to functional properties more than absolute sizes. In line with these findings, recent behavioral studies of typically developing children whose language development was delayed reported long term consequences of such delays. As for neurodevelopmental disorders, disrupted developmental timing and slow acquisitional pace are hallmarks of these populations. It is argued that these behavioral and neuro-biological results highlight the need to commit to a developmental model which will reflect the fact that temporal dependencies overseeing structural co-variance among developmental components are major regulatory factors of typical development of the brain/mind network. Consequently, the concept of 'developmental delay' in developmental theorizing needs to be reconsidered.
AB - In memory of Annette Karmiloff-Smith. This paper reviews recent neurobiological research reporting structural co-variance and temporal dependencies in age-dependent gene expression, parameters of cortical maturation, long range connectivity and interaction of the biological network with the environment. This research suggests that age by size trajectories of brain structures relate to functional properties more than absolute sizes. In line with these findings, recent behavioral studies of typically developing children whose language development was delayed reported long term consequences of such delays. As for neurodevelopmental disorders, disrupted developmental timing and slow acquisitional pace are hallmarks of these populations. It is argued that these behavioral and neuro-biological results highlight the need to commit to a developmental model which will reflect the fact that temporal dependencies overseeing structural co-variance among developmental components are major regulatory factors of typical development of the brain/mind network. Consequently, the concept of 'developmental delay' in developmental theorizing needs to be reconsidered.
KW - Cortical maturation
KW - Developmental co-variance
KW - Gene expression
KW - Language delay
KW - Temporal dependency
UR - http://www.scopus.com/inward/record.url?scp=85045905843&partnerID=8YFLogxK
U2 - 10.3389/fpsyg.2018.00503
DO - 10.3389/fpsyg.2018.00503
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AN - SCOPUS:85045905843
SN - 1664-1078
VL - 9
JO - Frontiers in Psychology
JF - Frontiers in Psychology
IS - APR
M1 - 503
ER -