Seasonal variations of neuromotor development by 14 months of age: Hamamatsu Birth Cohort for mothers and children (HBC Study)

Autor: Yasuhide Iwata, Katsuaki Suzuki, Maiko Honda, Ismail Thanseem, Kenji J. Tsuchiya, Nori Takei, Kazuhiko Nakamura, Ayyappan Anitha, Hideo Matsuzaki, Norio Mori, Hiroshi Tsutsumi, H. B. C. Study Team, Kaori Matsumoto, Makiko Narumiya
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Male
Pediatrics
Atmospheric Science
Time Factors
Anatomy and Physiology
Epidemiology
First year of life
Developmental and Pediatric Neurology
Social and Behavioral Sciences
Cohort Studies
Child Development
Learning and Memory
Japan
Medicine
Psychology
Pediatric Epidemiology
Motor skill
Psychiatry
Child Psychiatry
Multidisciplinary
Geography
Confounding
Child Health
Mother-Child Relations
Mental Health
Biogeography
Motor Skills
Female
Seasons
Public Health
Birth cohort
Environmental Health
Cohort study
Research Article
medicine.medical_specialty
Clinical Research Design
Science
Gross motor skill
Neurophysiology
Neurological System
Environmental Epidemiology
Meteorology
Developmental Neuroscience
Humans
Learning
Biology
Motor Systems
Population Biology
business.industry
Infant
Newborn
Cognitive Psychology
Infant
Child development
Earth Sciences
Neonatology
business
Physiological Processes
Breast feeding
Chronobiology
Psychomotor Performance
Neuroscience
Zdroj: PLoS ONE, Vol 7, Iss 12, p e52057 (2012)
PLoS ONE
ISSN: 1932-6203
Popis: The present study aimed at investigating whether neuromotor development, from birth to 14 months of age, shows seasonal, cyclic patterns in association with months of birth. Study participants were 742 infants enrolled in the Hamamatsu Birth Cohort (HBC) Study and followed-up from birth to the 14th month of age. Gross motor skills were assessed at the ages of 6, 10, and 14 months, using Mullen Scales of Early Learning. The score at each assessment was regressed onto a trigonometric function of months of birth, with an adjustment for potential confounders. Gross motor scores at the 6th and 10th months showed significant 1-year-cycle variations, peaking among March- and April-born infants, and among February-born infants, respectively. Changes in gross motor scores between the 10th and 14th months also showed a cyclic variation, peaking among July- and August-born infants. Due to this complementary effect, gross motor scores at the 14th month did not show seasonality. Neuromotor development showed cyclic seasonality during the first year of life. The effects brought about by month of birth disappeared around 1 year of age, and warmer months seemed to accelerate the neuromotor development.
Databáze: OpenAIRE
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