Impact of frequency of internet use on development of brain structures and verbal intelligence: Longitudinal analyses

Hikaru Takeuchi, Yasuyuki Taki, Kohei Asano, Michiko Asano, Yuko Sassa, Susumu Yokota, Yuka Kotozaki, Rui Nouchi, Ryuta Kawashima

研究成果: Article査読

18 被引用数 (Scopus)

抄録

Excessive internet use is shown to be cross sectionally associated with lower cognitive functioning and reduced volume of several brain areas. However, the effects of daily internet use on the development of verbal intelligence and brain structures have not been investigated. Here, we cross sectionally examined the effects of the frequency of internet use on regional gray/white matter volume (rGMV/rWMV) and verbal intelligence as well as their longitudinal changes after 3.0 ± 0.3 (standard deviation) years in a large sample of children recruited from the general population (mean age, 11.2 ± 3.1 years; range, 5.7–18.4 years). Although there were no significant associations in cross sectional analyses, a higher frequency of internet use was found to be associated with decrease of verbal intelligence and smaller increase in rGMV and rWMV of widespread brain areas after a few years in longitudinal analyses. These areas involve areas related to language processing, attention and executive functions, emotion, and reward. In conclusion, frequent internet use is directly or indirectly associated with decrease of verbal intelligence and development to smaller gray matter volume at later stages.

本文言語English
ページ(範囲)4471-4479
ページ数9
ジャーナルHuman Brain Mapping
39
11
DOI
出版ステータスPublished - 2018 11

ASJC Scopus subject areas

  • 解剖学
  • 放射線技術および超音波技術
  • 放射線学、核医学およびイメージング
  • 神経学
  • 臨床神経学

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