AI Article Synopsis
- The study analyzed how the reaction time for pro-saccades (quick eye movements) changes with age while maintaining neck flexion in children and young adults.
- Results showed that younger children (3-4 years) had significantly longer reaction times compared to slightly older children (5-6 years), with improvements noted starting around age 11 during neck flexion.
- The findings indicate that brain activation related to quicker pro-saccade reactions increases around age 11 and that this activation persists for longer durations as children grow older.
Article Abstract
Background: We investigated developmental changes in shortening of pro-saccade reaction time while maintaining neck flexion.
Methods: Subjects comprised 135 children (3-14 years) and 29 young adults (19-23 years). Children were divided into six groups in 2-year age strata. Pro-saccade reaction tasks for 30 s were performed in neck rest and flexion positions. Reaction times under each position were averaged in every 10-s period.
Results: Under neck rest position, reaction time in the 0-10 s period was significantly longer in the 3- to 4-year-old group than in the 5- to 6-year-old group and above. No significant age effect was found for reaction time in the 0-10 s period in the 5- to 6-year-old group and above. Although a significant effect of neck flexion was not observed until the 9- to 10-year-old group, significant shortening of reaction time with neck flexion was found in the 11- to 12-year-old group and above. Furthermore, this shortening was maintained until the first 20-s period in the 11- to 12-year-old group and during the entire 30 s in the 13- to 14-year-old and above.
Conclusions: These results suggest that brain activation with the maintenance of neck flexion, related to shortening of the pro-saccade reaction time, was found from a later age of approximately 11 years and above, compared with the age at which information-processing function in the pro-saccade was enhanced. In addition, brain activation with the maintenance of neck flexion was sustained longer with age.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5763661 | PMC |
| http://dx.doi.org/10.1186/s40101-017-0161-7 | DOI Listing |
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