@article{ref1,
title="Sex differences in the end-state comfort effect in pre-adolescent children",
journal="Human movement science",
year="2018",
author="Scharoun, Sara M. and Robinson, Leah E. and Logan, Samuel W. and Bryden, Pamela J. and Brock, Sheri J. and Fischman, Mark G.",
volume="57",
number="",
pages="244-250",
abstract="There has been recent interest in the developmental trajectory of the end-state comfort effect (ESCE) in young children. However, potential sex differences have yet to be examined in the overturned glass task. We examined the ESCE using this task in a large sample (N=232) of typically-developing elementary school children (111 girls, 121 boys) in grades 1-5 (approximately 7-11years old). We sought to determine whether there were similarities or differences in performance between boys and girls. Children picked up an overturned drinking glass from a table, turned the glass upright, and then poured water into it from a measuring cup. Three trials were performed, and the use of an initial awkward thumb-down grip to pick up the glass was taken as evidence for the ESCE. There were non-significant main effects for sex and grade, but a significant interaction between factors. Boys increased in sensitivity to end-state comfort across the five grades while girls showed a decrease from grades 1-3, followed by an increase between grades 3 and 5. Taken together, the results indicate the presence of adult-like motor planning for the overturned glass task by the 4th grade (i.e., age 10), but also suggest the presence of a motor reorganization in girls, at around the 2nd or 3rd grade (i.e., 8 or 9years of age).<br><br>Copyright © 2017 Elsevier B.V. All rights reserved.<p /> <p>Language: en</p>",
language="en",
issn="0167-9457",
doi="10.1016/j.humov.2017.09.001",
url="http://dx.doi.org/10.1016/j.humov.2017.09.001"
}