文章基本信息

标题：A note on motor skill acquisition in mild and moderate Down syndrome individuals
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作者：Roberto Gimenez ; Marcelo Luis Marquezi ; Ernani Xavier Filho 等
期刊名称：Psicologia: Reflexão e Crítica
印刷版ISSN：0102-7972
电子版ISSN：1678-7153
出版年度：2017
卷号：30
页码：1-9
语种：English
出版社：Universidade Federal do Rio Grande do Sul
其他摘要：This study investigated the acquisition of a serial motor skill in individuals with Down syndrome with two levels of handicap, mild group (mean age = 14.5 years, SD = 2.3, 7 individuals) and moderate group (mean age = 15.2 years, SD = 3.2, 7 individuals). The task involved single-arm sequential movements to five. The measures to access performance were overall sequence error, reaction time, and total movement time. To evaluate action program, formation variability of sequencing and relative timing variability were considered. Although there was no clear practice effect, the results showed that the level of handicap led to different strategies to plan and control the actions. The moderate group presented a less stable action program expressed in the variability in sequencing and timing. Their longer reaction times also suggest a heavy demand on central processing in accord with the one- target advantage hypothesis and also due to memory deficits to select and plan movements.
其他关键词：Down syndrome; Target directed movement; Movement timing; One-target advantage.