Discrimination of speed in 5-year-olds and adults: Are children up to speed?

被引：33

作者：

Ahmed, IJ

Lewis, TL

Ellemberg, D

Maurer, D

机构：

[1] McMaster Univ, Dept Psychol, Hamilton, ON L8S 4K1, Canada

[2] Univ Toronto, Dept Ophthalmol, Toronto, ON M5S 1A1, Canada

[3] Univ Montreal, Dept Kinesiol, Montreal, PQ, Canada

来源：

VISION RESEARCH | 2005年 / 45卷 / 16期

基金：

加拿大自然科学与工程研究理事会; 加拿大健康研究院;

关键词：

visual development; speed discrimination; children; adults;

D O I：

10.1016/j.visres.2005.01.036

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

We compared thresholds for discriminating changes in speed by 5-year-olds and adults for two reference speeds: 1.5 and 6 degrees s(-1). Both adults and 5-year-olds were more sensitive to changes from the faster than from the slower reference speed. Five-year-olds were less sensitive than adults at both reference speeds but significantly more immature at the slower (1.5 degrees s(-1)) than at the faster (6 degrees s(-1)) reference speed. The findings suggest that the mechanisms underlying speed discrimination are immature in 5-year-olds, especially those that process slower speeds. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：2129 / 2135

页数：7

共 39 条

[21] Concurrent measurement of perceived speed and speed discrimination threshold using the method of single stimuli [J].