Predicting age-related differences in visual information processing using a two-stage queuing model

被引:8
作者
Ellis, RD
Goldberg, JH
Detweiler, MC
机构
[1] WAYNE STATE UNIV,DEPT IND & MFG ENGN,DETROIT,MI 48202
[2] PENN STATE UNIV,UNIVERSITY PK,PA 16802
来源
JOURNALS OF GERONTOLOGY SERIES B-PSYCHOLOGICAL SCIENCES AND SOCIAL SCIENCES | 1996年 / 51卷 / 03期
关键词
D O I
10.1093/geronb/51B.3.P155
中图分类号
R592 [老年病学]; C [社会科学总论];
学科分类号
03 ; 0303 ; 100203 ;
摘要
Recent work on age-related differences in some types of visual information processing has qualitatively stated that younger adults are able to develop parallel processing capability, while older adults remain serial processors. A mathematical model based on queuing theory was used to quantitatively predict and parameterize age-related differences in the perceptual encoding and central decision-making aspects of a multiple-frame search task. Statistical results indicated main effects for frame duration, display load, age group, and session of practice. Comparison of the full model and a restricted model indicated an efficient contribution of the encoding speed parameter. The best-fitting parameter set indicated that (1) younger participants processed task information with a two-channel parallel system, while older participants were serial processors; and (2) perceptual encoding had a large impact on age-related differences in task performance. Results are discussed with implications for human factors design principles.
引用
收藏
页码:P155 / P165
页数:11
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