Mitzner Tracy L, Touron Dayna R, Rogers Wendy A, Hertzog Christopher
Georgia Institute of Technology.
University of North Carolina-Greensboro.
Proc Hum Factors Ergon Soc Annu Meet. 2010 Sep;54(18):1326-1330. doi: 10.1177/154193121005401805. Epub 2010 Sep 1.
Visual search is an integral part of functioning in everyday life and a primary component of some occupational tasks. Older adults typically exhibit longer response times on visual search tasks compared to younger adults. Mechanisms proposed as explanations of these age-related differences include general slowing of the speed of information processing, amount of internal noise, attentional capacity, selective attention, and inhibition. This study evaluated the possibility that age-related differences in visual search may be partly due to older adults double checking to a greater degree than younger adults. Older adults did in fact double check more so than younger adults. Moreover, speed stress instructions reduced double checking behavior as well as age-related differences in double checking.
视觉搜索是日常生活功能的一个组成部分，也是一些职业任务的主要组成部分。与年轻人相比，老年人在视觉搜索任务上通常表现出更长的反应时间。作为这些年龄相关差异的解释而提出的机制包括信息处理速度的普遍减慢、内部噪声量、注意力容量、选择性注意和抑制。本研究评估了视觉搜索中年龄相关差异可能部分归因于老年人比年轻人更频繁地进行二次检查的可能性。事实上，老年人比年轻人更频繁地进行二次检查。此外，速度压力指令减少了二次检查行为以及二次检查中的年龄相关差异。
