Hahn S, Kramer A F
Beckman Institute, University of Illinois at Urbana-Champaign 61801, USA.
Psychol Aging. 1995 Dec;10(4):597-609. doi: 10.1037//0882-7974.10.4.597.
Whether young and old adults were able to selectively attend to noncontiguous locations in the visual field and ignore physically interspersed distractor stimuli was examined. Participants decided whether 2 letters matched or mismatched. Target letter locations were precued by square boxes on an imaginary circle centered on fixation. Distractors were located between the 2 targets. Young and old were unable to ignore the distractors when the targets and distractors were presented as onset stimuli; however both young and old were able to ignore the distractors when the target and distractors were presented as non-onset stimuli. The time course of attentional allocation was equivalent for young and old. Results are discussed in terms of models of visual selective attention and the flexibility of attentional control.
研究了年轻人和老年人是否能够有选择地关注视野中不相邻的位置，并忽略物理上穿插的干扰刺激。参与者要判断两个字母是匹配还是不匹配。目标字母的位置通过以注视点为中心的假想圆上的方盒进行预提示。干扰物位于两个目标之间。当目标和干扰物以起始刺激呈现时，年轻人和老年人都无法忽略干扰物；然而，当目标和干扰物以非起始刺激呈现时，年轻人和老年人都能够忽略干扰物。年轻人和老年人注意力分配的时间进程是相同的。根据视觉选择性注意模型和注意力控制的灵活性对结果进行了讨论。
