Harris Christine R, Pashler Harold
Department of Psychology, University of California, San Diego, La Jolla 92093-0109, USA.
Psychol Sci. 2004 Mar;15(3):171-8. doi: 10.1111/j.0956-7976.2004.01503005.x.
Previous research has suggested that a person's own name or emotionally charged stimuli automatically "grab" attention, potentially challenging limited-capacity theories of perceptual processing. In this study, subjects were shown two digits surrounding a word and asked to make a speeded judgment about whether the parity of the two digits matched. When the subject's own name was presented on a few scattered trials, responses were markedly slowed (replicating a previous study). However, in a subsequent block of trials in which half the words were the subject's name, the slowing did not occur. The same slowing occurred (but even more fleetingly) when an emotionally charged word was presented between the digits. When the name was embedded among multiple distractor words, it ceased to slow reaction times. The results suggest that perceptual analysis of high-priority stimuli is subject to the usual capacity limitations of other stimuli, but when enough capacity is available for a high-priority stimulus to be perceived, a transient surprise reaction may interrupt ongoing processing.
先前的研究表明,一个人自己的名字或带有情感色彩的刺激会自动“吸引”注意力,这可能对感知处理的有限容量理论构成挑战。在本研究中,向受试者展示围绕一个单词的两个数字,并要求他们快速判断这两个数字的奇偶性是否匹配。当在少数分散的试验中呈现受试者自己的名字时,反应明显变慢(重复了先前的一项研究)。然而,在随后的一组试验中,其中一半的单词是受试者的名字,这种变慢并没有出现。当在两个数字之间呈现一个带有情感色彩的单词时,同样的变慢情况也会发生(但更为短暂)。当名字嵌入多个干扰词之中时,它就不再会减慢反应时间。结果表明,对高优先级刺激的感知分析会受到其他刺激通常的容量限制,但是当有足够的容量来感知高优先级刺激时,一种短暂的惊讶反应可能会中断正在进行的处理。