Grainger Jonathan, Holcomb Phillip J
LPC-CNRS UMR 7290, Brain & Language Research Institute, Aix-Marseille University, Marseille, France,
Psychon Bull Rev. 2015 Feb;22(1):289-96. doi: 10.3758/s13423-014-0677-3.
In the present study, we used event-related potentials (ERPs) to examine the effects of prime-target repetition using a dichotic priming paradigm. Participants monitored a stream of target words in the right, attended ear for occasional animal names, and ERPs were recorded to nonanimal words that were either unrelated to or a repetition of prime words presented to the left ear. The prime words were spoken in a different voice and had a lower intensity than did the target words, and the prime word onset occurred 50 ms before target word onset. Repetition-priming effects were observed in the ERPs starting around 150 ms post-target-onset and continued to influence processing for the duration of the target stimuli. These priming effects provide further evidence in favor of parallel processing of overlapping dichotic stimuli, at least up to the level of some form of sublexical phonological representation, a likely locus for the integration of the two sources of information.
在本研究中，我们使用事件相关电位（ERP），采用双耳启动范式来检验启动刺激 - 目标刺激重复的影响。参与者监测右耳中目标词流，留意偶尔出现的动物名称，同时记录ERP，针对呈现给左耳的与启动词无关或重复的非动物词。启动词以不同声音说出，且强度低于目标词，启动词起始时间比目标词起始时间早50毫秒。在目标词起始后约150毫秒开始的ERP中观察到重复启动效应，并在目标刺激持续期间持续影响加工过程。这些启动效应进一步证明了重叠双耳刺激的平行加工，至少达到某种形式的次词汇语音表征水平，这可能是两种信息源整合的一个位点。
