Luks T L, Nusbaum H C, Levy J
The University of Chicago, USA.
Brain Lang. 1998 Nov;65(2):313-32. doi: 10.1006/brln.1998.1993.
The first aim of this study was to determine if there was a significant perceptual asymmetry for syntactic prosody and if it differed from the perceptual asymmetry for emotional prosody. The second aim of this study was to determine if the observed asymmetries were the product of task demands or stimulus features. Experiment 1 consisted of a Syntactic task and an Emotional task. In the Syntactic task, subjects identified Statement and Question prosody in dichotically presented sentences. In the Emotional task, subjects identified Angry and Sad prosody in dichotically presented sentences. There was a significant left ear advantage for the Emotional task and no significant ear advantage for the Syntactic task. In Experiment 2, subjects had to perform an Emotional prosody task with the syntactic Statement and Question prosody stimuli from Experiment 1. There was a significant left ear advantage, indicating that the perceptual asymmetry was determined by task demands and not stimulus features.
本研究的首要目的是确定句法韵律是否存在显著的感知不对称，以及它是否与情感韵律的感知不对称有所不同。本研究的第二个目的是确定观察到的不对称是任务需求还是刺激特征的产物。实验1包括一个句法任务和一个情感任务。在句法任务中，受试者辨别双耳分听呈现句子中的陈述和疑问韵律。在情感任务中，受试者辨别双耳分听呈现句子中的愤怒和悲伤韵律。情感任务存在显著的左耳优势，而句法任务不存在显著的耳优势。在实验2中，受试者必须对实验1中的句法陈述和疑问韵律刺激执行情感韵律任务。存在显著的左耳优势，表明感知不对称是由任务需求而非刺激特征决定的。
