Pollak Seth D, Holt Lori L, Wismer Fries Alison B
Department of Psychology, University of Wisconsin at Madison, 53706-1696, USA.
Dev Sci. 2004 Feb;7(1):10-8. doi: 10.1111/j.1467-7687.2004.00317.x.
In the present work, we developed a database of nonlinguistic sounds that mirror prosodic characteristics typical of language and thus carry affective information, but do not convey linguistic information. In a dichotic-listening task, we used these novel stimuli as a means of disambiguating the relative contributions of linguistic and affective processing across the hemispheres. This method was applied to both children and adults with the goal of investigating the role of developing cognitive resource capacity on affective processing. Results suggest that children's limited computational resources influence how they process affective information and rule out attentional biases as a factor in children's perceptual asymmetries for nonlinguistic affective sounds. These data further suggest that investigation of perception of nonlinguistic affective sounds is a valuable tool in assessing interhemispheric asymmetries in affective processing, especially in parceling out linguistic contributions to hemispheric differences.
在本研究中，我们开发了一个非语言声音数据库，这些声音反映了语言特有的韵律特征，因此携带情感信息，但不传达语言信息。在双耳分听任务中，我们使用这些新颖的刺激作为一种手段，来区分语言和情感加工在两个半球中的相对贡献。该方法应用于儿童和成人，目的是研究发展中的认知资源能力对情感加工的作用。结果表明，儿童有限的计算资源会影响他们处理情感信息的方式，并排除了注意力偏差是儿童对非语言情感声音感知不对称的一个因素。这些数据进一步表明，对非语言情感声音感知的研究是评估情感加工中半球间不对称的一个有价值的工具，特别是在区分语言对半球差异的贡献方面。
