Kim H, Levine S C
Department of Psychological Therapy, Daegu University, Republic of Korea.
Brain Cogn. 1992 May;19(1):21-47. doi: 10.1016/0278-2626(92)90036-l.
The current study investigates sources of between-subjects variation in asymmetry scores on visual half-field and dichotic listening tasks. For each of these presentation modalities, subjects were given multiple laterality tasks. Results indicate that about 50% of the between-subjects variations in asymmetry scores in each modality is attributable to individual differences in perceptual asymmetries that are not stimulus-specific, referred to as "characteristic perceptual asymmetries" in this paper. In addition, the question of whether individual differences in characteristic perceptual asymmetries are modality specific, modality general, or both was investigated by entering subjects' asymmetry scores from visual half-field and dichotic listening tasks into a principal component analysis. The results of this analysis indicate that there are both modality specific and modality general influences on subjects' characteristic perceptual asymmetries.
本研究调查了视觉半视野和双耳分听任务中不对称分数的受试者间变异来源。对于每种呈现方式，受试者都接受了多项偏侧性任务。结果表明，在每种方式中，不对称分数的受试者间变异约50%可归因于非刺激特异性的感知不对称中的个体差异，本文将其称为“特征性感知不对称”。此外，通过将受试者在视觉半视野和双耳分听任务中的不对称分数进行主成分分析，研究了特征性感知不对称中的个体差异是特定于方式、通用的方式，还是两者皆有的问题。该分析结果表明，对受试者的特征性感知不对称存在特定于方式和通用的方式的影响。
