Kogure T
Unit of Behavior and Information Processing, Graduate School of Human Informatics, Nagoya University, Japan.
Laterality. 2001 Jan;6(1):57-68. doi: 10.1080/713754397.
Kosslyn (1987) proposed that categorical spatial relations (i.e., above/below) would be processed more effectively in the left hemisphere, whereas coordinate or metric relations would be processed more effectively in the right hemisphere. To examine his hypothesis, a sequential matching task adopted by Laeng and Peters (1995) was administered. In this task, a sample stimulus was presented in the central visual field and it was followed by a match stimulus presented briefly in the left or right visual field. In Experiment 1, the participants' task was a same different discrimination about spatial relations. Participants responded faster to categorical changes in the right visual field presentation. This result was consistent with Kosslyn's hypothesis. In Experiment 2, participants were asked to make same different judgements about objects (either a digit or a natural line drawing) irrespective of spatial location. They responded faster to digit (i.e., verbal) changes in the right visual field. This result was compatible with the classical notion that verbal materials would be processed more effectively in the left hemisphere. This evidence suggests that the matching paradigm of the present study is useful for investigating cerebral lateralisation not only for spatial relations but also for object processes.
科斯琳（1987年）提出，分类空间关系（即上方/下方）在左半球会得到更有效的处理，而坐标或度量关系在右半球会得到更有效的处理。为了检验他的假设，采用了莱恩和彼得斯（1995年）采用的序列匹配任务。在这个任务中，一个样本刺激出现在中央视野，随后是一个短暂出现在左视野或右视野的匹配刺激。在实验1中，参与者的任务是对空间关系进行相同/不同的辨别。参与者对右视野呈现中的分类变化反应更快。这个结果与科斯琳的假设一致。在实验2中，要求参与者对物体（数字或自然线条画）做出相同/不同的判断，而不考虑空间位置。他们对右视野中的数字（即语言）变化反应更快。这个结果与经典观点相符，即语言材料在左半球会得到更有效的处理。这一证据表明，本研究的匹配范式不仅对于研究大脑对空间关系的侧化，而且对于研究大脑对物体处理的侧化都是有用的。
