论文部分内容阅读
采用Kosslyn双任务分离的研究范式,通过两个实验考察了复杂图形表象产生的认知加工机制。实验1提出了当要求被试在产生动物的部分表象时,大脑左半球明显反应更快;而当要求被试产生客体整体特征的表象时,并没有出现大脑半球的优势效应。实验2采用控制任务进一步证实大脑两半球不同的优势效应,研究发现当同样的任务以知觉形式完成时,没有大脑半球的优势效应。实验结果表明,在复杂图形表象产生的过程中,当产生部分表象时,大脑左半球有显著优势;而当产生整体表象时,两半球起同样作用。此结果进一步拓展了Kosslyn提出的大脑半球专门化假说。
Using Kosslyn’s dual-task separation paradigm, two experiments were conducted to investigate the cognitive processing mechanism of complex graphical representation. Experiment 1 proposed that when the subjects were asked to produce part of the appearance of animals, the left hemisphere of the brain reacted significantly faster. When the subjects were asked to produce the appearance of the overall characteristics of the object, no dominant hemisphere effect was observed. Experiment 2 uses control tasks to further confirm the different predominance effects in the two hemispheres of the brain. The study found no dominant hemispheric effect when the same task was performed in perceptual form. The experimental results show that the left hemisphere of the brain has significant advantages when generating partial representations in the process of generating complex graphical representations, while the two hemispheres play the same role when the overall appearance is produced. This result further expands the hemispheric specialization hypothesis proposed by Kosslyn.