中国科学院心理研究所机构知识库

本工作运用以微机为平台的双重任务技术，针对不同的任务特征(包括输人、输出和中枢加工三方面特征)对操作绩效、心理负荷的影响进行了研究.实验结果证明:

1)当主任务为二维追踪操作，次任务为空间轨迹判断，其中轨迹输人方式分为图形显示与语音显示两种时，单项操作绩效受S-C-R相容性原理支配，而双重任务的操作绩效受多资源注意理论的支配.

2)当双重任务的输人形式与中枢加工方式相同，反应操作均为按键反应时，简单的操作整合不影响操作的绩效.

本文还就利手因素对操作的影响进行了讨论.结果证明利手因素对强空间特征任务没有明显影响.

Dual一task paradigms based on a personal computer was used in this study

to examine effects of task features (input, output and central processing) on integrated

and separated operations. The results indicated that:

1) Performance of single task was predicted by the principle of S-C-R compatibility, while performance of dual task was predicted by the multiple resources theory of attention, when a tracking task and a spatial memory task were applied to examine the interesting questions in this study.

2) Integration of the executing phase of a tracking task and a speed perception task had little interference op performance compared to the condition in which the two tasks were executed separately.

Possible mechanisms of the findings above and effects of handedness on performance of a tracking task and key press actions were discussed.