中文摘要：

通过两个行为实验,考察两种选择性注意干扰任务是否分别对客体与空间信息的保持产生选择性干扰,及干扰效应是否受记忆对象言语命名和编码难易程度的影响。实验1采用言语命名和编码容易的记忆任务,没有发现任何显著的干扰效应。实验2采用了言语命名和编码困难的记忆任务,结果分析发现：空间选择性注意次级干扰任务对空间工作记忆成绩存在显著的干扰效应,而基于客体的选择性注意次级干扰任务则对客体工作记忆成绩产生了显著的干扰。实验结果说明,基于客体的选择性注意和空间选择性注意分别在言语命名和编码困难客体与空间信息的保持加工中发挥作用,但当面对言语命名和编码容易的客体与空间记忆目标时,不再发生作用。

英文摘要：

Two behavioral experiments were conducted to examine the hypotheses that secondary tasks affecting object-based and spatial selective attention have different interference effects in the maintenance of object and spatial information,and that these interference effects are mediated by the verbal accessibility of memory stimuli.Experiment 2 used＂nonverbalizable＂stimuli and found significant selective interference effects of secondary tasks involving spatial and object-based selective attention upon spatial and object working memory,respectively;while Experiment 1,using objects applicable of verbal labeling as target,yielded no significant selective interference effect.These results suggested that object-based and spatial selective attention were respectively engaged by object and spatial working memory for information hard to associate with verbal codes;but when information was easy to encode verbally,selective attention was not engaged.