Concurrent working memory load can facilitate selective attention: Evidence for specialized load
Concurrent working memory load can facilitate selective attention: Evidence for specialized load
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DOI：
10.1037/0096-1523.33.5.1062
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发表时间：
2007-10-01
影响因子：
2.1
通讯作者：
Chun, Marvin M.
中科院分区：
文献类型：
--
作者：
Park, Soojin;Kim, Min-Shik;Chun, Marvin M.
负荷理论预测，并发工作记忆负荷会损害选择性注意力并增加分心干扰（N. Lavie、A. Hirst、J. W. de Fockert 和 E. Viding，2004）。在这里，作者提出了新的证据，表明并发工作记忆负荷的类型决定了负荷是否会损害选择性注意力。工作记忆负载与相同/不同的匹配任务配对，该任务需要专注于目标而忽略干扰因素。当工作记忆项与匹配任务中的目标共享相同的有限容量处理机制时，干扰因素会增加。然而，当工作记忆项目在匹配任务中与干扰项共享处理时，干扰项的干扰就会减少，从而有利于目标选择。提出了一种专门的负载帐户来描述工作记忆负载对选择性处理的可分离影响，具体取决于负载是否与目标重叠或与干扰因素重叠。
Load theory predicts that concurrent working memory load impairs selective attention and increases distractor interference (N. Lavie, A. Hirst, J. W. de Fockert, & E. Viding, 2004). Here, the authors present new evidence that the type of concurrent working memory load determines whether load impairs selective attention or not. Working memory load was paired with a same/different matching task that required focusing on targets while ignoring distractors. When working memory items shared the same limited-capacity processing mechanisms with targets in the matching task, distractor interference increased. However, when working memory items shared processing with distractors in the matching task, distractor interference decreased, facilitating target selection. A specialized load account is proposed to describe the dissociable effects of working memory load on selective processing depending on whether the load overlaps with targets or with distractors.