注意分心对定义一体化编码的影响

The Influence of Divided Attention on Definition-based Unitized Encoding

通过考察编码阶段注意分心对定义一体化条件下联结记忆成绩的影响,探究定义一体化编码对注意资源的依赖程度。使用注意分心范式,在记忆编码过程操作无分心、奇偶分心和大小分心条件,比较不同注意条件下的联结记忆成绩。结果发现:与无分心条件相比,定义一体化下的联结记忆成绩在两种分心条件下没有显著变化,而造句下的联结记忆成绩在两种分心条件下显著降低。当前发现表明了定义一体化编码较少依赖于注意资源,这深化了对定义一体化编码机制的认识。

The present study explored whether attention influenced the unitized representation during the encoding phase via a divided-attention paradigm. Participants were asked to study unrelated word pairs as new concepts in the definition condition or as separated lexical units in the sentence condition. Meanwhile the participants were instructed to perform both the divided attention with odd/even decision task and the divided attention with large/small task. The results showed that there was no significant group difference in the definition condition,suggesting that two types of divided attention have no influence on definition-based unitized representation during encoding phase. However,two types of divided attention group exhibited significantly worse performance than the full attention group in the sentence condition,suggesting that divided attention disrupted association representation during encoding phase,leading to a decline in familiarity based associative memory performance. The results showed that two types of divided attention have no influence on associative memory performance under the definition condition,but leading to significant decline in associative memory performance in sentence condition. These findings revealed that definition-based unitized encoding depend on the attentional resources to a lesser extent,which clarify the issue about the cognitive process of definition-based unitized encoding.