Hemispheric asymmetries in motivation neurally dissociate self-description processes.
Hemispheric asymmetries in motivation neurally dissociate self-description processes.
复制标题
动机中的半球不对称会在神经上分离自我描述过程。
DOI：
10.1037/a0030784
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Deason,RebeccaG
中科院分区：
文献类型：
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作者：
Marsolek,ChadJ;DeYoung,ColinG;Domansky,WScott;Deason,RebeccaG
当人们通过回答性格问卷来描述自己时，他们通常会赞同一些项目，而拒绝另一些项目。此外，大多数人认可讨人喜欢的特质，拒绝不讨人喜欢的特质。在一种情况下，人们使用先前储存的关于自己的信息来判断一个特定的特征（通常是讨人喜欢的）是否能很好地描述他们，而在另一种情况下，他们使用先前储存的信息来判断一个特定的特征（通常是不讨人喜欢的）是否能很好地描述他们。在这里，我们报告的证据表明，这些过程在神经上是可分离的，前者受益于参与左半球的过程，后者受益于参与右半球的过程。自我描述的半球不对称不是单向的，在不同的人格特征中没有差异，但在赞同喜欢的事物和拒绝不喜欢的事物之间确实存在差异。因此，我们不是冷静的观察者。可分离的、基本的动机过程涉及自我描述背后的神经结构。
When people describe themselves by responding to personality questionnaires, typically they endorse some items and reject others. Further, most people endorse likable traits and reject unlikeable traits. In one case, people use previously stored information about themselves to judge that a particular trait—usually likable—describes them well, and in the other, they use previously stored information to judge that a particular trait—usually unlikeable—does not describe them well. Here we report evidence that these processes are neurally dissociable, with the former benefiting from engaging left-hemisphere processes and the latter benefiting from engaging right-hemisphere processes. Hemispheric asymmetries in self-description are not unidirectional and do not differ across different personality traits, but do differ between endorsing likable items and rejecting unlikeable items. Thus, we are not dispassionate observers of ourselves. Dissociable, basic motivational processes are involved in the neural architecture underlying self-description.