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首页> 外文期刊>Journal of Cognitive Neuroscience >Episodic Action Memory for Real Objects: An ERP Investigation With Perform, Watch, and Imagine Action Encoding Tasks Versus a Non-Action Encoding Task
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Episodic Action Memory for Real Objects: An ERP Investigation With Perform, Watch, and Imagine Action Encoding Tasks Versus a Non-Action Encoding Task

机译：实物的情景动作记忆：ERP调查，包括执行，监视和想象动作编码任务与非动作编码任务

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Cognitive research shows that people typically remember actions they perform better than those that they only watch or imagine doing, but also at times misremember doing actions they merely imagined or planned to do (source memory errors). Neural research suggests some overlap between brain regions engaged during action production, motor imagery, and action observation. The present study evaluates the similar-ities/differences in brain activity during the retrieval of various types of action and nonaction memories. Participants study real objects in one of four encoding conditions: performing an action, watching the experimenter perform an action, or imagining an action with an object, or a nonmotoric task of estimating an object's cost. At test, participants view color photos of the objects, and make source memory judgments about the initial encoding episodes. Event-related potentials (ERPs) during test reveal (1) content-specific brain activity depending on the nature of the encoding task, and (2) a hand tag, i.e., sensitivity to the hand with which an object had been manipulated at study. At fronto-central sites, ERPs are similar for the three action-retrieval conditions, which are distinct from those to the cost-encoded objects. At occipital sites ERPs distinguished objects from encoding conditions with visual motion (Perform and Watch) from those without visual motion (Imagine and Cost). Results thus suggest some degree of recapitulation of encoding brain activity during retrieval of memories with qualitatively distinct attributes.
机译：认知研究表明，人们通常会记住自己的行为要比仅观看或想象的行为要好，但有时会忘记记住他们只是想像或计划要做的行为（源记忆错误）。神经研究表明，在动作产生，运动图像和动作观察过程中参与的大脑区域之间存在一些重叠。本研究评估了各种活动和非活动记忆的检索过程中大脑活动的相似性/差异。参与者以以下四种编码条件之一来研究真实对象：执行动作，观察实验者执行动作，或想象与对象的动作，或者非运动性的估算对象成本的任务。在测试中，参与者查看对象的彩​​色照片，并对初始编码片段做出源内存判断。测试期间的事件相关电位（ERP）揭示（1）取决于编码任务的性质的特定于内容的大脑活动，以及（2）手势标签，即对在研究中操作过的物体的手的敏感性。在前中央站点，三个行动检索条件的ERPs相似，这与成本编码对象的条件不同。在枕骨部位，ERP将对象与具有视觉运动（执行和观看）的编码条件与没有视觉运动（想象和成本）的编码条件区分开。因此，结果表明在检索具有定性独特属性的记忆期间，编码大脑活动的某种程度的概括。

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