CAJ | 학술논문

该研究以简单形状和颜色构成的客体为材料，采用延迟匹配范式，通过记录事件相关电位，以反映工作记忆表征与知觉输入间冲突的N270为指标，就视觉工作记忆中的客体存储机制进行了探讨。结果发现，无关维度特征变化与目标维度特征变化均可诱发N270。该结果表明，视觉工作记忆对客体目标特征进行存储时，无关特征亦自动得到选择加工，支持基于客体的存储说。
해연구이간단형상화안색구성적객체위재료，채용연지필배범식，통과기록사건상관전위，이반영공작기억표정여지각수입간충돌적N270위지표，취시각공작기억중적객체존저궤제진행료탐토。결과발현，무관유도특정변화여목표유도특정변화균가유발N270。해결과표명，시각공작기억대객체목표특정진행존저시，무관특정역자동득도선택가공，지지기우객체적존저설。
At present, there are two theories on how visual information is represented in visual working memory （VWM）. One proposes the object-based storage hypothesis, suggesting that the VWM can automatically store all the features of an object. The other one puts forward a selective-storage hypothesis, indicating that only relevant feature can be represented in VWM. In this paper, using delayed matching-to-sample paradigrn, we adopted an ERPs experiment to investigate the issue by was defined taking by color N270 as an index. The object and shape, which could be processed in parallel. The data N270 was elicited when the changed, and could be also analyses showed that relevant feature was observed in irrelevant change condition. Therefore, the result suggested when relevant feature was selected, the irrelevant features from the same object would also be automatically selected, thus supporting the object-based storage hypothesis.