CAJ | 학술논문

以故事情境为实验材料，采用学习再认实验范式，通过操纵再认靶词与故事情境的关联性考察了情境故事对关联虚假记忆和真实冉认神经活动的影响。结果发现：在记忆再认的熟悉性加工和回想性加工阶段，虚假记忆与真实记忆所诱发FN400和LPC成分走向一致；在额叶后提取阶段，虚假再认所诱发的晚慢成分波幅大于真实再认。结果说明：情境性关联虚假记忆与真实记忆表现出相似的熟悉性和回想性加工，但在后期需耗费额外的加工资源进行成功的提取。
이고사정경위실험재료，채용학습재인실험범식，통과조종재인파사여고사정경적관련성고찰료정경고사대관련허가기억화진실염인신경활동적영향。결과발현：재기억재인적숙실성가공화회상성가공계단，허가기억여진실기억소유발FN400화LPC성분주향일치；재액협후제취계단，허가재인소유발적만만성분파폭대우진실재인。결과설명：정경성관련허가기억여진실기억표현출상사적숙실성화회상성가공，단재후기수모비액외적가공자원진행성공적제취。
The current study used story contexts as the material and adopted the learning and testing experimental paradigm to investigate the influence of story contexts on cognitive and neural electrophysiological processes of true as well as the false memories. In the study phase, participants were asked to remember story context which appeared on the computer screen. Then, the participants were required to do an old/new recognition test. There were three types of target words during the testing stage including old words, critical words and new words. Critical words were new and highly associated with the story contexts. In addition, new words were unassociated with the contexts. Event -related potential（ERPs） and RT were measured when 22 healthy right -handed undergraduates did an old/ new recognition test. None of them had history of mental illness or brain disease. After the experiment, we gave certain degree of compensation to subjects. Two subjects were excluded because of the lack of the number of artifact - free trials. The instrument for the statistical analysis used in the experiment was SPSS 15.0. The results showed that（ 1 ）the critical items produced a high rate of false memory. Moreover, false recognition demanded more RT than true recognition. （2） The FN400, which reflects familiarity - based process, revealed no significant differences between true and false recognition. But there were more negative than Correct -Rejection recognition. （3）During the recollection -based process （400 - 800ms） , the amplitude of LPC elicited by false recognition and true recognition was not different, while there were more positive than Correct -Rejection recognition. （4）During the post -retrieval process （800 - 1110ms ）, the difference among the ERPs amplitude elicited by recognition about three target words got a remarkably significant difference. The amplitude of LSW elicited by false recognition was greater than true recognition and Correct - Rejection recognition. In conclusion, the results demonstrated that true and false memories had showed the same information processing models in story contextual cuing effect during recollection -based process and familiarity -based process. However, the information processing models changed during the post- retrieval process： false memory needed much more information processing than true memory did for retrieval and comparing, so it took longer time to recognize. This study provided new evidence for the activation - monitoring framework.