Key Laboratory of Brain, Cognition and Education Sciences (South China Normal University), Ministry of Education, China; School of Psychology, South China Normal University, 510631 Guangzhou, China; Center for Studies of Psychological Application, South China Normal University, 510631 Guangzhou, China; Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, 510631 Guangzhou, China.
Key Laboratory of Brain, Cognition and Education Sciences (South China Normal University), Ministry of Education, China; School of Psychology, South China Normal University, 510631 Guangzhou, China; Center for Studies of Psychological Application, South China Normal University, 510631 Guangzhou, China; Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, 510631 Guangzhou, China.
Brain Cogn. 2021 Mar;148:105690. doi: 10.1016/j.bandc.2021.105690. Epub 2021 Jan 23.
The left fusiform cortex has been identified as a crucial structure in visual word learning and memory. Nevertheless, the specific roles of the fusiform subregions in word memory and their consistency across different writings have not been elaborated. To address these questions, the present study performed two experiments, in which study-test paradigm was used. Participants' brain activity was measured with fMRI while memorizing novel logographic words in Experiment 1 and novel alphabetic words in Experiment 2. A post-scan recognition memory test was then administered to acquire the memory performance. Results showed that, neural responses in the left anterior and middle fusiform subregions during encoding were positively correlated with recognition memory of novel words. Moreover, the positive brain-behavior correlations in the left anterior and middle fusiform cortex were evident for both logographic and alphabetic writings. The present findings clarify the relationship between the left fusiform subregions and novel word memory.
左侧梭状回被确定为视觉单词学习和记忆的关键结构。然而，梭状回各亚区在单词记忆中的具体作用及其在不同书写系统中的一致性尚不清楚。为了解决这些问题，本研究进行了两项实验，均采用学习-测试范式。参与者在记忆实验 1 中的新的象形文字和实验 2 中的新的字母文字时，使用 fMRI 测量他们的大脑活动。然后进行扫描后识别记忆测试，以获取记忆表现。结果表明，在编码过程中左侧前、中梭状回的神经反应与新单词的识别记忆呈正相关。此外，对于象形文字和字母文字，左侧前、中梭状回的大脑-行为相关性呈阳性。本研究结果阐明了左侧梭状回各亚区与新单词记忆之间的关系。
