听觉记忆的脑功能磁共振研究  

fMRI Study of Auditary Memory

作　　者：孙兮文 鲍敏[2] 张效初[2] 张达人[2] 

机构地区：[1]上海肺科医院放射科,200433 [2]中国科技大学生命科学院脑功能实验室

出　　处：《中国医学计算机成像杂志》2004年第1期1-3,共3页Chinese Computed Medical Imaging

基　　金：上海市卫生局科技发展基金(编号:014L02));中国科技大学博士后基金(编号:BH0810)资助

摘　　要：目的:研究听觉记忆的功能磁共振成像特点。材料和方法:利用1.5T MR机的BOLD软件对6个志愿者做了有关数字顺序的听觉实验,所有数据经AFNI软件处理。结果:①正序记忆5位数字的正确率95.8％,平均反应时间4.58s;反序记忆4位数字的正确率95.5％,平均反应时间4.61s。②反序记忆在左侧BA 9-46区和双侧7区激活体积大于正序记忆(P<0.05)。结论:功能磁共振成像有助于加深对听觉记忆的理解。Purpose: To evaluate auditary memory with functional magnetic resonance imaging (fMRI) .Materials and Methods:Six younger adults participated in the auditary memory test of counting digital forward and backward, the software of BOLD on 1.5T MRI was used to recording the reaction of brain. Results: The correct rate of counting 5 digital forward was 95.8% , reaction time was 4.58 seconds; while the correct rate of counting 4 digital backward was 95.5% , reaction time was 4.61 seconds. Left Broca' area (BA) 9 ~ 46 and bilateral BA 7 were more activated in backword than in forward.Conclusion:fMRI was helpful to understand auditary memory.

关 键 词：听觉 记忆 脑功能 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学]