噪声和混响对儿童视觉短时记忆的影响

发布时间：2018-01-13 15:12

本文关键词：噪声和混响对儿童视觉短时记忆的影响　出处：《华南理工大学学报(自然科学版)》2016年07期 　论文类型：期刊论文

【摘要】：通过对小学三、六年级儿童在2种不同混响时间和3种不同干扰噪声级条件下进行汉语双音节词语的视觉短时记忆行为的测试,探讨了噪声和混响时间对不同年龄段儿童对汉语词语的视觉短时记忆的影响,并比较了混响和噪声条件下儿童听觉记忆和视觉记忆行为之间的差异.结果表明:干扰噪声级和儿童年龄对儿童在教室内的视觉短时记忆行为均有显著影响;随着干扰噪声级的降低、混响时间的缩短以及儿童年龄的增大,儿童对汉语词语的视觉短时记忆得分增加;噪声和混响对听觉记忆的影响较视觉记忆的影响大,但随着噪声级的降低和混响时间的缩短,视觉记忆和听觉记忆的记忆得分差异减小.
[Abstract]:The visual short-time memory behavior of Chinese disyllabic words was tested under the conditions of two different reverberation times and three different interference noise levels in grade three and six of primary school children. The effects of noise and reverberation time on the visual short-term memory of Chinese words in children of different ages were investigated. The difference between auditory memory and visual memory behavior in children with reverberation and noise was compared. The results showed that interference noise level and age had significant effects on children's short term visual memory behavior in classroom. With the decrease of interference noise level, the shortening of reverberation time and the increase of children's age, the visual short-term memory scores of Chinese words increased. The influence of noise and reverberation on auditory memory was greater than that of visual memory, but with the decrease of noise level and the shortening of reverberation time, the difference of memory scores between visual and auditory memory decreased.
【作者单位】：华南理工大学物理与光电学院;
【基金】：国家自然科学基金资助项目(11374106)~~
【分类号】：B842
【正文快照】： 教室室内声环境的好坏将直接影响学生课堂学习效果[1].很多国家和政府已经制定并颁布了相关规范和准则,给出了教室室内信噪比(SNR)和混响时间(T30)等参数要求[2-3].国内外许多研究者深入研究了这些参数对教室内语言清晰度的影响,并取得大量很有意义的结论[4-5].但是儿童的课堂

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