Electrophysiological evidence of developmental changes in the duration of auditory sensory memory
Electrophysiological evidence of developmental changes in the duration of auditory sensory memory
复制标题
DOI：
10.1037/0012-1649.35.1.294
复制
发表时间：
1999-01-01
影响因子：
4
通讯作者：
Vaughan, HG
中科院分区：
文献类型：
--
作者：
Gomes, H;Sussman, E;Vaughan, HG
在行为研究中，儿童对音调频率的记忆比成年人持续的时间要短（T。A. Keller & N.科万，1994年）。本研究是为了评估这种效应是由于听觉感觉记忆的变化，而不是注意机制的论点。这个问题进行了调查，使用失配负波（MMN），听觉事件相关电位被认为是不敏感的注意。参与者为6-7岁、8-10岁和11 - 1a岁的儿童和成人。他们被提供了一连串的刺激，从标准（1000 Hz）或异常（1200 Hz）的音调开始，列车间隔为1 s或8 s。所有4组表现出MMN后延迟1秒，但只有成人和年龄最大的儿童表现出MMN后8秒，这表明有成熟的变化，在听觉感觉记忆的持续时间。
In behavioral studies, children's memory for tonal frequency has been found to persist for less time than adults' (T. A. Keller & N. Cowan, 1994). The present study was done to evaluate the argument that this effect is due to changes in auditory sensory memory and not to attentional mechanisms. This question was investigated using mismatch negativity (MMN), an auditory event-related potential considered to be insensitive to attention. Participants were 6-7-, 8-10-, and Il-la-year-old children and adults. They were presented with trains of stimuli, beginning with either a standard (1000 Hz) or a deviant (1200 Hz) tone with trains separated by either 1 s or 8 s. All 4 groups exhibited MMNs after delays of I s, but only the adults and oldest children exhibited MMNs after 8 s, indicating that there are maturational changes in the duration of auditory sensory memory.