Role of the right temporal neocortex in retention of pitch in auditory short-term memory.
Role of the right temporal neocortex in retention of pitch in auditory short-term memory.
复制标题
右颞新皮质在听觉短期记忆中音高保留中的作用。
DOI：
10.1093/brain/114.6.2403
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
S. Samson
中科院分区：
文献类型：
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作者：
R. Zatorre;S. Samson
为了探讨听觉信息短期记忆的神经机制，我们对71例接受了左侧或右侧颞叶区、右侧额叶区或额颞叶区局灶性切除以缓解难治性癫痫的患者进行了测试，并与18名正常对照者一起进行了一项需要短期保留音调的任务。在对照条件下，先给出一个目标音，1650 ms后再给出一个比较音，由受试者判断两者的音高是否相同。在干扰条件下，在目标音和比较音之间出现一系列插值音。结果表明，任何一组患者在对照任务上都没有明显的损伤。在干扰任务中，右侧颞叶损伤患者、右侧额叶、右侧额叶和颞叶损伤患者的音调信息保留存在显著缺陷。左颞叶切除的患者没有表现出明显的缺陷。这些发现与对非人类灵长类动物的研究一致，表明颞上回的结构在短时间内保留听觉信息方面很重要，并进一步表明人类右侧颞区专门负责这一功能。
In order to investigate the neural mechanisms underlying short-term memory for auditory information, 71 patients who had undergone focal excision from the left or right temporal or right frontal or fronto-temporal area for the relief of intractable epilepsy were tested, together with 18 normal control subjects, on a task requiring short-term retention of tonal pitch. In the control condition, a target tone was presented, followed 1650 ms later by a comparison tone, and subjects determined whether the two had the same pitch or not. In the interference condition a series of interpolated tones was presented between target and comparison tone. Results indicated that there was no significant impairment in any patient group on the control task. In the interference task there was a significant deficit in retention of tonal information in the patients with right temporal-lobe damage, as well as in those with lesions in the right frontal lobe, and in the right frontal and temporal area. Patients with left temporal-lobe excisions did not demonstrate a significant deficit. These findings are in agreement with research on non-human primates suggesting that structures in the superior temporal gyrus are important in retaining auditory information over short time spans, and further indicate that the human right temporal area is specialized for this function.