Physiologic stages of vocal reaction time.
Physiologic stages of vocal reaction time.
复制标题
声音反应时间的生理阶段。
DOI：
10.1121/1.2019449
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发表时间：
1982
期刊：
影响因子：
--
通讯作者：
P. Morrissey
中科院分区：
文献类型：
--
作者：
T. Shipp;K. Izdebski;P. Morrissey
10 名男性受试者执行了一项简单的声音反应时间 (RT) 任务，同时获得了喉内肌和声门下气压的测量值。仅根据 15 次试验中每位受试者的最快时间，RT 值与之前在正常受试者中观察到的潜伏期相似。受试者最快试验的平均时间为 185 毫秒（范围：160-250 毫秒）。每次测量获得的最短潜伏期值为杓间肌，50 ms；甲杓肌，60 ms；环杓后肌，80 ms；声门下气压上升，125 毫秒。根据这些数据，估计最短呼吸系统延迟为 115 毫秒，最短中央处理时间为 25 毫秒。这些数据表明，最快的声音 RT 主要由激活肺部结构而不是喉部结构所涉及的时间限制决定。
A simple vocal reaction time (RT) task was performed by 10 male subjects while measures from intrinsic laryngeal muscles and subglottal air pressure were obtained simultaneously. Based only on each subject's fastest time among 15 trials, RT values were similar to the latencies previously observed in normal subjects. The mean of the subjects' fastest trials was 185 ms (range: 160-250 ms). Shortest latency values obtained for each measure were interarytenoid muscle, 50 ms; thyroarytenoid muscle, 60 ms; posterior cricoarytenoid muscle, 80 ms; subglottal air pressure rise, 125 ms. From these data estimates were made of 115 ms for the shortest respiratory system latency and 25 ms for the minimal central processing time. These data suggest that fastest vocal RTs are determined principally by the temporal constraints involved in activating pulmonary rather than laryngeal structures.