Optical study of spatiotemporal inhibition evoked by two-tone sequences in the guinea pig auditory cortex
Optical study of spatiotemporal inhibition evoked by two-tone sequences in the guinea pig auditory cortex
复制标题
豚鼠听觉皮层双音序列引起的时空抑制的光学研究
DOI：
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
I. Taniguchi
中科院分区：
文献类型：
--
作者：
J. Horikawa;Y. Hosokawa;M. Nasu;I. Taniguchi
摘要在麻醉动物（戊巴比妥钠30 mg kg−1）中，使用光学记录方法（电压敏感染料RH 795，12 × 12光电二极管阵列）研究了双音序列后豚鼠听觉皮层前部和背尾侧区域的时空反应模式。每个第一（掩蔽）和第二（探测）音调长30 ms，上升-下降时间为10 ms。将具有30-150 ms探针延迟的相同或不同频率的掩蔽物-探针对组合呈现给记录侧对侧的耳朵。对于同频对，在探测延迟小于50 ms时，对探测的反应被完全抑制，抑制持续时间大于150 ms，且在前野不同等时带的抑制幅度基本相同。对于不同频率（倍频程分离）对，即使在短至30 ms的探针延迟后，对探针的反应也未被完全抑制，抑制仅持续110-130 ms。抑制幅度不同的位置。
Abstract Spatiotemporal response patterns in the anterior and dorsocaudal fields of the guinea pig auditory cortex after two-tone sequences were studied in anesthetized animals (Nembutal 30 mg kg−1) using an optical recording method (voltage-sensitive dye RH795, 12 × 12 photodiode array). Each first (masker) and second (probe) tone was 30 ms long with a 10-ms rise-fall time. Masker-probe pair combinations of the same or different frequencies with probe delays of 30–150 ms were presented to the ear contralateral to the recording side. With same-frequency pairs, responses to the probe were inhibited completely after probe delays of less than 50 ms and the inhibition lasted for more than 150 ms, and the inhibition magnitudes in different isofrequency bands of the anterior field were essentially the same. With different-frequency (octave-separated) pairs, responses to the probe were not inhibited completely even after probe delays as short as 30 ms, and the inhibition lasted only for 110–130 ms. Inhibition magnitudes were different from location to location.
被消除的声音的感知恢复。
影响因子：
22.4
作者：
Warren,RM
通讯作者：
Warren,RM