Binaural interaction in low-frequency neurons in inferior colliculus of the cat. III. Effects of changing frequency.
Binaural interaction in low-frequency neurons in inferior colliculus of the cat. III. Effects of changing frequency.
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猫下丘低频神经元的双耳相互作用。
DOI：
10.1152/jn.1983.50.4.1020
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发表时间：
1983
影响因子：
2.5
通讯作者：
Kuwada,S
中科院分区：
文献类型：
--
作者：
Yin,TC;Kuwada,S
在巴比妥酸盐麻醉猫上，研究了改变刺激频率对下丘（IC）神经元耳间相位敏感性的影响，以重新探讨特征延迟（CD）问题。由于获得的结果与耳间延迟和双耳节拍刺激是相似的，我们使用平均耳间延迟曲线和双耳节拍周期直方图作为神经元的耳间相位敏感性的可比表达式。当不同频率下的平均耳间延迟曲线被绘制在公共时间轴上时，对于某些细胞，所得到的叠加延迟曲线显示出在某个CD处重合的峰或谷。然而，对于大多数细胞来说，这种通过目视检查检测CD的方法会产生模糊和不确定的结果。从所有归一化叠加延迟曲线的平均值计算的复合曲线也无助于显示CD。为了提供更客观的数据分析方法，我们绘制了平均耳间相位与刺激频率的关系图，并使用均方误差作为线性度量来计算线性回归线。回归线的斜率是神经元的CD，相位截距被称为特征相位（CP）。在峰值放电时显示CD的电池具有CP = 0.0个循环，而在最小放电时显示CD的电池具有CP = 0.5。表现出CP为0.0、0.5或1.0以外的任何值的细胞将具有峰或谷以外的某个相对幅度的CD。对于在峰或谷处显示CD的细胞，使用相位-频率图的分析程序的结果对应于从目视检查获得的结果。对于未显示共同峰或谷的细胞，分析程序不仅指定CD的位置，还提供线性的统计标准。从该分析中，约60%的运行被鉴定为满足P小于0.005水平的CD标准，并且这些CD中的71%在+/-300微米之间。大多数CD细胞在响应的峰或谷时不具有CD。我们的结果与以前的研究中发现的结果不同，但它们与Rose等人提出的原始概念基本一致（31）。有些星系的CD或CP随强度的变化几乎没有变化，而另一些星系的CD和CP都有明显的系统性变化。通常，复合曲线的峰和谷显示出比CD更小的强度变化性。（400字处截断摘要）
The effects of changing stimulus frequency on the interaural phase sensitivity of neurons in the inferior colliculus (IC) were studied in barbiturate-anesthetized cats in order to reexamine the issue of characteristic delay (CD). Since the results obtained with the interaural delay and binaural beat stimuli are similar, we used the averaged interaural delay curves and binaural beat period histograms as comparable expressions of a neuron's interaural phase sensitivity. When the averaged interaural delay curves at different frequencies are plotted on a common time axis, for some cells the resulting superimposed delay curves show peaks or troughs that coincide at some CD. For most cells, though, this method of detecting a CD by visual inspection yields ambiguous and uncertain results. Composite curves, computed from the average of all the normalized superimposed delay curves, are also not helpful for showing CD. In order to provide a more objective means of analyzing the data, we plotted the mean interaural phase versus the stimulating frequency and computed the linear regression line, using the mean square error as a measure of linearity. The slope of the regression line is the CD for the neuron, and the phase intercept is referred to as the characteristic phase (CP). Cells that display a CD at the peak discharge have a CP = 0.0 cycles, while those that show a CD at the minimum discharge have a CP = 0.5. Cells that exhibit a CP at any value other than 0.0, 0.5, or 1.0 will have a CD at some relative amplitude other than the peak or trough. For cells that exhibit a CD at the peak or trough, results of the analysis procedure using the phase-frequency plot correspond to those obtained from visual inspection. For cells that do not show a common peak or trough, the analysis procedure not only specifies the location of the CD but also provides a statistical criterion of the linearity. From this analysis about 60% of the runs were identified as satisfying the criteria for CD at the P less than 0.005 level and 71% of these CDs are between +/- 300 micros. Most CD cells do not have the CD at the peak or trough of the response. Our results differ from those found in previous studies but they are in essential agreement with the original concept put forth by Rose et al. (31). Some cels exhibit little change in the CD or CP with variations in intensity, while others display marked systematic shifts in both CD and CP. In general, the peaks and troughs of the composite curves show less variability with intensity than the CD.(ABSTRACT TRUNCATED AT 400 WORDS)
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影响因子：
1.3
作者：
S. S. Stevens-S.;E. B. Newman
通讯作者：
S. S. Stevens-S.;E. B. Newman
影响因子：
2.5
作者：
ROSE, JE;GROSS, NB;HIND, JE
通讯作者：
HIND, JE
耳间时间差异：关于声音定位的神经生理学的影响。
DOI：
10.1121/1.385196
发表时间：
1980
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
Roth,GL;Kochhar,RK;Hind,JE
通讯作者：
Hind,JE
影响因子：
2.5
作者：
BRUGGE, JF;MERZENICH, MM
通讯作者：
MERZENICH, MM
成年猫下丘的神经元组织。
DOI：
--
发表时间：
1973
期刊：
The Journal of comparative neurology
影响因子：
--
作者：
A. Rockel;E. Jones
通讯作者：
E. Jones