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瞳孔光反射中的水平依赖信号流。III. 高增益不稳定性振荡中的相速度

Level dependent signal flow in the light pupil reflex. III. Phase velocity in high gain instability oscillations.

作者信息

Myers G A, Stark L

机构信息

University of Iowa, College of Engineering, Department of Biomedical Engineering, Iowa City 52242.

出版信息

Biol Cybern. 1993;68(3):241-6. doi: 10.1007/BF00224858.

DOI:10.1007/BF00224858
PMID:8452893
Abstract

The pupil can be excited to sustained oscillations under high gain feedback conditions. The period of these oscillations (cycle time) is reduced by increased average light level by an amount commensurate with reductions in phase lag reported in the companion paper (Myers et al. 1991b). A mathematical model of this phenomenon is used to unify and clarify experimental data presented here and in the literature.

摘要

在高增益反馈条件下，瞳孔可被激发产生持续振荡。这些振荡的周期（循环时间）会随着平均光水平的增加而缩短，缩短的幅度与配套论文（迈尔斯等人，1991b）中报道的相位滞后的减少幅度相当。利用该现象的数学模型来统一和阐明本文及文献中呈现的实验数据。

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引用本文的文献

1
Level dependent signal flow in the light pupil reflex. II. Phase velocity of responses to sinusoidal light stimuli.瞳孔对光反射中的水平依赖性信号传导。II. 对正弦光刺激的反应相速度。
Biol Cybern. 1993;68(3):235-40. doi: 10.1007/BF00224857.
2
Level dependent signal flow in the light pupil reflex. I. Latency of time domain responses to transient stimuli.
Biol Cybern. 1993;68(3):229-34. doi: 10.1007/BF00224856.

本文引用的文献

1
Induced Pupillary Oscillations.诱发性瞳孔振荡
Br J Ophthalmol. 1950 Mar;34(3):180-9. doi: 10.1136/bjo.34.3.180.
2
A SIMPLE METHOD FOR THE EARLY DIAGNOSIS OF ABNORMALITIES OF THE PUPILLARY REACTION.一种早期诊断瞳孔反应异常的简单方法。
Br J Ophthalmol. 1944 Jun;28(6):275-6. doi: 10.1136/bjo.28.6.275.
3
The ocular manifestations of disseminated sclerosis.播散性硬化的眼部表现。
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4
Environmental clamping of biological systems: pupil servomechanism.生物系统的环境钳制：瞳孔伺服机制。
J Opt Soc Am. 1962 Aug;52:925-30. doi: 10.1364/josa.52.000925.
5
Stability and oscillations in a neurological servomechanism.神经伺服机制中的稳定性与振荡
J Neurophysiol. 1959 Mar;22(2):156-64. doi: 10.1152/jn.1959.22.2.156.
6
Level dependent signal flow in the light pupil reflex. II. Phase velocity of responses to sinusoidal light stimuli.瞳孔对光反射中的水平依赖性信号传导。II. 对正弦光刺激的反应相速度。
Biol Cybern. 1993;68(3):235-40. doi: 10.1007/BF00224857.
7
Level dependent signal flow in the light pupil reflex. I. Latency of time domain responses to transient stimuli.
Biol Cybern. 1993;68(3):229-34. doi: 10.1007/BF00224856.
8
Visual evoked potential and pupillary signs. A comparison in optic nerve disease.视觉诱发电位与瞳孔体征：视神经疾病的比较
Arch Ophthalmol. 1982 Oct;100(10):1603-7. doi: 10.1001/archopht.1982.01030040581004.
9
Pupil cycle time in optic nerve compression.
Am J Ophthalmol. 1980 Feb;89(2):263-7. doi: 10.1016/0002-9394(80)90122-1.
10
Insight into the transfer function, gain, and oscillation onset for the pupil light reflex using nonlinear delay-differential equations.使用非线性延迟微分方程深入研究瞳孔光反射的传递函数、增益和振荡起始。
Biol Cybern. 1989;61(1):51-8. doi: 10.1007/BF00204759.