Transmission of scotopic signals from the rod to rod-bipolar cell in the mammalian retina
Transmission of scotopic signals from the rod to rod-bipolar cell in the mammalian retina
复制标题
哺乳动物视网膜中暗视信号从视杆细胞到视杆双极细胞的传输
DOI:
10.1016/j.visres.2004.07.043
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发表时间:
2004
期刊:
影响因子:
1.8
通讯作者:
Robert G. Smith
中科院分区:
文献类型:
--
作者:
W. Taylor;Robert G. Smith
Mammals can see at low scotopic light levels where only 1 rod in several thousand transduces a photon. The single photon signal is transmitted to the brain by the ganglion cell, which collects signals from more than 1000 rods to provide enough amplification. If the system were linear, such convergence would increase the neural noise enough to overwhelm the tiny rod signal. Recent studies provide evidence for a threshold nonlinearity in the rod to rod bipolar synapse, which removes much of the background neural noise. We argue that the height of the threshold should be 0.85 times the amplitude of the single photon signal, consistent with the saturation observed for the single photon signal. At this level, the rate of false positive events due to neural noise would be masked by the higher rate of dark thermal events. The evidence presented suggests that this synapse is optimized to transmit the single photon signal at low scotopic light levels.
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影响因子:
3.4
作者:
BIALEK, W;OWEN, WG
通讯作者:
OWEN, WG
影响因子:
2.5
作者:
Snellman,Josefin;Nawy,Scott
通讯作者:
Nawy,Scott
DOI:
--
发表时间:
2003
期刊:
GLOBECOM 2017 - 2017 IEEE Global Communications Conference
影响因子:
--
作者:
A. Koschak;D. Reimer;D. Walter;J. Hoda;Thomas Heinzle;M. Grabner;J. Striessnig
通讯作者:
A. Koschak;D. Reimer;D. Walter;J. Hoda;Thomas Heinzle;M. Grabner;J. Striessnig
DOI:
10.1126/science.7754386
发表时间:
1995
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Schneeweis,DM;Schnapf,JL
通讯作者:
Schnapf,JL