First spike latency of ON/OFF neurons in the optic tectum of pigeons  

作　　者：Songwei WANG Mengke WANG Zhizhong WANG Li SHI 

机构地区：[1]School of Electrical Engineering,Zhengzhou University,Zhengzhou,Henan,China [2]Industrial Technology Research Institute,Zhengzhou University,Zhengzhou,Henan,China [3]Department of Automation,Tsinghua University,Beijing,China

出　　处：《Integrative Zoology》2019年第5期479-493,共15页整合动物学（英文版）

基　　金：the National Natural Science Foundation of China(NSFC)Gener­al program(61673353);the Young Scientist Fund of NSFC(61603344);Key research projects of Higher Education of Henan Province of China(15A120017).

摘　　要：Some shallow and middle optic tectum(OT)neurons have stable,asymmetric full-screen ON and OFF stimu­lus response properties,which makes them candidates for delay encoding.In this paper,we investigated the de­lay encoding mechanism for the neuronal clusters in the OT region of pigeons and determined the mechanism of delay coding in the OT region.By analyzing the responses of the neuron cluster under full-screen switch-on and switch-off stimulation,we found that the delay coding was widespread in the OT region where the ON/OFF stimulation time difference was 4-6 ms.Information theory analysis under grating stimulation and experiments based on single-neuron character reconstruction of neurons showed that OT neuron clusters use the first spike latency(FSL)for the rapid transfer of spatial structure information.Furthermore,4 models were used to pre­dict the first spike latency of these OT neurons.The best simulation results were obtained using an architecture where the ON and OFF paths of multiple retinal ganglion cells(RGCs)were integrated and summed,respec­tively.

关 键 词：delayed encoding information theory model optic tectum 

分 类 号：TN9[电子电信—信息与通信工程]